Two Strikes Three Balls! the Pitcher Has Completed That Slow, Leisurely, Tanta- Lizing Wind-Up

www.americanradiohistory.com Two Strikes Three Balls! The pitcher has completed that slow, leisurely, tanta- lizing wind-up. That long, lithe, million-dollar arm has flashed back. A moment . . and the ball, a white, hissing streak, is catapulting toward the catcher's waiting mitt. And the winning or losing of a World Series depends on whether or not the batter has his eye on the ball.

A Cunningham Tube always has its eye on the ball. It stands ready to transmute an electrical impulse, traveling at a speed which would make the speed of a baseball seem a snail's pace, into music, a President's message- what you will. Since 1915 Standard fr for All Sets

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www.americanradiohistory.com RADIO MAGAZINE 1 1 \1:» , ')2 5 WIRELESS AGE - THE

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Surely a Wonderful TOWER TRIUMPH Unquestionably the greatest Loud Speaker Value ever offered, giving the quality and volume to be found in the most expensive speakers, but priced within the reach of all. The same true (cello like) tone that has made Tower's Scien- tific Phones the World's most popular headset is characteris- Tower's Scientific tic of the NEW TOWER Phones are tested LOUD SPEAKER. and approved by The many features include Government li- magnets that lift 2 lbs. 10 oz., censed Radio Oper- diaphragm of specially con- ators, thus guar- structed material, perfect non - anteeing uniform vibrating fibre horn, finished tone, quality and in beautiful golden bronze accuracy. Weight with 10" bell. only 8; ozs. The __:-.- logical Phone to buy. The Woolworth Bldg., New York City, is the On sale at all good dealers tallest office building in from coast to coast. the world being 792 feet high, containing 60 stories, and having an estimated weight of 206,000,000 pounds. THE TOWER MFG. CORPORATION 98 BROOKLINE AVE. Dept. Q BOSTON, MASS. worlds Greatest Loud Speaker Value

"Quality Goode for Quality Readers" l www.americanradiohistory.com tre e She Radio Magazine NIWr May, 1925- Contents Your c4uthors Cover Design, By F. Reed - Editorial 6 pAURIE YORK ERSKINE (Me London Voice Talks to U. S., By J. Eddy 9 From the Cabinet) is the author of the famous "Renfrew" stories. Quality and DX with 5-Tubes. By R. A. Bradley 12 In one year Mr. Erskine wrote "The Horns, By Dr. John P. Minion 14 River Trail" and The Laughing Rider." He is also the author of The Confidence "D- Coil ", By K. M. Macilvain 17 Man," "Valor." and In the Event of Ail, By Dr. Mat Talmey 18 Death." "The Voice from the Cabinet** written especially A Real One -Control Receiver, By S. F. Finkelstein 20 for Wireless Age-The Radio Magazine, is an attempt to do a Cross Word Contest, By Helen F. Diuus 22 worth -while short story that has its locale in the living room Aerials, By_William F. Crosby 23 of any ordinary American home. You will agree that he Low -Loss Coils, By K. M. Macllvain 24 has succeeded beyond your expectations after reading the story. Broadcast Impressions, By Ed Randall 25

Radio Cabinets, By H. P. Strand 26 dtatttlttntettttlltttla A Radio Star Interviewed, By J. Addy - - 28 BCD RANDALL (Broadcast Impres- World Wide News, By C. S. Anderson - 31 sions) is a native of Rancho de los Bolinas y Tomales, Marin Co., Cal. He Giant Radio Lab.. By W. T. Meenam - - 32 graduated from California School of Radio Tempers the Tornado, By Albert Laird - 33 Mechanical Arts in ,go7 and the Col- lege of Mechanics at the University "How -do- you -do? ", By Ann Lord 34 of California in 1415. As civil engineer he The Voice from the Cabinet, By Laurie York Erskine - 36 had charge of harbor improvement works N.T. G. Speaking: "Ready Boys? Let 'er Go!", By Golda M. Goldman 40 in Seattle, San Francisco, St. Pedro, San Diego, Galveston, Hampton Roads, Ches- Education via Radio, By Mrs. Christine Frederick - - - 42 apeake Bay, Newark Bay, Plymouth, S. The H. I. in Broadcasting, By Dorothy Brister Stafford - 44 Boston. and as an outstanding caricaturist he has done work for a number of newspa- Mr. T. P. Alley, By Earl Reeves 45 pers and magazines, as follows: New York KHJ, KFI, KNX, KJR, KGO, KPO, By Dr. Ralph L. Power 46 Daily News, New York Evening Globe. Evening World, Yachting. Industrial WGR Ensemble, By Lloyd S. Graham 48 Digest, Commerce, Finance and Indus- Television a Reality, By Theo. M. Sewards 49 try, Playthings, Iron Age, Hardware Age, Progressive Grocer, Groceries Retailer, Appliances and Devices 50 Talking Machine World, and Wireless The Greenland Radio Stations, By O. Lund Johansen 52 Age -The Radio Magazine. Amateur Stations of the United States 77 Broadcasting Station Directory 79

PUBLISHED MONTHLY AT WIRELESS PRESS. INC., 326 BROADWAY. NEW YORK Les Angeles, Calif., 1116 Chapman St., Coast Publishers Co. Chitties. III.. Wrigley Bldg., Wheeler & Northrup. Boston. 18 Stewart St.. Charles M. White. Sal Francisco, 821 Market St., Coast Publishers Co. Great Britain. 12 -13 Henrietta St., London. Australia, 97 Clarence St.. Sydney, N. S. W. Yearly subscription In U. S. A., $2.50- Outside U. S. A., $3.00; Single Copies. 25 cets. Entered as second class matter Oct. 9, 1913. Post Office, New York, N. Y., under the Act of March 3. 1879. f,psrlght, 1925, Wireless Press, Inc. When subscription expires you will find a renewal blank enclosed. Return with remittance promptly.

James G. Itarbord, Pres. I'lerre Boucheron. Pite -Pros. and Oen'l Mgr. L. MacConna ch. Secy. George S. UeSousa, Treas. H. H. Reber, Bus. Mgr. C. F. Boon. Adv. Mgr. C. S. Anderson. Managing Editor R. A. Bradley, Technical Editor

Because certain statements and expressions of opinion from eortespundenls and others, appearing In these columns from time to time may be found to be the subject of ,ontroversy In selentlae circles and In the courts either now or in the future and to sometimes involve questions of priority of Invention and the comparative merits of apparatus employed In wireless signaling, the owners and publishers of this magazine positively and emphatically disclaim any privity or responoil,Illty for any statements of opinion or partisan expression if such should at any time appear herein. Printed' in U, S. A. THE WIRELESS AGE is a member el the Audit Bureau of Circulations

www.americanradiohistory.com MAS', 1925 WIRELESS AGE - THE RADIO MAGAZINE 3 Radio at its Finest ems Now WitlünYourReach h.,¡`v,Y.Z17P

AN ALL -AMAX RECEIVER At your favorite Semi- Finished - Factory- Mounted Radio Store OU buy this set with the ALL -AMERICAN parts properly mounted on the panel and baseboard. Without Ask them about knowledge of blueprints, circuits or names of radio parts, the great delightful eve- you can wire up an ALL -AMAx SENIOR in one ALL -AMERICAN ning and know that it is right. It was inevitable that sooner or later this reliable -and still economical- method of getting Slogan Contest a high -grade radio set should be discovered. ALL- AMERICAN manufacturing ingenuity has found You can win the solution and offers this com- a set by pletely mounted, highly efficient submitting a three -tube set at no more than you Ì SLOGAN would pay for a kit of parts. Price, $42 Ì Ten cents will bring you the new Radio Key can Book, and upon request we will include, free, Everybody a complete wiring blueprint of either ALL - Ó ALL -AMAXJUNIOR enter. It costs AMAX SENIOR or ALL -AMAX JUNIOR. IThe same unique manufacturing rmethods that created ALL -AMAX (.. nothing s, SENIOR have brought forth ALL- ALL-AMERICAN RADIO CORP. AMAX JUNIOR -a one -tube set E. N. Rauland, President / that b nn' g s ,n th e 1 oca 1 s t a t ions L 2674 Coyne Street, Chicago / on the loud speaker. or tunes them and gets real distance. parts are mounted on panel endand baseboard, and clear photo- n2d,/ graphicra hic wiringin directions are included. Price . 22 L ERICAN

"Quality Goods for Qun 111 y Iti :nlw-"

www.americanradiohistory.com 4 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925

Look for the Checkered Box Brass Plates - Soldered Joints-Grounded Rotor Are Standard Features of the 'Bradleydenser The Bradleydenser is a low -loss condenser with many dis- tinctive features that insure long life and high efficiency. For instance, the brass stator and rotor plates are soldered at all joints. The plates cannot become loose, corrode at the joints or work out of alignment. The rotor is mounted on a long sleeve bearing that supports the rotor plates without the use of an outer end -plate. Therefore, the dielectric material is reduced to two small buttons. This means low loss and sharp tuning. The stator plates are protected with a dust cap that can be detached without tools. The minimum capacity is extremely low, and body capacity effects are greatly reduced. The entire design makes for the highest efficiency in radio receivers.

'Build for Co. Use the Efficiency Electric Controlling Apparatus Bradleydenser 283 Greenfield Ave. Milwaukee, Wis.

This filter tuner with Send for the latest in- resistance- coupled formation on the Brad - audio amplifier is leydenser. It will pay you to know about this equipped with Bradley - remarkable low -loss densers. The tuning is condenser before plan- sharp and selective. ning your next radioset.

"Quality Goods for Quality Readers"

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE 5 You need a headset - to tune in with to get distant stations - both domestic and foreign listen -in without disturbing others to shut out the noise in the room and get all the radio fun -9 to get the truest and clearest reception - always No one realizes these facts more forcibly than the makers of the famous Radiola ILIA. They include Brandes as standard equipment. Be sure your set is Brandes equipped i

"Quality Goods for Quality Readers"

www.americanradiohistory.com 6 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925

uze Ga.t

« ELIA) America! This is the Hotel Savoy Orchestra broadcasting from .5 Savoy Court, London, England, Station 5XX." 'l'hus into existence came the first practical, public demonstration of Lnternational Radio Broadcasting. And it happened only recently-What will the near future bring! Already there is talk of television and movies by radio, and IVIRELESS AGE-The Radio Magazine, this month tells you something about that, but more particularly in "London 'l'alks to U. S.," does it present the possibilities in International Re-Broadcasts. Step along with the tines and inform yourself about this wonderful work. Radio Fiction \1'IRI:I.ESS AGE-The Radio 'Magazine, has created a standard in radio fiction stories -our readers tell us so -this month Laurie York Erskine, well known boy's adventure story writer, in the "Voice from the Cabinet," tells you a keenly interesting mystery tale without leaving the comfortable environment of a typical American home -and radio does NOT solve the mystery either. Serious -Entertaining- Humorous "Radio Tempers the Tornado," describes how, in modern days, cataclysms of nature do not entail the suffering and damage that formerly had to be endured. In the recent tornado organized relief measures were effective within less than 24 hourse, mainly because of radio -WIRELESS AGE is happy to be able to present this picture. The "How -do- you -Do ?" man who conducts by radio, a lost and found service is worthy your attention, and then turn to "N.T.G." to learn about one of the most popular announcers as determined by public contests and let- f ters. Ed Randall too, in his "Broadcast Impressions" will stir your risibilities and then, for variety, you can turn to "The H. I. in Broadcasting," which Dorothy Brister Stafford insists you will want to read every month. The Pacific Coast Stations are doing their bit and Dr. Power tells you about it, and Lloyd Graham does the same thing for the WGR ensemble. Technical "Loud Speaker Horns" is Dr. Minton's contribution this month and he tells you all about radiation and reflection. R. A. Bradley's "Quality DX 5- Tube" set will go big-we've heard it work -and he tells you how easy it is to construct. Another "D- Coil" made by one of our readers and what it has done simply bears out our former praise of this receiver. Don't overlook the "One- Control Receiver," "Aerials," "Low -Loss Coils," "Radio Cabinets" and the R'IRELESS AGE regular features. The WIRELESS AGE family is increasing rapidly so don't fail to keep informed about its activities. -THE EDITOR.

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE

From Phonograph to Radio in a Jiffy. Phonographic reproduction is justly famous for its accuracy and tone. But your own Phonograph will excell its best prior performance when you connect it with your Radio set by a Jewett Vemco Unit. Slips on or off in a jiffy -no tools needed. A phonograph one minute, a Radio loudspeaker the next. But be sure the unit is a Vemco -the leader of all Radio - Phonographic equipment!

The same producer we use in the world - famous Superspeaker- Adjustable for volume control -Areal musical instrument built by experienced musical instrument people- Standard model fits Victrola tone arm -simple adapters for other phonograhs.

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emco"Quality Goods for Quality Readers" nit www.americanradiohistory.com WIRELESS AGE - THE RADIO MAGAZINE MAI, 1925

Facts . not Fancie !

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r.vt H eSMt 117 vAN1A0;,At:M1%., ;)\ n ,,,, , , k in ,, ,., where Condenser losses Come from? RESISTANCE LOSSES are the losses which most serious- The design of General Radio Condensers ly affect the efficiency of a conden- is based on scientific facts and principles, ser when at working radio fre- not on style and fancies. quencies. They arise from poor Specially shaped plates always in perfect contacts between plates and from alignment give the uniform wave -length poor bearing contacts. Soldered variation which permits extremely sharp plates and positive contact spring tuning. bearings reduce these losses to a Rotor plates are counterbalanced to make minimum. possible accurate dial settings. Eddy current losses occur in In 1915 the General Radio Company in- metal end plates and the conden- troduced to this country the first Low Loss ser plates themselves. While not Condenser, and ever since has been the so serious as resistance losses, leader in condenser design. they increase with the frequency, Lower Losses and Lower Prices make and therefore should be kept as General Radio Condensers the outstanding low as possible. values of condenser design. Dielectric losses are due to ab- Licensed for multiple tuning under Hogan sorption of energy by the insulat- Patent No. 1,014,002 ing material. Inasmuch as they vary inversely as the frequency, Type 247H, with geared Vernier they have less effect upon the Capacity, 500 MMF. Price $500 efficiency of a condenser at radio frequencies than of Type 247 -F, without Vernier any other set Capacity, 500 MMF. Price $325 losses. The use of metal end plates in short -wave reception to eliminate dielectric losses is never justified, because they introduce GENERAL RADIO CO. greater losses than well -designed CAMBRIDGE, MASS. end plates of good dielectric. RADIO Quality Parts

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www.americanradiohistory.com NUMBER 8

X. England. IXAL, Belfast. Me. and WJZ New York The links in the international broadcasting system -- antennae of 5X Talks to U . S. LondonInternational Broadcasting By J. eddy

days are past. You What with all six telephones ringing N. I have been in radio more o «I old radio too at once, two powerful loud speakers or less since I was 'knee -high know as well as I that there are these going full blast with the Hotel Savoy to a grasshopper,' and many is many in the game now. All Orchestra music announcers in full the spinal column thrill I've had out high-power broadcasting stations with evening regalia hanging magnificently of the game. There was the first radio programs scheduled weeks in advance organized around with absolutely nothing to do, signal I ever picked up -what if I and everything coldly - more. The and even Al busy answering incoming did have only a piece of two -by -four there's no kick in it any phone calls, I confess that then and wound with enamel wire instead of an (lays of thrills are gone!" And, like there I realized my error -the days eight -tube superheterodyne; what if it as not, if the other chap had also been in the when radio could yield me a Big Kick (lid turn out to be only the stock ticker interested in the game as it was were not gone. Indeed I scarcely ex- in corner saloon instead of the old days, there followed a sad hand- the when I say that to me this Brooklyn Navy Yard? The first time shake and silent tears. aggerate story of the instantaneous transfer of there came over home -made coils the The other night -it was Saturday, music and words from a ballroom in faint piping note of the then famous March 14--the job that had weaned the heart of London to the aerial tow- alternator at Nauen, Germany, the first me from radio led me into the broad- ers of WJZ, and thence into millions time signal, the first SOS, the first ra- casting rooms of WJZ in Aeolian Hall American homes is as truly roman- dio telephone signal picked up -back on Forty- second Street, New York. It of tic as the story of Guglielmo Marconi in 1915 -always in those days thrills was the eve of the first serious attempt and the three faint dots that told that seemed to lie waiting around the cor- at transoceanic broadcasting, and WJZ, the Atlantic Ocean had been spanned ner for that died -in- the -wool radio nut, from Carl Dreher, engineer in charge, wires to Cape Sable that night myself. down to ebon -hued Alvin, who wears a without back in 1902. Indeed, so fond were my memories janitor's uniform and knows more Several months ago the Radio Cor- of the older days in radio that until about how a broadcasting station is run poration of America sent a group of recently I was in the habit of exclaim- than any other man I can think of, was young engineers up to Belfast, Maine, ing to such as would listen, "Yes. 'but agog with it. In more ways than one and small romance was there in the to he perfectly honest, old fellow, the there was "something in the air." 9

www.americanradiohistory.com 10 WIRELESS AGE THE RADIO - MAGAZINE MAY, 1925 proposition for them. It was bleak this radio chain. mid -winter. And the Van Cort- and women in evening clothes The company had, up landt Park station was dining, there, linked with drinking and dancing, and in the an antenna system ten miles WJZ in the heart of New center long, ordinarily York by of it all the silent little black box called used for the reception a leased wire of the Western Union of signals in transoceanic a microphone. radio tele- Telegraph Company, just as Radio With graph work. Waves many their receiving apparatus tuned thousands 2L0 in London and the 25,000-watt to 112 meters, of meters long were received, not ra- Weinberger and Guy station at Chelmsford were tied up by listened for the sounds diophone, but the dots and dashes in wire. which were to which be picked up at Belfast and re- trans- commercial messages are It was five - forty handled. -five on the evening mitted. Finally came the faint of the fourteenth and Julius murmur These engineers, Wein- of a distant voice. Then, unmistakably, however, were in- berger and Raymond Guy, radio engi- the syncopating structed to see what could be done in strains of a jazz band. the way of reliable reception from the .shorter wavelength stations on the

The control room of the Radio Corporation of America. station WJZ through which the London programs were rehroadca,t to millions via WJZ, WGY and WRC other side that were transmitting mu- veers, were leaning intently over their It was now all a question if the opera- sic and speech, in particular the experi- apparatus in the Van Cortlandt mental labora- tors at 1XAL in Belfast,. and if Wein- station 5XX of the British tories. The setting sun was casting its Marconi Company berger himself, could tune in the faint at Chelmsford, a last shadows through the haze of an sounds town some sixty miles loud enough above the crackle out of London, early spring afternoon in New York; of the sending on 1600 meters. ever -present atmospherics to he The Bel- in London midnight approached. "put on fast station was assigned government the air" at WJZ. As dusk As everyone knows today, nightfall fell, that is call letters XA L. as a larger and larger por- -1 brings with it an added power to the tion of the intervening 1XAI. was only a link Atlantic sank in the chain faint radio impulses that will often into the darkness of that Dr. Alfred N. Goldsmith, Chief night, the faint carry them many times farther than sounds grew strong. Soon Broadcast Engineer of the Radio Cor- (luring there could daylight hours. be no question about it. At poration of America knew would last the Already it had been dark six hours word came from Dr. Goldsmith, the eventually span the Atlantic with voice on the other side of the Atlantic. engineer to whom the inception and and music. Already well- equipped lis - Weinberger and Guy, over their teners-in assem- success of the experiments are attri- on both sides had, by virtue blage of coils and tubes and condensers. buted-"Go of ingenuity and patience to it !" and imagina- motor generators and switches, visual- It is a few minutes later tion, picked up recognizable signals downtown ized a contrasting scene eight hundred in the grillroom of the Astor Hotel. from across the ocean, but now plans miles to the northeast -not a large Freddie Rich, conductor of one of were being laid for something that brick building in a great city, would but a Broadway's dance orchestras, finished be big enough to benefit the gen- little affair on a barren plain near the leading eral public. his players through a number, Maine coast ; and, beyond that, three bowed in response to the flurry At the test laboratories of the of Radio thousand miles to the eastward, an- handclapping, then turned to the broad- Corporation of America at Van Cort- other great city, with bright lights landt Park and cast operator in charge of the control South and Saxon Avenue, rumbling traffic, somewhere in the unit and microphones New York City, was another by means of link in midst of it a brilliant ballroom, men which Rich radiates regularly Saturday

www.americanradiohistory.com U. S 11 MAY, 1925 LONDON TALKS TO When Right was told that he was nights at six. He demanded, "Haven't to be concentrated. A barrage of tele- dozen trunk wrong-that the distortion was due to I got the air yet?" phone calls over half a atmosphere to the the music's being rebroadcast from 'Not yet, Freddie." lines lent clamorous a No sooner was a receiver London -he seemed to think that Another number was played through. occasion. to spoof The operator, hung up than the bell would be at it studio attendant was trying Rich waxed impatient. up in a huff. smile, told him, again. him, and hung with an irritating the millions of listeners within suh ; sho' am one busy eve- For "They're putting another orchestra on "Yes, WRC the ning !" said janitor Al after convincing range of WJZ, WGY and the air !" of the evening came at was more of an an excited fan at the other end of a highest moment "How come ?" It when "Big Ben" in West- than a query, for Rich wire that yes indeedy it was London, seven o'clock expostulation Abbey tolled off the English a rival. England, he had been listening to. minster scented I don't know much about "The Savoy Hotel Orchestra in Lon- Pulling forth a square yard of hand- midnight. what they call "showmanship" in don, England, is now broadcasting kerchief tinted a dark and dangerous mop his sombre broadcasting, but I should certainly from was the momentous reply ; orange Al proceeded to WJZ," to compliment the Britisher who and Freddie was left to console him- brow. like

London that was rebroadcast throughout the United States The Hotel Savoy Orchestra broadcasting program from of putting a microphone distance, "Some ob de gol darn fyoolishest had this idea self with the reflection that belfry of that famous edifice at are 3,000 miles questions what they asks me !" he com- in the especially when there of the city end of London Bridge. enchantment. plained. "Nor that ain't all. One of it, lends Mayor Hylan an' It tolled off the end of an epochal It did not take New York and en- dame say she know come up heah an' hey me dis- day in radio, and, I am ready to believe, virons many minutes to realize that is gwine the chahged caze I didn't not put in the in the history of relations between there was certainly something in the nations. sitting newspapers 's how I was agwine to English -speaking air. All over the East families genius of our radio en- new American broadcast London!" Affairs weighed When the down to dinner in the gineers has brought the two sides of "Radio while you eat" heard heavily on Al's shoulders. habit of in the re- the Atlantic into nightly contact so that out of their loud speakers the startling Just then both telephones ception anteroom started clanging. the cultural ideas of either are available words : millions of homes of both by the is the Hotel Keith McCloud, the well -known pianist in the "Hello America! This process of switching on radio broadcasting from 5 and musical director at WJZ, was go- simple Savoy Orchestra broadcast tubes, then there will remain small Court, London, England, Station ing over an act with two Savoy The popular "A. O. N." was room for misunderstanding and dis- 5XX," followed by recognizable Broad- artists. of busy borrowing a match to light cord. True, such a vast amount way song hits rendered almost as satis- very before a cigarette he had just borrowed. Pick- research remains to be done factorily as Freddie Rich himself could can be per- ing up a receiver I heard : international broadcasting have done. the men who conducted this seven -forty "Hello, hello! WJZ? Is that fected that From six o'clock until first test are loath to predict WJZ? . . ." thorough the re- broadcasting continued. the length of time it will take. But it one might have "Well, now, listen, WJZ ; I am Mr. Up at WJZ where is not too much to expect that Euro- was^ñothing much go- Right. Get me? Right ! Now I have supposed there in on pean concerts in Mid -Western homes the movement of a number such and such a set and I tune ing on save Now I just and Chicago dance music in Riviera of invisible ions inside of vacuum tubes you people every night. want to put you wise to something villas will be common -place occurrences and the rotation of a motor generator - more years pass by and the entire your apparatus is on the blink. The before two or two, the excitement of that will mean cultural changes too. broadcast -listening fraternity seemed music isn't as clear as usual-"

www.americanradiohistory.com Qualify and DX with 5 -Tubes Resistance -coupled a. f. makes this set superb in tonal quality By `R e/1. Bradley

can't delve far into radio re- We have here a receiver very much but a ceiver development without like moisture -proof cellulose com- the DX- Go- Getter which we have pound which renders ONEcoming to the conclusion that designed, constructed, the finished coil tuned radio frequency torn down and very strong and does not materially must be used rebuilt, until now in its finished form, for knife -like separation of stations add to the very low distributed capac- it is a set certainly to be proud of. The ity and a lower static - signal ratio, and that of the winding. These coils are tuning units are so designed that the so placed regeneration applied to the detector set in the receiver that there is is easily made stable over the en- no mechanical tube is the only way to obtain the ulti- entire broadcasting coupling between them, range and this sta- thus preventing any feedback mate in sensitivity. To combine them bility remains constant between means and is entirely the radio frequency stage and employing tuning units of care- independent of the regenerative the de- ful design to secure detector. The slight capacitative coup- successful opera- tector and its tickler feedback, which tion while those of careless design ling inherent in the tube base, elements will is essential to the set's correct opera- and socket give troublesome instability. tion. is easily counteracted by a In the December small neutralizing condenser which issue we presented The tuning units which include a receiver which proved the once adjusted can be forgotten. to be almost as antenna tuning coil and the detector popular and as efficient One outstanding characteristic of as the now coupler unit are very novel in their nationally known "D- Coil." this receiver is its superb tonal quality This set construction and likewise very effi- obtained incorporated the radio frequency stage by the use of the super- ampli- cient. These coils are wound in a plain fier, a three ahead of a regenerative detector and solenoid stage resistance coupled form from which all dielec- audio frequency amplifier was in reality a "DX -Go- Getter." It tric has been removed in one unit, certainly and the coil which is placed on the sub -panel. brought in the far -away sta- supported by two thin Bakelite The tions in fine strips. amplification secured with this type shape. The coils are not doped with of varnish, amplifier is certainly all that can be

In this illustration only two or three connecting wires are visible. All leads carrying radio -frequency currents are run above and all A and B battery leads are run beneath the stib -panel 12

www.americanradiohistory.com A.F. RECEIVER 13 MAY, 1925 RESISTANCE -COUPLED -, SUPER- AMPLIFIER

Filament Switch A-

A+ D - 6 +4S

g+ IOO,

there are to the rest of the set. It amplifier is shown in this diagrameurtesurrounded dotted The Super- merely by tidg lisup a whSee t freweconrnections cially recommended as it is advisable is perfect. asked and the reproduction LIST OF MATERIALS to burn the tubes at the voltage rating It is economical in B battery consump- Antenna Inductance seem to operate best, if it One Silver where they tion and its only disadvantage, Coil which is the whole reason for includ- could be called such, is the necessity One Silver Detector Coupler reading voltmeter in Two Silver .0005 mfd. variable ing the accurate for a third tube. the set. This is a Jewel Voltmeter is much sim- condensers Tuning this receiver Daven Super -Amplifier com- 0 to 15 volts. It would three -dial One reading from pler than the conventional plete. perhaps be better to have a scale read- tuned R.F. receiver as we do not know Two Ultravernier Dials Voltmeter ing of 0 to 7.5 so that finer gradua- of anyone with the necessary three One 0 -15 Jewell vicinity of of One Knob for tickler control tions might be had in the hands for the proper manipulation Standard Sockets the tubes generally op- set. The Two Howard 5 volts, where this latter type of receiving Three Bradleystats best. The UV- 201A's, which we to nearly the for filament erate two condensers are tuned One Bradley switch used in the resistance-coupled ampli- same dial setting and the tickler is ad- control results at a Two Pacent filament lighting fier, we found gave best justed only for bringing up volume, of a volt be- follows jacks 4.25 volts- three -quarters procedure which, of course, One Neutralizing condenser of the manufacturer. of the station. low the rating the immediate tuning -in One .001 mfd. Dubilier fixed con- Under -burning your tubes like this The tickler setting remains fairly condenser. their lives. The waveband One .00025 mfd. Dubilier fixed considerably lengthens stant throughout the entire A battery runs di- in the design of condenser positive lead of the showing unusual care One .006 mfd. Dubilier fixed con- the voltmeter, and be con- rectly to one side of this coil alone. Volume can denser is fastened a the tickler. Daven Grid leak to the other terminal trolled to a great extent by One 4 megohm with a spring clip at- insufficient the rheo- Six Eby binding posts flexible lead, When this proves Panel brackets so that the voltage across any controlling the resistance -coupled Two Benjamin tached, stat One 7 x 24 Radion Panel individual tube may be had at any amplifier can be turned down for less x 24 Radion Sub -Panel One 0/2 (Turn to page 30) volume. But this is not to be espe-

the those on the amplifier. These latter posts are The battery connections to the receiver are to the cded to batteryigposts nrunning su úunder l he

www.americanradiohistory.com loud speaker

)r. Minton tr,Ung loud HORNS knt horns Characteristics of reflection and radiation By 'Dr. John T. Minton

IN OUR preceding article we discus- This is shown by the curves sed in the the acoustical performance of preceding paper. This is another rea- straight pipes ; described the method son why horns give a more uniform of testing loud speakers with great response than pipes and precision, are more and discussed the acoustical satisfactory for radio reception than characteristics of straight conical the latter. horns. We saw that straight pipes We saw in our last article are very that efficient resonators and with- sound is reflected from the opened end in certain narrow frequency limits, of a pipe or horn back into these sound corresponding to the fundamental devices. Because of this phenomenon tone, these pipes sometimes may in- of end reflection resonance is built crease up the sound energy ten thousand which increases the total sound in- times. Outside these narrow fre- tensity. However, reflection of sound quency -bands no increase in sound back into the pipe or horn tends to energy is brought about by the pipes. prevent the escape or radiation For of this these two reasons alone straight sound out into the surrounding space. cylindrical pipes are wholly unsatis- If this reflection could factory be entirely for a loud speaker horn. eliminated or avoided, then more sound Horns of many varied shapes have would escape into the outside air. been designed and any one of is these Such a horn would be a good radiator, flounced better than a straight pipe for a loud so with the smallest horn and to speak, of sound energy. What least with speaker. One reason for this is that is lost largest horn. On the other by the absence or diminution of hand, the radiation horns have less pronounced resonant resonance is regained of sound should be pretty largely least for the smallest horn properties than pipes. If the reader by increased radiation, as and most we call it. for the largest horn. Large sound will recall the heights of the most Let us give some curves for loud radiation means no sharp peaks in prominent peaks of the curves shown speakers which have straight conical in the last article, he these response curves, while small will see that in horns in order to see the significance sound no case do these heights extend radiation (and therefore strong to of these two factors ; viz., resonance resonance) more than three or four times the and radition. means sharp peaks. heights of the Let me say, parenthetically, that adjacent minima. In figure 1 are shown four curves both "Three or four" is the diaphragm and horn peaks a long ways from for horns one foot long, but with final show "25. to a 100" as observed up in these curves. If a horn for pipes. openings of different sizes. The init- and diaphragm Consequently, horns will give peak should by chance a more ial opening in each case was -4 of an be at the uniform response at the same frequency, then the various f re- inch. These final openings, as indi- sound would quencies than pipes will and be unusually loud at this for radio cated in the figure, varied from 2/ to particular frequency. reproduction are, therefore, superior 8 inches. The reflection This would of sound back prove unpleasant and we to pipes. into the horns from always avoid their large ends this where possible to do so. Between the horn peaks, the res- was greatest for the smallest We ob- horn and serve that there are three main reson- ponse caused by the horn exceeds least for the largest horn. Conse- greatly ant regions in connection with the that caused by straight pipes. quently, resonance will be most pro - fourth curve (d) in figure 1. These Length -3i CM. Opening - S CM. Length -34 CM. Opening -15.3 CM. -34 - 10 Length CM. ODen ng 20.3 CM. h 38 38 ó6 34 34 c 31 2 11/i111niiMIS 30 ú 30 400 1200 2000 2800 3600 V 26 Frequency - Cycles Ç 26 22 P' ° 22 Len th -34 CM. ODenin -10 i8 3 CM. .7. 18 18 -d- 14 ó 14 b 510 ° 10 t6 10 T 6 "" 6 2 A.) o 400 1200 2000 2800 3600 0 400 1200 2000 2800 3600 0 400 1200 2000 Frequency- Cycles 2800 3600 Frequency - Cycles Frequency -Cycles Figure i

www.americanradiohistory.com LOUD SPEAKER HORNS 15

Leoqtn 123CM Ooenin -31CM. termined completely are at 500, 1100 and 3o the physical constants 2300 cycles and they 26 which are necessary are due to the dia- for us to design a phragm. In fact , conical horn which there is so little re- will give better results a flection from so large than any other con- re- 6 an opening that 1 ical horn, no matter cannot build sonance o 400 000 000 2400 MOO 4000 400 600 400 2400 3100 4000 what its shape or up. Hence, there are Frequency Cycles Fregeettty- Cycles solid angle may be. at all, no horn peaks Le. n-122 CM 0penm. - 45 CM. Length -120 CM 0ptnim -60 CM The layman can com- which shows that a 14 =E MI.= prehend the signifi- loud speaker need not cance of such a state- '6 NÌÜlhII11113 necessarily have the 119M11111EMPIE1111I ment for it removes so- called "horn- reson- 2 .ifferitydna all elements of uncer- are 0 400 000 i000 2400 3203 4000 400 t00 400 2400 3100 4000 ance." Writers -b- Frequency Cyc es Frequency Cyc es tainty in our work incorrect in their ane Nodal Figure 3 and assures the pur- Diameter statements that horns as chaser of the best pos- are objectionable be- Curve snowmq var 24ä0n of sible horn of this a4i. said angle of conical horn resonance, cause of rhh lop of horn for type. This optimum if they mean all Tax1mo01 60440 output. horn has a length of horns. The dia- .a five or six feet and phragm peaks, as ex- a final opening whose plained in our March diameter is 12 to 15 installment are due to at -C- inches. modes of Morn Lengths inches different One NOW I presume the read- Frequency vibration. The three Circle 0 03 52 40 64 00 06 er would like to know mentioned above, Figure 2 Figure 4 Figure 5 why such a long horn which show up in is required. The these curves, are first, to this question is simple one find that the solid angle gets smaller answer the fundamental node, second, enough to comprehend, but perhaps one nodal and smaller as the lengths increase. nodal diameter and third, the not quite so easily arrived at. Hence. figure 2. The exact relationship is shown by circle as illustrated in means of the we give here the result of the rea- observe closely the curve in figure 4. By Now, if we by this soning we went through to get the figure 1, we can ob- acoustical law represented curves shown in the solid angle conclusion. The sound radiated by a these things mentioned. curve we can specify serve just acoustical results for any loud speaker unit along a conical small horn shows sharp peaks for best from the The length of conical horn we choose to horn, which extends so far while the big horn shows small, negli- is ever use. You may be interested to know unit that no sound energy gible, horn peaks. The sound output back into the horn, becomes is that this is the first time such a curve reflected from the two intermediate sizes more and more the smaller the solid the two ex- has ever been published and the reader greater than that from results of angle of the cone. If, however, we That is, these two fac- is obtaining the most recent treme sizes. research in this group of articles. make the angle too small and the neck tors, resonance and radiation, when our down can determine the op- too narrow, this law is broken exerting their united influence give We not only less for angle for any given length, but and the radiation becomes the maximum total sound output at timum in the solid angle. is can also determine the optimum further decrease the intermediate sizes. Hence, there we on the solid angle for a conical horn from our Having now settled an optimum size, or solid angle, as we length very long horn, we must output curves. In other words, we have de- for a very, call it, for which the sound cut it off at some point where fre- averaged for all the various there will be enough reflection quencies is a maximum. This is from the large end to build up an important law in loud speaker resonance and thus further in- design and its establishment was This opening n tensify the sound. of much benefit. is found to be from 12 to 15 We also established another inches and the solid angle such important law in connection with as to give a horn length of about A Parabolic these tests on conical horns. Caponential logarithmic five or six feet. Both larger and comparison of the curves for the smaller openings for this length four -foot horns shown in figure will produce less sound output - 3 with those for the one -foot because of insufficient A the former horns (figure 1) illustrates this x reflection and the latter because second law. We first compare of too great a reflection. 3 and the curves shown in figure I don't say, of course, that a 6- nyperbolK see that the horns with the Caterary llypocyclosd straight conical horn of the di- inch and 24 -inch openings are mensions stated above for the less efficient for loud speaker optimum sound output is the horns than the two intermediate horn. All I say is that it JA best sizes. Hence, there is an opti- will give the largest sound en- mum solid angle for this group ergy when averaged over the en- of four -foot horns. We find tire frequency range. If we are the less Cubic that the longer the horns, Cissoid tlyperbo c Sale more interested in quality than is this solid angle. In fact, if figure 6 in loudness, then we must take we select the optimum size for Illustrations of Mathematical Curves unusual precautions and exercise each of the various lengths, we

www.americanradiohistory.com 16 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 our ingenuity to produce a horn which preferably deal with will eliminate re- shapes such as here sonance or at least illustrated in order cut it down to a that we may have negligible factor. a mathematical bas- Then, for this re- is upon which to sonance we substi- study the results. Comm !rponential tute a maximum b cai Cissoidal Other shapes can be amount of radiation studied but no doubt obtainable. To se- those represented by sure this condition well known mathe- the writerrea must re- matical laws will fer the der to his give results which article on "The Per- are interpretable formance and The- and, no doubt, their ory of Loud Speak- performance ttypocycloidal hyperbolic will be er Horns," August, v Parabolic as good as (and 1924 issue Proceed- Figure 7 probably better Illustrations of Horns which Conform to well Known ings of the Insti- Mathematical Equations than) that for any tute of Radio Engi- of the unknown neers. I believe the theory "guessed at" shapes. of this tained by adding 135 to the preceding phase of our subject is too compli- The first of these horns to be con- one. The experimental facts fit very sidered cated to be understandable by the aver- nicely will be the exponential one. age reader. these theoretical predictions. In the photograph However, in figure 5 are This theoretical shown herewith an two curves. The law can be applied exponential horn is seen dotted curve repre- quite accurately to at the top of sents the sound radiation any loud speaker the picture. Its cross sectional at various horn and we can predict with shape frequencies along a straight much is hexagonal, made so for the purpose conical certainty its actual acoustical perform- of horn. The solid curve represents how ease of construction. For this rea- ance without even resorting to any son we the radiation curve is modified by the tests, coined the word "Hexponen- presence whatever. This is a valuable as- tial" to identify of horn resonance. When we set, of course, it, although the word remember, for it saves much valu- does not describe it. as stated in our April con- able time and effort. These exponen- tribution, that the ideal curve tial horns have been used for several for a Let us, now, go over to a consider- loud speaker is a straight horizontal years past, but the theory of their per- ation of horns of other shapes. formance line it is evident that even the pure In has only recently been radiation mathematics we have certain worked out by loud speaker is not perfect, well known the writer and inde- although curves to which names pendently by Dr. it is superior to one with have been given Slepian and Mr. marked resonance. for purpose of identi- Hanna of the Westinghouse It must be per- fication. Here is a list Electric fectly clear to any one, of some of and Manufacturing Co. The results who has read them : Exponential, parabolic, these articles, that the advancements hyper- of the labors of these last two authors bolic, logarithmic, sine, cosine, tang- are published we have made in the art of loud speak- ent, cotangent, catenary, in the 1924 Proceedings er production has come cycloid, of the American Institute of Elec- about after a square, cubical, trocoid, etc., etc. considerable amount of scientific trical Engineers, while the results of study and experimentation. the writer were published in the Straight Pipe 1924 Proceedings Before passing on to Radiation of the Institute consider of Radio Engineers. other shapes of loud speaker horns ; !1 (1 is. r J The it is worth while to recall radiation of sound from an to mew - Li exponential ory that theoretically the loud horn follows a differ- speaker ent kind of a law than horn peaks should occur 1 that for a at regularly tRponenhal Radiation conical horn. This is spaced frequency in- ' faponen6afRadiation to be ex- Modified by Resonance pected tervals. The peaks should be for their shapes are quite larger over different, as is shown in the initial or low fre- Frequency the photo- quency register graph where a large exponential than over the high- Figure 8 er .register. That is. the ratio horn is shown at the top and a of long maxima to adjacent minima should In figure conical horn is shown to the 6 are shown a group of left of the be larger over the range covered by the these curves. They writer's picture. In the follow, or are de- case of the exponential fundamental and the first few over- termined by certain, horn, the radi- tones well defined ation of sound at the than for the higher region. This mathematical equations. When various pitches ratio may ap- is indicated in figure 8 by be as high as three or four plied to a loud speaker horn, these the solid for the region of the fundamental, curve. The horn will not radiate any but laws determine the manner in which sound it should approach unity (1) for the area energy at all below a certain the changes as we advance from definite frequency. higher frequencies. A reference to the small end to the large This frequency is the curves end of the known as the cut -off frequency shown in figures 1 and 3 horn. The sketches for shown in figure the horn and is indicated will show both of these effects quite 7 illustrate cross sectional by the point, clearly. views of f. It was shown by the For example, in the case of some of the horns as they would dotted curve the four -foot ap- in figure 5, that the conical horn horn, the peaks should pear if constructed in accordance with con- be about 135 cycles tinued to radiate sound down to zero apart. This is these laws. These shapes are very frequency seen to fit the experimental interesting where it ceased to radiate, curves and the results obtained naturally. Below nicely. Furthermore the peaks should with some the cut -off fre- of them, I imagine, would quency, then, be located at about 200 cycles, 335, be of an exponential horn highly stimulating to the imagina- the conical 470, 605, 740, 875, 1,010, etc., cycles. tion. one is a superior radiator That is, each succeeding and the intensity of the low frequency peak is ob- In our work, of course, we should (Turn to page 66)

www.americanradiohistory.com Here's a commendable layout of this remarkable WIRELESS AGE Receiver By K. M. Macllvain

I sent him a circuit diagram of the the filament control rheostats. One is direct coupled radio -frequency type of in the detector circuit, another in the receiver using "D "-Coils. radio- frequency amplifier circuit, and Then he went ahead and constructed the third is in the filament circuit of the set, allocating the apparatus in the the audio -frequency amplifier tubes. way that he thought was most ei- The little pilot lamp that you see in cient as well as artistic, and I must the center of the group of filament say that it is the best "D" -Coil lay- control dials is connected across the out that I have seen to date. filament supply leads and gives you a The panel lay -out in particular is visible indication of the fact that the very good. Three of the large dials tubes are turned on. This is simply are located on the shafts of the tuning a flashlight bulb inserted in a socket HE accompanying pictures are condensers. One of the large dials is behind the panel and a suitable re- of a "D" -Coil Receiver that was on the shaft of a .00025 mfd. variable sistance is connected in series with it T constructed by Professor E. B. condenser which is used as a blocking to limit the current through it so that Rollins of the Tufts College Engineer- condenser in the second stage of ra- it won't burn out too quickly. ing department, Tufts College, Mass. dio- frequency amplification. Making This is a very appropriate element Some time ago my old friend and this condenser a variable element in in a receiving set, because there are instructor wrote me that he would like the circuit lends a little more flexi- many instances where the set may be to build a "D"-Coil Receiver and bility to adjustments. This tuning tuned to a particular station and the asked me if I would send him a dial is the second from the right. operator of the set may leave the schematic diagram showing the latest The three smaller dials in the cen- room for a few minutes. developments in this popular circuit. ter of the panel are on the shafts of (Tun to page 30)

Rear view of Professor E. B. Rollins' "D- Coil" receiver 17

www.americanradiohistory.com The relationship Fred Smith. studio director of WLW, broad- of Ilo to the In- casting one of a series of ternational Lan- Ilo lessons AIL guage Problem `By Dr. alax Talmey

Much correspondence has brought out the fact that there is a widespread desire among radio fans to decide the merits of !lo for themselves. They can only do this by being told what will be done with this Language Auxiliary International if it becomes recognized among radio societies as the only growing auxiliary language. The argument which has hitherto appealed to a majority of radio clubs, has been has this or that scheme a majority of radio users in its "iP This favor is now being displaced -after news of the refusal of the English Radio Club convention to adopt Dr. Zamenhof's scheme -by a new standard. This standard requires exactness of expression, ability to follow European languages closely in translation and the spirit to take the amateur into its confidence by forming new expressions. It is well illustrated by the fact that Dr. Tal ney as Hon. President of the North American International Language Society which has reserved the right to work out new !lo words when needed, without permission front the central "Academy" in Europe -has enriched the language with more than 200 words and prefixes. These are not official and need only be tried out by the amateur. .Vo period of stability -where discussion is interdicted -will help transoceanic radio code or speech. The international word "brodkastar" is a good illustration of this. It was used, because it is needed. There are synonyms developed by O. C. Roos and radio amateurs in Europe. but these only enrich the language. Our readers will soon be able to decide whether improvement or stand - ardization on forms, offers the best ultimate solution of a logical, rich and simple A. I. L. Dr. Taim ey and Dr. Koopman, Librarian of Brown University, are both Honorary Presidents of the "N. A. I. L. S." and have enlisted linguistic educators in Columbia, N. Y. U. and Harvard in support of the new A. I. L. features.-EDITORS.

IT HAS been mentioned in our preceding article on the knew very little about the logical principles which must Auxiliary International Language (AIL) that all solu- prevail in the construction of the AIL and which we shall tions of the International Language problem, particu- treat more in detail in larly the projects a future article. This is the reason of Dr. Zamenhof and of Ido, were why their devices could not withstand deemed unfit for the role of the scrutiny, but failed .\IL by the Committee in spite of initial practical successes when of the Delegation. Its preliminary decision criticism was read as fol- brought to bear upon them. The Permanent Commission, lows (Compte rendu. pp. 25 -26) : however, was well informed about "The Committee has decided that none those principles of the languages submitted and applied them for exam- strictly in carrying out the ination can be adopted with modi- Ilo Lessons Broadcast task en- trusted to it. Since it also resorted to fication. . . . It has named a Per- DURING the fall of 1924 WLW extensive and radical "modifications," manent Commission with of the task of the Crosley Radio Corpora- the result of its labors, the Language studying and fixing the details of the tion promoted an eight -week course of the Delegation (LD), was en- language which will be adopted." of lessons in the international lan- an guage, Ilo. tirely new system differing greatly Reasons of expediency, however, Fred Smith, studio director of WLW, conducted the from all preceding solutions of the In- induced the Committee to give to the classes. Some 450 students en- ternational Language final decision wording rolled. It is safe to say problem and a apparently that many from its faulty basis, the projects favorable to Dr. Zamenhof's thousands listened regularly. of project Zamenhof and of Ido. The combined which was "adopted in principle under This experiment indicated three things: in the first place painstaking w o r k, extending over the reserve of modifications to be exe- it proved that language may be taught suc- many years, of a number of serious cuted in the sense defined by the report cessfully by radio. The second able students of the International Lan- of the secretaries and by the project thing we learned was that Ameri- guage problem, such as Dr. L. Cou- of Ido." ( Compte p. cans in general are not yet keenly rendu, 26). interested turat, Paul de lanko, B. Joenssen, Those wise in the daily life, and, con- enough were not misled sequently, the daily language of na- Prof. O. Jespersell, Prof. L. by Pfaund- this decision. For "adoption in tions far away on the other side of ler, Dr. Ignatz Hermann, the writer's principle" is the ocean. But merely a polite form of radio broadcasting humble self and others, has gradually rejection, which, in this case, had been is developing with such phenomenal rapidity developed the present Ilo out of that made even stronger by explicitly add- that it is easy to imagine the early arrival of the time when system ; "removing" (see below) it ing that "modifications in a certain international broadcasting will be as still further from those projects. sense" would common be executed. Through as national broadcasting. Nobody has ever maintained that Ilo "modifications" When this day comes it must bring an object may be cre- is reformed Solresol, Nov- Latin, Vola- ated in which one would look in vain as a companion a common language, and so far as our experience teaches pük, etc. But well -meaning Ilists for traits of the one "adopted in prin- us, the most acceptable of languages themselves, concerned chiefly ciple." about the for this particular use is Ilo. propaganda for Ilo, often assert that Language inventors up to 1907 the latter is the simplification of Dr. 18

www.americanradiohistory.com 19 MAY, 1925 INTERNATIONAL LANGUAGE PROBLEM with by the Permanent Zamenhof's project. Commission in the elab- Thereby they are doing oration of the Language the cause of the Interna- of the Delegation. 'In tional Language idea in this regard Prof. Jesper- general and of Ilo in sen remarks (Progreso, particular more harm V. p. 460) : "Almost than good. For a system every criticism directed derives more detriment against the Language of than benefit from being the Delegation tends to represented as having remove it f rom Zamen- close relation to another hof's project." system which has been * * * discredited in the eyes of the public through the EDITORIAL NOTE judgment of the most "Progresso" was the capable experts on the official organ of the whole subject. Academy and Central For the proper infor- Committee of the "dele- mation. of the public the gation" between 1908 above assertion needs and 1914 inclusive. It some examination. The has been succeeded by vocabulary in all modern "Mondo." There a r e solutions of the Interna- over 4000 pages of tional Language prob- careful analysis, con- lem conforms more or struction of trial tests less to the principle of of new words for the A. I. L., together with internationality, which Dr. M. Talmey, Dr. L. B. Woodcock and A. Rostrom on an occasion when conver- requires that the words sation was held exclusively in Ilo exhaustive discussions of of the International Lan- the same. guage should be as much as possible international ; i.e., This seems to be the proper spirit of development in common to the principal living languages, and that no order to avoid making mistakes permanently ineradicable word may be arbitrary. Zamenhof's system violates that by too many followers at the early stages. It is all the principle extensively. Nearly 40 per cent. of its total vo- truer for radio terms. -Ed. cabulary flagrantly conflict with it. Nov -Latin, Universal, * * * etc., and especially Neutral, are in harmony with our prin- Ilo is being more and more improved. This holds true, ciple to a far greater extent. It follows that if Ilo be at all in particular, with the improvements proposed by the writer the simplification of some previous system, it would be in the last few years (Temi, Raporti) and practically ap- more justified to call it "Simplified Neutral." This view plied by him and his correspondents who are able Ilists, was also held by Dr. Couturat, as stated in our preceding foremost among them being Dr. L. B. Woodcock of Scran- article. The original international words common to both ton, Pa., whose delightful letters in advanced Ilo are apt to Ilo and Zamenhof's project do not justify, therefore, rep- convince any student that those improvements are making resenting the former as the simplification of the latter. a real, highly efficient language out of the work left un- Another common feature is the derivation of words by finished by its pioneers through the cruelty of fate.' affixes. This idea is not original with Dr. Zamenhof, but The assertion that the language of the Delegation was occurs in the works of much earlier authors (Schipfer, the simplified project of Zamenhof was justly repudiated 1839 ; Pirro,1868.) Finally,thethird common characteristic, by his followers. This is what they used to say in this which consists in making the parts of speech recognizable respect without mincing of words ( Progr. II. p. 749) : at first glance through invariable endings, has been em- "This is a ruse to mislead the faithful ones : the Language ployed by language inventors long before Zamenhof of the Delegation has nothing in common with Zamen- (Faguet, 1765 ; Rudelle, 1858; Eichhorn, 1887) . Of the hof's system, and is an entirely new language which no- fourteen grammatical endings of Ilo only eight occur also wise deserves the name of the latter." If this be true in Zamenhof's device, and three of these of the Language of the Delegation it is have already been used by Faguet as far certainly more true of improved Ilo. back as 1765; another one, -e for the ad- Enthusiastic Ilo propagandists who make verb is Latin and Neutral ; a fifth one -o the above wrong assertion merely misunder- for the nouns is very common in the Ro- stand both the sense of the final decision of manic languages. The linguistic details the Committee and the similarity between Ilo original with Dr. Zamenhof and contained and Zamenhof's device. The former has also in Ilo are, therefore, but very few, been clearly explained by Dr. Couturat namely, three grammatical endings and a (Progr. II. p. 277). small number of affixes. In every other re- There are two systems in language con- spect there are between his system and Ilo struction. 'In one the gender of the words. differences so substantial and numerous that in the other their grammatical rôle is made the two systems are very distinct one from recognizable through endings. The second the other, as distinct, for instance, as French system has been employed by Dr. Zamen- is from Italian or Spanish, although, like hof, and the Committee also preferred the thesé languages, those two systems resemble system of grammatical endings. Thereupon one another a great deal, owing to a large 1. Dr. Couturat died through an automobile accident number of common roots. in the fall of 1914 at the age of 45. The excellent linguist and best Ilo writer of his time. Paul de Janko, The project of Ido contains to a great died at Constantinople during the war, and Prof. L. extent the same faults as that of Dr. Zamen- O. C. Roos, President "RAILS" Pfaundler at Graz in 1919; etc. and General Manager the "N. A. hof. They have been almost done away I. L. S." (Turn to page 27)

www.americanradiohistory.com A Real ONTROL NE Receiver A three- section condenser makes possible tuning a five -tube set with one control 'By Sidney E. Finkelstein A. M. I. R. E. THE most popular type of re- MATTER OF DESIGN member of the coils. They are wound ceiving set today is the tuned This feat was not accomplished as on quartzite rods which are held be- radio- frequency receiver and to easily as might appear, but tween two rings of hard rubber, date there are many varieties. after con- thus All fol- siderable work on the part of engi- forming a cylindrical cage. With this low the same fundamental circuit neers it has been made possible. type of winding form the principles. The coil is vir- When two stages of tuned one controlling factor in producing a tually supported on air and only makes radio frequency are employed and the receiver with one control is the design contact with glass, which is one of the construction details are in keeping of the radio frequency coils and the best of high frequency insulators. The with good engineering practice, all the variable condensers. The variable con- windings are so designed that no cen- points that make up a good broadcast denser must be low -loss and must be tralizing is necessary, thus simplifying receiver are available. a precision made product if it is to the construction of the set.

Practically all the battery leads are kept hidden below the socket shelf. The rheostat leads, of course and the tuning condenser leads are run in the shortest straight -line route

This type of receiver possesses function properly. The one used in PARTS REQUIRED selectivity, volume and faithfulness of the set below is really three condensers Probably the most reproduction, but has one disadvan- in important unit one, that is, there are three separate for this is tage, that is by set the Bruno "Three -in- expressed many who sets of condenser plates. The three one" variable already have a set of this kind, condenser, and since and stator sections are insulated from one there is but one type that is the customary three dials for another, of this condenser while the rotor plates are on on the market at this writing, the radio tuning. Because of this disadvantage the same shaft. This unique construc- many fail fan should not go wrong in selecting to obtain the best that is in tion insures that the three condensers the right their set, as they not one. The radio frequency do seem to be are synchronized, thus tuning each coils described able to master the manipulation above are made by the of the portion of the circuit alike. same concern and are three dials. In the radio designed to be receiver de- The radio frequency coils are also used with the special condenser. scribed below, a great step toward the very important in this set and have In order to build the set as refinement shown of the tuned radio receiver been designed to possess the highest in the accompanying illustration, new has been taken by reducing the tuning possible efficiency. These coils em- five "gang" sockets will also be re- controls to one. body a new idea in the supporting quired. The audio transformers 20

www.americanradiohistory.com RECEIVER 21 JiAv . 1925 ONE -CONTROL

A +6

B <45 Rso common rotary plates are tunes the three radio-frequencyi transformers simultaneously. The This shows how the triple-stator variable condenser ta Á battery In wiring the sockets. the arrange- should be of high quality, as well as two inches from the bottom. This arrangement is very striking and is a ment that makes wiring easy is to the rest of the material listed: right socket, when inches. departure from present layouts. make the extreme One panel, 9x24 rear of the set. the first 20 -ohm rheostats. Next, the coils and sockets and looking at the Two radio frequency socket. The centre One five -"gang" socket (or five transformers are mounted in the rear of the panel. This may be accom- socket should be for the second stage standard sockets). and the one on the Three Bruno non -oscillating R. F. plished by using the customary base- of radio frequency board or by the use of special brack- extreme left end the detector. That coils. first condenser ets and sub-panels, which is well next to the detector is for the One Bruno ultra -vario frequency and the re- or four in one). worth the extra work and is the way stage of audio (three in one maining socket serves as the second audio transformer (5 -1 ratio). recommended by the author. One audio frequency amplification. One audio transformer (3 -1 ratio). WIRING stage of It will be found that this arrange- double circuit jack. circuit One Needless to say, the filament ment makes the wiring exceedingly One single circuit jack. Care should is the first to be wired. simple, and if done in a workmanlike condenser (.00025 mfd.). fila- One grid be taken to get the polarity of the manner will present a fine appearance. megohms) . One gridleak (2 ment leads correct, as this is so often should be made, switch. After Well soldered joints One battery overlooked by the radio fan. only resin core solder and a hot Two special brackets for sub-panel to test using this is done, it is a good plan soldering iron. and "gang" sockets. this circuit by connecting the filament One micadon (.00025 mfd.). battery to the set an3 inserting a tube RECHECK CONNECTIONS Six binding posts. in each socket to make sure rheostats, When the work on the set is fin- check CONSTRUCTION battery switch and socket contacts are ished, go over the wiring and with the circuit diagram The panel layout is exceedingly sim- all right. it carefully and see that each lead is correct. This ple, there being but one control. Thus Proceed with the rest of the wiring, done, connect the batteries to the set. it is possible to give the panel a simple making sure to connect the radio fre- The special quency coils correctly. The antenna "B" battery voltages should be forty - and dignified appearance. ninety volts should be mounted tuning coil, or first radio frequency five for the detector and tuning condenser remaining tubes. Six volts in the center of the panel, from left coil, is the one with the largest num- for the are used for the "A" battery when to right and just above the centre from ber of primary turns (eight turns). rheostat dials It should be remembered that the grid 201A type tubes are used. top to bottom. The two nec- each side of the mas- return leads from each coil are con- There are no tuning directions are placed one on dial to turn. these being on the nected to the rotor of the condenser. essary as there is but one ter tuning dial, slowly and then line. The jacks and which is a common connection for each Rotate this tuning dial horizontal centre station, that come in. battery switch are placed in line about stage. log the

mounted on the panel and the tube sockets on the An excellent view of the completed receiver showing the relationship between the instruments sub -panel

www.americanradiohistory.com Cross Word Contest First Prize -3 -tube Wireless Age Radio Receiver. Second Prize -Two 201A Radiutrons. Third Prize -Pair Brandes Headphones. Fourth Prize -Ham- marlund Condenser. Fifth Prize -Accuratune Dial. Next Five Prizes Annual subscription to WIRELESS AGE -THE RADIO MAGAZINE.- HORIZONTAL. -Insect VERTICAL. 1- Eurupean blackbird 1 -South American republic 6- Existing In name urn) 2 -Lays wager 6- Japanese soin (Pl.i / i// '8pp 3-- Girl's name 9 -The twelve hods 4-Place when money is coined 11-Upright L 1 . 3 f--1 5-- Facility 13- Prepare for publication 6-One who makes will 15 -Saucy 7 -Sends out ether waves 16 -To cut with an use IA I 8 -Upper face 18- Girl's name 7 16- Genuine; honest 20- Introduction to a book , 11- Ridicule 22- I1ackney- coedres (Fr. 12 -Exist 25-One who tells i ill ? 14- Aquatic bird 26- Aerial. II ii Ti 15-Dlt Da Da Dit; Dit Da DR; Dit 28 -Left side of a ship 2 li Da Dit; Da 29-Collector of electrical /s... ail 16-Collection of cattle 31- Excavates II 17- Broadcasting station In Alabama 33 -Alike 20 21 f7 Iranian 19- language of ancient Persia 34- Possessive pronour 20-Cut away 35- Employs 1S.... ai ail 2l -To put together radio parts 37- Stupefying drug 23- Non -conductor of electricity 39 -Facts granted gil 24- Uttered 40- Belonging to ... 25-Wandering : pastoral 33 ..38 11 -P enesc aill 27- Self -exaltation 42-Printer's measure ... 3y Willi .NV .. 39 28- Father (Latin) 43 -Acid lute ld ii al 30-Bar 44- Surrender la VS 4 +B IN 32 -Short interval 46--Da Dit Da Dlt; Dit Dit Dit, a . NIS0 EI SI 33- Ancient privilege to hold court Da Da Da; Dit Da Dit . 34 -High Frequency Current 49- Extent .W1 VI Mil 36 ..Zil 12. -Body of water 52- Pigmente used In painting 38- Sooner than 53 -Dress ail .. -L III.) 45- Exclamation of wonder (Ob.. 55 .. i -An American swan %.. 47 -Part of motor at rest (PI.) 58 -Lead wire Inserted in circuit 48- Embellishment 39 -Total Impedance in circuit .1 iiii 50--- Confidence 61- Absurdity 51- Religious recluse 63- Toothed 52- Earnestly employed 64 -First circuit ..70 54 -Moved quickly Judicial .. 65- sentence of condemnation í.. 56- Encounter 66- Attempt 57 -See unexpectedly 68- Attendant (Fr.) `I 58- Evolved by ignition 69- Private srhr.d tenting. abbr.I ei, ; 60-D Da Dit; De Da De; Dit Da Da Prefix ... 71- meaning before 11111 it 72- Frozen vapor 7 \Ii 62 -Barrel or cask 74 -Cut into rubes /,' '7 al 67 -Reply prepaid radiograms (Code) 75- Sharing the crown of the head Io 1 70- Without means 77- Suaidiury electric circuit ' lid 71- Breezy; gay C8- Nothing 73 Da De ; Da ; . -Dit Dit Dit : Da Dit 79-Cale for Paid Radio Message 74- Composed of two 76-Glide or slide

DIAMOND C ROSS HenoseDittusC m Prize Conditions -Correct solutions accompanied by the best 50 -word letters suggesting WIRELESS AGE will improvements in be awarded prizes in their respective order as specified above. The editor of WIRE- LESS AGE -THE RADIO MAGAZINE -will judge the letters legibility. on the basis of practical value, style and Closing date May 15. Solution will appear in June and winners in July. MARCH WINNERS. MARCH WINNERS. Abbott, L. S., Pompton Lakes, N. J. SOLUTION TO APRIL' Anderson, Millington, Lopez, Lester, Buffalo, N. Y. Geo., N. J. Meagher, Elizabeth L., Miami Beach, Becker, Otto R., Milwaukee, Wis. PUZZLE Fla. Blakeley, Kenneth F., Rockford, Ill. Bongura, Winners will be Michels, Clarence E., Hampton Falls, Mrs. N., Jamaica, L. I. announced in N. H. Brink, Harvey, Round Lake, N. Y. June WIRELESS Mochary, Brodhead, E. F., AGE Dennis, Bronx, N. Y. Galveston, Tex. Mohn, Leon J., Elmhurst, L. I. Burritt, L. B., Waterford, N. Y. Rf A S T /4 ti M© T E R D I R E C T Morrison, D. W., Midvale, N. J. Coleman, A. E., Watervliet, N. Y. Munson, Leroy Dayton, Mrs. E : i P E D L A TG R P A C E S E J., Ft. Edward, N. Y. W. B., Bloomville, N. Y Murphy, Mrs. C. W., Westfield, N. J. De Hays, 5 o D R I E D N S William, Elkhart, Ind. F T PaC TRE Nicholls, G. W., Boston, Mass. Devine, Charles H., Roxbury, Mass. O T D T E A R S E S o A R 5 T A T De Vizio, Obrey, Amos, Springfield, Mass. Joseph, Bronx, N. Y. L E c T R I C I T© T/ H E Diehm, R O O F E Orre, E., Bronx, N. Y. Dewey S., Coatesville, Pa. DONE LEIRED Paul, A. W., West Rutland, Vt. Dooley, Mrs. J. F., Albany, N. Y. /T/NOR SPAR O R E Peck, Miss Dugan, C O R A L T R I Z(0,6 B D Inez M., Lyme, Conn. A., Mechanicsville, N. Y. Phillips, D. V., New York Earle, C R D I O E 8 E 5 O V N D c City. Mrs. J. P., New Haven, Conn O n Q Pohl, J. A., New O L D S Orleans, La. Eckerson, A. A., Rutherford, N. J. O E Y / E L .7>s A 5 d AIR Pray, Alfred R., Cleveland, - O. Entwistle, Olga E A D D S _DAY E., Wollaston, Mass. V R N O N C E A T Rooney, Mrs. A. A., Buffalo, N. Y. Farwell, Oliver P., New York C T U G S City. P R o N G C O N T A P L Ryan, John, Wynsskill, N. Y. Fetcher, Clair, Detroit, Mich. L O R E A R Y E T C O R E B I T Sharpe, Fred S., Flushing, N. Y. Ford, R. O., New York City. T H R E A T c -A Sprague, H. M., Trenton, Ont., Can. Foster, W. S., Montclair, N. J. ER N A G O Y A R T A E E T A/t E N L Spring, Harold A., Grand Rapids, Frank, James, Jr., New Haven, Conn. R R A P I D P Y Mich. C N R N E T A L Granum, J., East Lansing, Mich. ¿ 4 1 /1 5 E R R Ten Eyck, A. C., Elizabeth, N. J. Haines, Clyde T., Baltimore, M O O R R E S I N Md. T O G A S T R O T Van Name, C. Eldredge, Port Rich- Haring, Walter S., Yonkers, N. Y. A B E L T R A N S P O R II E R 5 A L E mond, S. I. Herr, Henry, East Rutherford, N. J. L E D C H E S S t/ S P E E D L IS Walz,' L., Brooklyn, N. Y. Johnstone, R., San Francisco, Cal. Wickersham, John, South Ozone Park, Kelsey, E. P., Watervliet, N. Y. O S A L O N E A s p S L A I N E N w R D S L E E P S P E N D L N. Y. Lanckton, H. W., Perry, N. Y. S A Wolverton, Dr. W. C., Linton, N. D. Long, H. H., Chicago, Ill. S O L E n N P R E S A G E S T E R N S Zeh, Arthur P., Beacon, N. Y. 22

www.americanradiohistory.com 4erial. Tacks -,t

N T ,

. s to Ground ;.i.1 i

Figure 1 Figure 2 THE OUTDOOR AERIAL THE INDOOR AERIAL Outdoor Indoor ERIALS Loopand 'By William 7. Crosby

was a N AERIAL is frequently the Of course this freak pure and most neglected part of the radio simple and it could never be dupli- fan's equipment and yet it is cated again no matter how we tried. probably one of the most important This, naturally, might lead one to units in the whole outfit. A glance at believe that galvanized wire is the best any of the roof tops in a city will show for an aerial, but if this is so, it is just how little attention is paid to the against all the theories of radio and, aerial after it has once been put in in the long run. better results will place. Apparently many of these have probably be obtained with a copper been completely forgotten with the re- aerial. Usually number fourteen bare sult that poles are bent and wires sag copper wire will stay up the longest in a way which is sometimes positively and give the best service. The strand- dangerous to pedestrians. In one or ed wire, so popular, has to be put up two cases poles have come down in quite carefully, because it is so flex- wind storms, injuring people in the ible, that connections will pull out, un- street and a recent case in the Bronx less soldered. led the landlord to put a ban on all Gold plated aerial wire is, in our aerials on his buildings. The result estimation, one of the useless things was that many innocent fans were of radio. Silver is generally given made to suffer for the shortcomings most any kind of wire may be used in credit for having the lowest resistance, of only one of their number. such an aerial. The writer has carried with copper only a little higher. Gold, and, It is just as easy to make a good job on experiments along these lines on the other hand, comes considerably of the aerial and at the same time it believe it or not, on a one- hundred- above even the copper. Gold has only iron will give far more satisfaction to foot aerial made of galvanized one advantage, and that is that it does know that it is going to stay in place wire, size number sixteen, KGW in not corrode, but we believe that the no matter what happens. Quite fre- Portland, Oregon, was heard on a one added resistance will more than offset quently the sagging aerial will change tube regenerative set! any advantages to be gained by the its characteristics to such an extent non -corrosive feature. that signals from distant stations will ao° The ideal aerial for all around work fade in and out quite badly. This is appears to be a single strand of num- due to the change in tuning caused by ber fourteen hard drawn copper wire. the aerial wire swaying back and forth. one hundred feet in length and reason- There are only three different kinds ably high. The higher aerials are of aerials, outdoor, indoor and loop. /I, usually credited with picking up more Each seems to have many variations static than the lower ones, but they and every one has its particular use. are better for extreme distance work. Let us take up the outdoor aerial An aerial of this kind should extend in a straight line with the lead -in from is the most satis- I r, first. It generally ïbetween6 turns end. The aerial which has sev- factory with any radio set with the to Set one j eral bends in it, together with the exception of those receivers which are the center or somewhere especially designed for loop work. SPIRAL lead -in from Contrary to the general opinion, al- LOOP (Turn to page 601 23

www.americanradiohistory.com 1' O OW-LOSS COILS for the Direct Coupled Regenerative Radio Frequency Receiver described in the APRIL WIRELESS AGE -How to construct them `B y K. ¿M. facIlvain TIlE last issue function I\ of the resistance. Power dielectric, namely, a substance through of this magazine, I losses increase directly as the resis- which it is impossible to set up a con- described a radio - tance is increased. tinuous flow of frequency receiver electricity by the ap- hav- Now to cite the second fundamental plication of a constant i( ing direct coupling in fact electric field. that we should know. That is what we want, but sad to say. the input circuits of the 2. Insulating materials in the field it is something we cannot have for the first two radio - frequency of a coil will increase its radio -fre- very simple reason that no such sub- 9 amplifier tubes. This quency resistance due to "dielectric stance exists. feature was Free space may be con- augmented absorption." sidered a perfect by the introduction dielectric and in ac- of So you see, it is not metal alone cepting this conclusion we do not regeneration in the plate that con- should be kept out of the field of tradict the statement which starts this 8 circuit of the first tube a radio -frequency coil, but dielectrics paragraph. Free space is not a "sub- instead of in the detec- as well. It may be that you don't stance" plate and differs from a "substance" tor circuit as is know what the term, "dielectric ab- in that it usually does not contain electricity. 7 the case. sorption" means, so for the benefit of All substance contains electricity. The purpose of this those that are not satisfied with mere From the foregoing analysis we see article is to tell some- terms alone, I will just give you a that we want a coil wound on a per- thing of the inherent short description of its meaning. fect dielectric and we want 6 characteristics to keep of bona Every substance is a conductor of all imperfect dielectrics out of the fide low -loss coils and to electricity, at least to a slight extent, field of said coil. The perfect explain coil, the method of but some substances are far better con- then, should be a self -supporting coil, constructing ductors 5 the coils than others. A substance in (Turn to page 68) used in the above men- which a con- tioned receiver. stant electric There are two funda- field produces 4 mental facts about ra- only a slight flow dio- frequency coils that of electricity, is we should know right at called an "elec- 3 the start. tric insulator" 1. Metallic objects in or a "dielec- the field of the coil will tric." Due to increase its radio -fre- the fact that all 2 quency resistance, due dielectrics a r e to the fact that said imperfect from metallic. objects will an insulation have eddy- currents in- standpoint, they duced in them and these will, when eddy-currents will absorb placed in the power from the circuit. field of a coil To prove this, just try one simple carrying cur- experiment. When you have your re- rents of radio - ceiver in operation, tune in a station frequency ab- and put it on the loud speaker, Then sorb energy take a pen -knife or a pair 4f pliers from the cir- and insert either in the center of the cuit. If they magnetic field of one of your tuning were perfect, coils. When you note the decrease in they wouldn't. output volume it should convince you This is what is of one thing and that is that "metallic termed "dielec- objects in the field of the coil will in- tric absorption." crease its radio -frequency resistance," What we want although I don't know whether you in the field of will be satisfied about that "eddy -cur- our radio - fre- rent" theory or not. quency trans- It might be well to note right here, former, then, is also, that power losses are a direct a 100 per cent. The form used in winding the coils 24

www.americanradiohistory.com Broadcast Impressions 'By fd Y(anda ll.

Wilfred Glenn, singing the "Rosary" at Eveready Hour of Music, broadcast from WEAF and a number of other stations Joseph Pasternack, Director of Victor Concert Orchestra, broadcast from Station WEAF

Ethyl Hayden, singing "Mighty Lak a Rose" in Eveready Hour of Music, broadcast from a chain of stations

Rose Bryant singing "The Little Toy Chas. Harrison, singing "The Quest" Dog" in the Eveready Hour of Music, in Eveready Hour of Music, broadcast by Ethelbert Nevin, broadcast from from Station WEAF and eight other WEAF stations

Reinald Werrenrath, genial and robust baritone, sang the "Gypsy Love Song," "On the Road to Mandalay," and the prologue to Pagliacci, in the concert by the Victor Talking Machine Co. Mr. Werrenrath is of the Metropolitan Opera Co., a graduate of New York University and a member of Psi Up- silon. At college he was a star swim- mer and he still is

"The Man in the Silver Mask," tenor soloist with the Silvertown Cord Orchestra -His name is never divulged, Max Jacobs, leader of Orchestra, and he comes masked to the studio in Eveready Hour of Music, by Ethelbert a closed limousine; even the announcer Nevin being kept in ignorance of his identity 25

www.americanradiohistory.com RADIO ABINETS By H. T. Strand How to build an artistic housing for your receiver, loud speaker and batteries

THIS article Is intended for those where the dowels are who have a fair knowledge of to go, about half way in and cutting woodwork and a little cellar or off, leaving about %" out. Now attic shop and the general tools usu- place corner post up to meet brads using ally necessary in such a place. The a 3/16" piece for a guage to writer made the cabinet described, un- set panel back from face of corner post der those conditions the stock for the that much, and when all is ready give main parts of the cabinet being edge of panel a sharp blow to make milled out to size by the local mill, brad impressions on corner post, which gives accuracy to the start of and after pulling out brads you will find the the job. It is made entirely of ma- exact places to bore your holes for hogany. To economize so called the dowels. Use a sharp auger "shorts" can be obtained at a much ha" bit for this and be sure and bore less cost per foot than regular lengths. the holes straight. This operation can be repeated One inch rough stock by widths up on all four sides, and then to 15" was selected, and some 3" or the dowels and hot glue can be used to advantage. 2" stock for the corner posts and Figure 2 and 3 give milled down to for panels. an idea on arranging the g" 5/" parts. for doors, h" for top rails, 3/16" for When the three cover top and I%" square for corner sides and the front posts. rails have been doweled, glued and clamped, put it away to set All stock can be cut to size by the for a day. The next job is the mill except cover top, top rails and h" top rail, I%" wide, that finishes doors, and these had best be fitted by off the top. hand later. The finished cabinet This is glued and bradded down, The first process mitreing the corners and slightly is to dowel the posts. This can best be done by side and driv- rounding the edges, 3/16" projecting back panels to the corner ing short brads, at the four places (Turn to page 62)

Gumwood moulding used_ of ormiers inside finish t.f) PANEL "a) LAYOUT t Horn made from wood .. TOp-12}xl3i'. Y enflamed in egg mites,: Directors of gram ;,- 2 aTSO Sn'C.fs tV fOr B Ba' tan ,

I fnoles drilled 16, %G and maple dowels - 'Oral ...... glued in to pre- -Mired at Corners -. vent warping ', Figure 4 j Top Rail w ,

Ari panels set in Doors r i from 'ace of corner posts

¡i re Corner Post 9x61 I ceued in I r ¡¡ LeageT" far Panel , Dowels - x'.. Ñ ll, 1 isM=licial.:._,' SIDE DETAILS Face of Horn ana 4s:_crrsr Same for back ,,t except closet set In for - jjI!_1 Tai" wide panel tnickness of doors id ll , 11` StetROd of holding xeli 'slats of horn 44i-44r44444 \J' J V LI* il i Leisttery Closet -'Saw cuts Dowel" Legs are turned ISf separate ana put on Dy dowels Figure 2 ana glue Figure 5 Figure 3

Constructional details of the radio cabinet

www.americanradiohistory.com LANGUAGE PROBLEM 27 MAY, 1925 INTERNATIONAL they Language that project the resemblance is still greater because Auxiliary International have in common some affixes and grammatical endings. notice (Continued from page 19) The enthusiasts do not know all this ; they simply and therefore honestly believe that the sympathizers of the doctor in the Committee argued the great resemblance it would be unfair not Ilo is a simplified project of Dr. Zamenhof. that if that system were adopted, in every- in the final decision. Through A few phrases and sentences that may occur to mention his project two systems sentimental arguments they succeeded day life will best show the relation of these "such moral and text below. the wording of the known decision. This to one another. See the three -column in obtaining illustration of Ilo by translating explains in which sense the Committee adopted that pro- Finally we shall give an has adopted the sys- into it an exquisite piece of English literature. It will ject; it means that the Committee in endings." It cannot be expected that be seen that the beauty of the original is fully preserved tem of grammatical only with improved Ilo, should understand all this. They take the de- the translation, which is possible enthusiasts is another important f ea- at its face value. but with no other system. This cision former from all previous solutions is bound to exist between Ilo ture distinguishing the Considerable similarity problem. because of the large number of of the International Language and Zamenhof's project to look up the rule of grammar to all modern solutions of the The reader is reminded Romanic roots common in the preceding article shortly Language problem. They all resemble one and pronunciation given International illustration. another very much on this account. Between Ilo and before the Zamenhof's Project English Ilo Omna co. Chio tio -chi. 1. All this. Chiujn tiujn kiujn. 2. All those whom. Omna ti quin. omnube. Chiam kaj chie. 3. Always and everywhere. Sempre ed ne plu fore. Ghis tie -chi kaj ne pli malproksime. 4. Until here and no further. Til hike e hike tu facas un eroro. Char ech tie -chi ci faras ero. 5. For even here you make a mistake. Nam mem omna co. Char ci forgesis chion tion -chi. 6. For you forgot all this. Nam tu obliviis hike? Chu ci loghighas tie -chi? 7. Do you live here? Ka tu lojas lecioni? Chu ci scias chiujn ciajn hodiauajn leci- know all your lessons of to- Ka tu sayas omna tua hodierna 8. Do you ono jn ? day? Shi ghus sciighis chiots. 9. She just learned everything. El jus saveskis omno. Char shia vocho shajnis shanghighi. 10. For her voice seemed to change. Nam elua voco semblis chanjar. Chu shi chiam rughighas? 11. Does she always blush? Kad el sempre redeskas ?' little white El havis la maxim gracioza mikra blanka Shi havis la plej graciajn malgrandajn 12. She had the most lovely bela lambin() which a beautiful girl can pedeti, quin un bela puerino ever povas blankajn piedetojn kiujn dainty feet havi. ever have. havar. nur povas nuda, kaj tial shi en- all nude and therefore Ma el esis tote nuda, e pro to el envolvis Sed shi estis tute 13. But she was volvis sin en siajn densajn longajn harojn. she wrapped herself up in her thick su en sua densa longa hari. long hair. kompetenta liudi esas konvinkita, ke Multaj kompetentaj personoj estas konvin- 14. Many competent people are convinced Multa multa chanji e boniorigi di la linguo kitaj, ke multaj shanghoj kaj plibonigoj that many changes and improvements estas dezirindaj kaj ech and even esas dezirinda e mem ncesa. de la lingvo of the language are desirable necesaj. necessary. solvar omna ica pro- Estas eble eble solvi chiujn tiujn -chi proble- 15. bt is perhaps possible to solve all these Esas forsan posibla problems differently. blemi altre. mojn alie. di la profesoro recevita fro la La letero de la profesoro ricevita de la 16. The letter of the professor received La letro al- by the scholar sekretario da la dicipulo per un senditu sekretario de la lernisto per sendito from the secretary klarigo la malfa- through a messenger brought only an bringis nur un neklara expliko di la des - portis nur neklara de indistinct explanation of the difficulty. facilezo. cileco. kaj hhloroformo estas 17. Chloral hydrate and chloroform are Kloral- hidrato e kloroformo esas kemiaji Hhloral-hidrato chemicals justly liked by all physicians juste prizata da omna mediki e kirurgiisti. hhemiajhoj ghuste shatataj de chiuj kur- and surgeons. acistoj kaj hhirurgiistoj. iel au alie, estas chiuj tiuj, 18. Mentally blind, somehow or other, are Mentale blinda, ule od altre, esas omna ti, Spirite hlindaj, having read all these qui pos lektir omna ica simpla omnadia kiuj, post kiam ili estas legintaj chiujn all those who, frazojn e phrases and sentences, frazi e zaci, ne vidas statim, ke Ilo esas tiujn -chi simplajn chiutagaje plain everyday ke Ilo estas tre dis - Ito is very tre distingita fro la projeto di Dro. Zam- frazojn, ne vidas tuj, do not see at once that de Dro. Zamenhof of Dr. Zamen- enhof ed imense boniora e superiora. tingita de la projekto distinct from the project bona kaj supera. hof and immensely better and superior. kaj treege pli maro la sonaja dezerto di aqui e verdis ekizata e prolongara La navo sur la sturm-pulsata the wild waste of waters, and were echoed and prolonged The Ship on the Stormed-Tossed Sea da la monta ondi. Kande sue vidis la navo rulanta e da Washington Irving, Skiso -libro. by the mountain waves. As I saw the ship staggering and by Washington Irving, Sketch Book. precipitata inter ica nutjanta kaverni, semblis mirakloza, La sturnzo kreskis kun la nokto. La maro esis fogata plunging among these roaring caverns, it seemed miraculous The storm increased with the night. The sea was lashed ke ol riobtenis slfa equilibro, o retenis sua natokapablezo. buoyancy. ad enorma konfuzezo. Esis un pavorplena, depresanta that she regained her balance, or preserved her into tremendous confusion. There was a fearful, sullen Olua yardi plunjadis aden la aquo: olua pruo esis preske water: her bow was almost sono di moveganta ondi e ruptita maramasi. Abismo Her yards would dip into the sound of rushing waves and broken surges. Deep obruita sub la ondi. Kelkafoye un intpendanta marantaso an impending surge renkontris abismo. Kelkafoye la nigra amaso di nubi buried beneath the waves. Sometimes called unto deep. At times the black volume of clouds semblis pronta destruktar ol, e nulo altra kanz un habila appeared ready to overwhelm her, and nothing but a dexterous supere semblis dislacerita da erupti di fulmino, qui tresayis overhead seemed rent asunder by flashes of lightning. which quivered movo di la guvernilo prezervis ol fro la shoko. movement of the helm preserved her from the shock. tetnpestondi, e rendis la sucedanta alonge la spunzifanta English, Spanish, Italian. German along the foaming billows, and made the succeeding The first Radio Lexicon in French. and Ilo is the work of John Nordin of Finspong, Sweden. Kurt Feder of La tondri strepitis super Frankfort (Main) Germany and Mr. Roos. It may be obtained from the obskurezo duople terorigiva. writing him care this publication. darkness doubly terrible. The thunders bellowed over latter by

www.americanradiohistory.com 1 A Radio Madeleine TA R Mac Guigan, interviewed violin virtuoso of By the air J. @Addy

WHEN you tune in on the elo- I have a radio and have heard you quent strains of Miss Made- play the violin over the air from leine MacGuigan's violin to- Station WEAF from the Mark night Strand Theater. I have seen your from WEAF, or tomorrow from name and picture in the paper many WJZ, or another day from WOO, a time, and was always wishing for don't be misled by the facile announcer the time that I could hear or see you again into taking for granted that she is a after all these years. sweet Now you are wondering who is young thing who knows only writing to you. Well, I wonder if how to draw a rather smooth bow and you would remember me. Of course pluck an occasional G string. Of you were a little tot only seven or course, Miss Madeleine does know how eight years old when I left Mona- to pluck ghan. I am, or was, rather, Louie and bow -and that consum- Kelly, and went everywhere with mately, and Miss Madeleine is young my twin sister, Lena. We lived in and sweet. But there's more to it than Market Street. Many a time was that, you know. I in your home in Glasscough Behind Street. I was taking violin lessons the exquisite music that from Mr. Rocks at the time you comes to us out of the ether on the were, and well I remember your nights when she plays for her large dear mother saying, "Madeleine will radio audience is a life short, but be a great violinist some day." crammed with Her words came true, for you experiences. In fine, are certainly a wonder. I have her music glows with life because the started my oldest boy with violin girl who plays that music has lived. lessons, and I only hope he will be Not many young ladies of the twen- like you. . . . tieth century can tell of long ocean voy- Wishing you all success, ages when scarcely into from Mrs. O'Connor, formerly out-or !L- Louie Kelly, of Monaghan, Ireland short skirts, of fiery -and vain -woo- ings by Hungarian noblemen, of duels As a little girl in pigtails, and wield- inaugurated for one's mere favor, of ing a violin almost as big as herself, gypsy inamoratos ; and, in a different Madeleine made her first public ap- world, of long concert tours, of tri- pearance as a musician. All she now umphs as soloist to world -famed sym- recalls of this momentous event was phony orchestras, and last but not least, that the kind ladies all clapped and her of a star position in the newest of mamma was very, very proud. artistic fields, radio broadcasting. The elder MacGuigans, just before Umsteen years ago in the hamlet of the outbreak of hostilities in 1914, de- Monaghan on the Emerald Isle a baby cided that, after all, America was the girl was born to an American mother place for them. So we see Mistress and an Irish father. Linked in her Madeleine, blossoming now i n t o were the vivacious charm of Old Erin, charming young ladyhood, vivifying the initiative of the New World, so the mortuary city of Philadelphia with that at the early age of five years the herself and her music. But not for girl decided she would be a great mu- long. sician. From the tutelage of the vil- Another trip across the Atlantic ; and lage fiddler she graduated to a con- this time, past the great rock of Gib- servatory in Dublin. raltar, and on across the Mediterra- Fictionists are fond of uniting long - nean, she and her mother traveled. separated chums by radio. Things Quaint Buda -Pesth, in Hungary, the that ought to happen in books have a land of the folk who "enjoy life with way of occurring in real life to Made- tears in their eyes," was their destina- leine MacGuigan. Here is a letter she tion. Hubay, famous teacher of the found in her mail the other day. violin, lived there. Mrs. MaoGuigan Throgg's Neck, had to return to her family in the New York. United States, but Miss MacGuigan My dear Madeleine, stayed on, and perhaps in this country Miss MacGuigan in various I take great pleasure in writing of hills and woods and gypsies, of offi- poses to you to let you know that at last cers and mountebanks and comic -opera 28

www.americanradiohistory.com 29 MAY, 1925 A RADIO STAR The versatile Mus Madeleine as learned things outside her mu- the "Gypsy Fiddler" in "Salome of princes. the Tenements" sic or her school books. "I love to walk in the woods, where little gypsy fiddler boys grow on the very bushes and follow you endlessly until you give them a, few pennies to run away ; and where every few feet you come upon a cozy inn," Miss Mac - (;uigan told me. Then, "The young men of Hungary, to say nothing of the old, are a very amorous lot. They are terribly persistent and ingenious, and cannot possibly believe you when you would tell them No. "One day I was sipping tea in one of the cafes where you eat and drink at little tables on the sidewalk instead of inside. A dashing young man saw me, seated himself opposite me, pulled a notebook from his pocket and commenced to sketch. Every once in a while he would look up, study my face as if in deep contemplation, chew his pencil stub, and-got at it again. It got to be so embarrassing that I was blushing furiously. I left, though I was rather fascinated by him. Where he got my name I can not imagine, but a day or two later I received a letter reminding me of the little event, and begging me in most pathetic terms to end his anguish by marrying him. "Another time I was strolling along with a girl friend of mine, a school mate, when a young officer brushed against me as if by accident, then proceeded to make a gallant and long drawn out apology. Finally we got away from him. I have always suspected that it was my girl friend who gave him my name ; at any rate, I received a passionate love letter the next day. The lieutenant insisted that I meet him somewhere. I happened at the time to number among my real friends a boy of twenty, whom, as I was a very young woman, you know, I regarded as a big, strong man, one who could advise and protect if I happened into a difficulty. I showed him the letter and asked him what I should do. "Upon reading it he grew red in the face. Perhaps he himself liked me better than I had ever let him tell me- I do not know. At any rate, he pock- eted the letter, and without a word took his leave. thought I detected a note of disap- witching, graceful, seraphic, exquisite, "That evening he called on me. pointment in her voice as she replied : delightful, captivating, physical and " ' Meine Fraulein,' he announced, "The challenge w a s never an- magnificent womanhood . . . " with his chest puffed out, but his face swered." Envy the stars their stacks of letters, terribly pale, `Mein Fraulein,' the American men are not quite like this, but thank the Lord you don't have to matter is arranged !" Miss Madeleine finds. They have a read them all ! " 'What is arranged? What on earth way of their own of going about it, "People have some stupid ideas," do you mean ?" I asked. as some of her fan letters rather keen- Miss MacGuigan told me, changing the "'Tomorrow,' he said, 'and you shall ly attest. Here are a few words picked subject. "They say, 'It is too bad you know the outcome. I wrote the scoun- more or less at random from a letter don't sing over the radio, and tell jokes, drel a note giving him the choice of that is almost as long as this article. for then you would get your personal- sabres or pistols at thirty paces.' " The poor chap had heard her way ity across to all the people that listen Miss MacGuigan stopped abruptly down in New Orleans, had seen her to you.' Now I think that persons who at this point. Anxiously I asked what picture in the paper, and -succumbed. talk like this never could have listened had been the outcome of the duel. I "You are enchanting, alluring, be- (Turn to page 76)

www.americanradiohistory.com i0 WIRE LESS AGE - THE RADIO MAGAZINE MAY, 1925 Quality and DX with 5 the last mentioned Tubes -on the under side two variable condensers and approxi- (Continued from page 13) of the panel. These are mounted as mately 2%" down from dose as possible the top of the time. The filaments of the amplifier to the leads to which panel. they are connected, and it is tubes are controlled by one rheostat, much bet- Of course you must remember to and the filament of the ter to bolt them through the sub -panel connect the rotary plates detector by one, by means of the vari- and the filament of the radio frequen- of two 6 -32 screws where able condensers to the filament they will be fixed, than side of cy tube by another. This was found to have them the circuit and the stator plates to the to be the best arrangement hanging in the air supported only by grid side of the circuit. and gave bus wire. The detector the best results. jack is not necessary and may be omit- I f the set is constructed exactly like ted if desired. The RANGE the original amplifier jack has it will be found to be extra springs for automatic WE WERE certainly pleased very steady and able filament with to withstand con- lighting of the resistance coupled the way this receiver brought in siderable rough treatment. plifier. am- In reality If the detector jack is distant stations. Its most it can stand more It used spectacular banging around than is inserted in the B battery performances were WGY of Schenec- should be accorded any respectable running lead ra- from the input posts of the tady at noon time with good strength dio set. This rigidity is to be desired resistance -coupled amplifier to the B and WFI Philadelphia about the same as it makes for accurate calibration of battery binding post time. As your of the set. The anyone knows, in the vicinity dials and an assurance that the jack merely breaks this of New set will circuit when York, DX in the day time is always operate. The con- the phone plug is inserted out of the ordinary structor will and closes to say the least. do well to lay in a sup- it again when the phone plug Mid- Western stations ply of 6 -32 is re- can be relied machine screws and nuts, moved. Remember when using upon for loud speaker volume of various lengths resis- through from %" to 1/" tance-coupled amplification immedi- local broadcasting. The dials can be which will be of valuable assistance in ately after a detector calibrated tube that it is quite accurately and if tubes the assembly process. Place every- necessary to use about and batteries thing twice the de- are not changed the same upon the sub -panel that is to tector voltage as one would station may be eventually ordinarily brought in repeatedly be there and locate your ap- use with transformer amplification. at their regular dial settings. paratus so that best connections and The 100,000 -ohm resistance forming Its very great selectivity was con- shortest leads may be obtained. When the input to the amplifier spicuous while this arrangement cuts down the set was in opera- is found center punch the ettective voltage on tion in the heart all holes and the plate of of the "congested then start drilling. After the detector tube and to compensate air" of the metropolitan district. With the holes are drilled, mount all your for this a higher voltage tour stations operating apparatus must be used. full blast, with- on the sub -panel, then on This amounts to about 45 in a radius either volts for a of two miles-all 500 -watt end of the sub -panel fasten the L\-200 and 45 to 67 'cations, this receiver two excellent volts on a UV- just stepped additions to the radio 201.-k. This receiver has given right out and brought in the distant constructor's equipment, keen us the two Ben- pleasure in constructing and it ones without a whisper from local in- jamin panel brackets. DOES WORK. terference. We consider selectivity In the past three or four years of paramount in a receiving set and cer- the radio art there has been no greater tainly there is no better place to dem- need than for just such a piece of ap- D -Coil onstrate a receiver's ability or short- paratus as this panel bracket. We (Continued from comings in that respect than in our have used wooden baseboards page 17) and fas- While he laboratory. If we can't tune out tened the panels to them and we have is gone the station in WEAF on 492 used hard rubber question may sign off and when meters entirely and or Ibakelite sub -pan- operator the bring WOC on 484 then els fastened by a cumbersome comes back into the room he that receiver angle may forget is not up to par. Perhaps we should bracket which would have served that he has left the set bet- turned on not say "par" here as too many of the ter supporting the Brooklyn Bridge and the cover being down, lower class receiving and we have used he doesn't notice that the tubes sets are not cap- pieces of brass bent lit. are able of that degree in the shape of an inverted If there is a little bug lamp of selectivity. Q -all this the on However that is our own improvisation when the front of the set like Professor personal par Benjamin pan- Rollins and we govern ourselves accordingly. el bracket was all that was needed. has, it will be evident imme- "fry as we would we The all around efficiency diately that the tubes are on. could not make of the set is The this five -tube set more selective increased perceptibly by interior view of this receiver than the use of a shows our "DX -Go- Getter" of December, sub -panel such as this and by fasten- the tubes and the coils mounted on a little 1924 fame -but why make tuning a ing everything down ship -shape. platform at the rear of the task ? We assembly. The bus -bars can reach limits in this re- PANEL carrying the spect beyond which it is not desirable "A" and "B" battery potentials run to go. N0 SCALE drawings will be nec- along under this platform. essary for drilling How To BUILD and laying out The audio- frequency transformers IT the panel as the illustrations are N BUILDING are ex- also located under this platform, a set of this type it cellent. The apparatus on the directly I is absolutely necessary panel under the audio- frequency to procure includes the two variable condensers, amplifier tubes. all the requisite parts before starting The terminals for the detector coupler unit, the three antenna, ground and the construction. The apparatus on Bradleystats, battery connec- the two jacks, voltmeter tions are all mounted on a piece the sub -panel should be mounted and and filament lighting of fastened switch. bakelite at the back of the set. There to the sub -panel according to Following our usual the illustrations. practice, a cen- is an opening cut in the case so these T h e resistance ter line is drawn the full length terminals coupled amplifier of the protrude through the rear is placed to the ex- panel and fixes the "up and down" po- when the treme right of the case is in place, leaving them set and nicely fills sition of the two variable condensers. easily accessible. up this end of the sub -panel. On this The jacks and filament switch are A careful study of shelf must go the antenna tuning coil, the lay -out that mounted 1/" up from the base of the Professor Rollins has the radio frequency tube socket, the panel created should equally distant from each other, give us all some mighty good detector grid condenser, the detector and the detector sugges- coupler is mounted tions- for the next' receiver we socket and two by-pass condensers- so that the shaft centers build between the or even for revamping the old one.

www.americanradiohistory.com World Wide News By C. S. eAnderson Managing Editor of \VIRELESS Act. Dr. Latour's Patents - Hearst -Schenck Radio Chain - Radio Hits Florence - South Africa's Stations -Radio Millenium League -New Station for Australia- French Invention Stands Tests Patents by the Italian Broadcasting Company, while Dr. Latour's Rome was too far away to be of general LCENSES to use the Latour patents have interest; but the number of listeners -in is been acquired by the American Tele- now increasing by leaps and bounds. The phone and Telegraph Company, the Radio Company has now issued regular time Corporation of America, the Postal Tele- schedules for broadcasting in Florence; and graph Company and the Freed -Eisemann this seems to be one of the main causes Radio Corporation. Dr. Latour estimated for the stimulated interest which grew these agreements would have a capital value slowly at first. of more than $1,000,000. South Africa's Stations Hearst- Schenck Radio Chain SOUTH AFRICA has made a habit up to WILLIAM RANDOLPH HEARST and now of figuring in the current wireless Joseph M. Schenck, moving picture news as a party to long distance reception producer, have combined to erect a chain of and transmission records ; but it is inter- four broadcasting stations, stretching across esting to note that this distant part of the the States, whose daily program will British Dominion has developed extraordi- Premier Baldwin broadcasting an appeal for United the Y. M. C. A. through station 2LO be available simultaneously to every radio narily in the broadcast field as well. Three fan in the country, according to an announce- stations have been in operation there for ment made through Universal Service. some time, at Cape Town, Johannesburg, should be done ; and a notice was run in New York, Chicago and Los Angeles have and Durban, and now two more have been the paper inviting everyone who owned a been selected as three of the cities where added. The new stations are gifted with receiving set in Great Britain to join. The the radio stations, to cost $1,000,000 in all, the remarkable names of Slang Kop and response has been so great that the news- will be located. The fourth city has not Walfisch Bay. paper offices have been fairly swamped with yet been chosen. applications for membership and an appeal has had to be sent out asking the fans to Radio Millenium League please wait until the league officers can Radio Hits Florence AN unsuspecting London daily has found dig themselves out from under the ocean ONE after another the old world cities that millenial plans are far easier to of letters. have been succumbing to the spell of start than to handle; and now they are wireless; and now Florence, Italy, has taken calling for help. A few days ago it was radio to its heart. It was only a short decided to form a Wireless League to do New Station for Australia time ago that a station was erected there everything for Britain in a radio way that PLANS have been laid by the Queensland Government, in conjunction with Amal- gamated Wireless, Ltd., for the erection of a broadcasting station at Brisbane. The station, which will be a "Class A" broadcaster, will be provided with a 5 KW transmitter.

French Invention Stands Tests THE entire elimination of parasites in the transmission of wireless messages, and secrecy in transmission as well, have at last been attained by the new apparatus developed by M. Charles Verdan. Some time ago M. Verdan made the claim that he had accomplished these two results, and now the official tests, just completed by the Admin- istration des Postes, Télégraphes, et Télé- phones verify all that he has said. The invention, which is attached to the Baudot apparatus, permits the latter to function by the Hertzian waves just as if it were operating over telegraph wires. The apparatus acts as a filter so that the para- sitical currents are eliminated. The P. T. T. experiments were between Nice and Ajaccio, Corsica, and have just Viscount Shimpeo Coto. former Home Minister and Foreign Affairs Minister of Japan. echo is now President of the Tokyo Radio Broadcasting Bureau, listening in at his office been completed with entire success. 31

www.americanradiohistory.com The extensive anttnna system at Schenectady. N. Y. Giant Radio Lab. The 53 -acre radio transmitter laboratory of the General Electric Co. - Some problems of radio transmission By W. T. OVleenam

TEEL towers and wooden masts, of steel and brick, will be housed interconnected the The main power house is connected by wires and an- main power plant. Space is provided by S chored in concrete or cable for the transfer of power to by cable, for two additional experimental trans- several smaller are sprouting all over the field in which mitters. buildings constructed the General Electric of wood. These buildings will be used Company is erect- The power plant includes a number for the ing a giant radio transmitter laboratory. development of particular types of high -powered rectifiers for convert- of transmitters and Among the masts which hold a variety ing the must be located a alternating current supply into distance from other equipment. of antenna systems, are large and small a direct current source Very with a maxi- small buildings are located at the foot buildings in which radio specialists mum voltage of 30,000. In addition will to of the steel towers and in these will be seek to solve some of the problems the rectifiers there will be direct of radio current housed the tuning systems for particu- transmission. and alternating current machines for lar The fifty- three types of antenna. -acre laboratory is filament energy, biasing and for low - Due located six miles to their familiarity with receiv- south of the city of powered amplifier operation. The ing equipment Schenectady, the home of WGY. most people interested In space allotted for the two experimental in radio think of an experimental this laboratory the engineer will en- transmitters radio is sufficient for equipments laboratory as a room in which radio deavor to find means of improving rated at a maximum of from transmission 50 to 100 receivers, associated circuits and appa- quality and reliability, and kilowatts. The power building also ratus he will test theories of are developed. In fact many static and fad- includes a dark room for the develop- amateurs experimentally ing, in the hope that these twin terrors ment inclined have, of oscillograms and a fully on a small scale, a receiving laboratory of radio listeners may be banished. equipped storage The battery of their own. antenna structures include three plant. Here also is located towers 300 In general, most people, due to lack feet high arranged in the a central pumping system form of a triangle. of contact with transmitting equipment,. From these steel which provides circulating fail to realize masts almost any type of antenna that radio transmitters may water for all transmitters. are just as important as receivers. be strung capable of operation between This water supply The 600 and is used research, development and design of 3,000 meters. A fourth steel for the water -cooled power tower, 150 the two lines of equipment, while es- feet high, may be connected tubes. sentially to any of the trio of different, are quite dependent masts for work on upon one another. wavelengths from Experimental trans - 200 to 600 meters. 1 mitter work, espe- In addition to the cially if high power steel towers there is to be used, is be- are numerous wood- yond the scope of en masts for anten- the amateur on ac- na systems for ex- count of the space perimentation on and equipment re- wavelengths from 15 quired. The cost of to 200 meters. establishing and In the largest maintaining an ex- building, constructed perimental transmit - The building where research work in transmission is con ducted (Turn to pogo 73) 32

www.americanradiohistory.com Radio tempers ORNADO the Relief measures hurried for- By ward in the recent catas- e/4lbert Laird trophe by means of radio

and as to officials iurgot their daily routine HAll a doubt ever existed organizing value of radio this began the important task of the practical Special trains were doubt is removed when one relief measures. loaded with supplies and dis- views the miraculous aid that radio hurriedly STORM LS 19TH OF patched to the devastated areas. Other gave the victims of the tornado which states trains equipped for cooking, sleeping swept over the Middle Western TORNADO DISASTERS supply Indiana, Ken- and hospital use followed the of Missouri, Illinois, before the smoke had Tennessee on Wednesday, train and almost tucky and IN U. S. SINCE 1884 from the wreckage, medi- 18th. cleared away March relief, hot food, bedding, clothing still have radio for entertainment cal We 1Xeateraay's storm was the nine- and temporary housing were made pastime in the home. It teenth 1884. and for such disaster since Fol to homeless hundreds. furnishes us with market and weather lowing is a list of the worst storms available for radio reports for use in our daily business ; since that time The response was prompt, dis- but this is only a faint hint of its con- Feb. lb. 1884 -Six hundred killed in had brought a realization of this and educational possibilities. southern states aster home to thousands who would structive of Socially, radio circles the globe and April, 1692 -Forty killed in Kansas. have read mere newspaper reports in night. June 14. ]892 -Fifty killed in Minne- it more or less casually. back, many times over one sota. We use to travel far and pay money Such a catastrophe as this writes it- June 20 1893- Sixteefi killed in Kan- self indelibly for generations upon the for entertainment that yielded us far sas river valley. less pleasure than we now receive over human mind. The Chicago fire, the Sept. 20, 1894- Seventy -five killed Theatre disaster, the sinking the air through our ear phones or loud in Iowa and Minnesota. Iroquois speaker without leaving our fireside. of the Eastland have written them- May 27. 1896 -Five hundred killed those in the But it remained for a great catas- in St Louis and East St. Louis. selves into the memory of Middle West states. But in modern trophe to awaken the world to the prac- March 30. 1897 -Three -fourths of the tical utility and human helpfulness of towr. of Chandler. Okla., destroyed times nothing so colossal as the loss of about by this radio. In an incredibly short time a May 9. 190 Thirty killed at Mar life and property brought tornado crossed the southern regions quette. Kas. tornado has been known by people in of Missouri, Illinois, Indiana, Kentucky May 11, 1905 -One hundred and this country. and Tennessee leaving the heart of thirty killed at Snyder. Okla. The only pleasant thought in connec- March 2. 1906 -Twenty -five these states paralyzed, torn and bleed- killed at tion with this catastrophe has been the Meridian Miss. fact that radio has made it possible to ing. April 24. 1905 -Five hundred killed Men, women and children were In Mississippi. Louisiana. and Alabama alleviate pain and suffering many hours swallowed up in death as their houses storms. in advance of the time other methods crashed about, their ears, and fell be- June 5, 1908 -Twenty -seven killed In of communication would have made this terri- southern Nebraska and northern Kan possible. fore the furious onslaught of sas fic tornado. Telephone, telegraph, rail- More than $10,000 was raised by March 13, 1918 -Heavy damage and radio in alone, on the same road and highway service, which a loss of life in Illinois, Indiana, Tennes- Chicago moment before functioned perfectly, see, Louisiana, a.nd Texas. afternoon the storm struck. Programs with hardly an instant's warning were May 26. 1917 -One hundred lives lost were cut into and in many cases dis- completely wiped out. Public utilities, In tornado that swept Coles county, continued in order to turn over to the business blocks Illinois. broadcasting stations the work of ap- churches, schoolhouses, March 28, 1920 -Thirty killed in and were splintered and twisted in one end- pealing for help. That and keeping near Chicago. One hundred and thirty world of the less scrap -heap. The crashing light- dead in seven other states. the outside informed progress of relief measures, and the ning, the over turned stoves, and the April 26, 1923 - ready 100 kfilcd in high wind resulted in dreadful fires Oklahoma. task of acquainting the public with the which completed the havoc that the tor- July, 1923 -Sixty -three killed at Porn names of the dead and the injured con- eroy, Ia. tinued throughout the afternoon and nado had already wrought. The most recent storm disaster was iIn ordinary times long hours would night. at Lorain, O., on June 28, 1924, when night of the have elapsed before any semblance of 67 persons were killed and scores in- On the fateful storm assistance could have been organized Jured during a. heavy wind which radio started to work in character of a and sent to the scene. But through swebt the southern shore of Lake Erie. youngster. In the cold gray dawn of instantly spread The property loss was placed at $26; the following morning, it emerged radio the news was 000,000. throughout all the adjoining states. from the storm ridden area begrimed Immediately doctors, nurses and public and fatigued, but a full grown man. 33

www.americanradiohistory.com OW-do- you -do ?"

. Meet the original " How -do- you -do" man, and learn something about the unique service he renders By eAnn Lord

Do YOU know what the "How ally announced the "How Do You Do Do You Do" song is? Well, THE STORY OF THE Man," said Quinn Ryan, now crier for 'HOW -DO- YOU it's a song of greeting and salu- -DO" SONG WGN. All these statements are true. tation By HARRY GEISE over radio which is proving a according to the seven "How Do You wonderful During the latter part of April, medium through which Do" men, and it came about in this friends 1924, a certain gentleman and my- and kindred, lost to each other self were booked to sing at the manner. are being reunited. Sears Roebuck Station, WLS at In the spring of 1923, Harry Geise 6:30 in the evening. When you tune -in on the different At 6:00 P. M. became a radio enthusiast that night, this gentleman and my- after visiting Chicago stations and hear world criers the KYW studios -Chicago's pioneer announcing rather proudly, self conceived the idea of writing a "This is little original ditty to sing to the station. He delivered an original en- station and ABC you are now listening staff at the Station. We wrote six tertainment which was so successful to John Doe, the original 'How Do verses about the different members that he decided to give up his music You Do' man," you begin to wonder of the staff, including one verse to London, England, while store and go over to the radio. how this can be since so many at my of- true, fice, which was then at the Loop Mr. Geise was walking northward on "How Do You Do" men claim to be End Building. We immediately Michigan Avenue, toward Monroe the original. went over to WLS and put on the Street one afternoon a year ago this Then when song. you investigate the facts month planning a program for the laid before you in reference We were introduced that night to the on the air as having originated opening night for station WLS. As Do a "How You Do" song, you will new song, the "How Do You Do" he strolled aimlessly along, an old readily see that the public has forced song, being sung for the first time friend of his came up from behind, it into each broadcasting station. A to the radio audience, by the corn - posers. slapped him on the shoulder and ex- great many men, women and The requests were so tre- children, mendous that we repeated the song claimed, "Greetings and salutations," have in some unknown place. a lost about ten minutes later. The song as men will ? He explained that since relative ; through radio, the "How Do continued to mount in popularity, he had accumulated a nice fortune, he You Do Man" is the connecting link. and we approached a member of the Ted Brown Music had been spending a lot of time and In Chicago alone, there is Corp. to publish a list of it. We were informed, however, money chasing around over Missouri, seven "How Do You Do" men. Either that the song was not commercial, Kansas, Oklahoma and Arkansas legal through rights or popular de- and that it could not be published. searching for his elderly father and mand, these men are nightly forced to Time went on and this gentleman and myself broke mother from whom he had run away go on the air with additional verses to up the partner- ship, he obtaining a new partner, when a mere lad. This gentleman, the already long "How Do You Do" and they went under the name of whom we shall call Jack Lowell, be- song. the "How Do You Do" Boys. I cause that is not his name, had heard Heart after heart crying out for lost kept on using the song at WEBH, about WTAY and the radio and suddenly ex- ones -and in some cases finding occasionally at WGN. them This gentleman and his partner claimed, "I wonder if you can help me through radio -and in other cases be- were using it, and Ford and Glenn find my folks over the radio ?" ing cheered on by word from someone at WLS were singing it every night. There isn't a thing about this that Eventually there was who has known of the lost person. such a de- happened by accident, chance or cap- This confusion about mand created that this member of the authorship of the Ted Brown rice. It started because Jack Lowell Do Music Co. took it "How You Do" song has not been upon himself to publish the song, wanted to make amends to the father settled until now-and to be accurate, claiming he was re- publishing the and mother whom he left on a lonely I must say a final decision is now pend- old, old "How Do You Do" song farm in his younger with new verses. days. Jack had ing in the courts of Cook County. hated the farm and its solitude. He But No contract was given me, but everyone is satisfied about the with the assistance of Jerry Sulli- feared the purple shadows, the dark assured outcome. Harry Geise, is the van, Director at WQJ they were pines, and the lonely valley. As his forced to only man who has received royalties make a compromise settle- parents succeeded at farming they from the song. Phil Flemming, ment and give me a contract. a sing- Beginning in moved farther inland. This for some ing partner appearing the spring of 1923 with Harry I became a "Bug" after listening to reason was distasteful to Jack, and he Geise at the time he first sang the the mid -night programs, and visited made up his mind to go to the largest "How Do You Do" song, has claimed the KYW Studio, going on the air nearby from city, where the lights were a part of the royalties and this claim this station. I gave up my music store and went into the radio never out. He came to Chicago. has resulted in throwing the matter game to entertain the public. "Mother and Dad were never much into the courts. Now I am at WQJ, having made on reading newspapers or magazines," The connections with that studio, other singers using the song on he continued, "but if I could run an make no further claims than, "The June 8th, 1924, as Assistant Direc- tor, Accompanist, Assistant An- advertisement in a seed catalog, I'd be 'How Do You Do' song was first intro- nouncer and entertainer. apt to locate them the first week." duced from station WLS." "I origin- Harry Geise promised to see what 34

www.americanradiohistory.com MAV, 1925 "HOW -DO- YOU -DO ?"

Harry Geise, the original "How -do- you -do" man

could be done about locating the old announced by the popular bachelor of college song of the 1492 vintage. It is folks over the radio. Arriving at his "Uncle Walt" fame, Quinn Ryan. reasonably certain that it started before office, Mr. Geise talked over the matter Afterwards, Mr. Flemming became Harry Geise was born in a little college with his singing partner, Phil Flem- associated with another singing partner town in the Middle West and just like ming. Feeling that they had better and they began to use the song. Mr. the song "Annie Laurie" "How Do practice on the staff before trying it Geise became associated with Wendell You Do" started from a small begin- out on the public, they composed six Hall, with whom he has written nine ning. It was originally called "How verses to a tune called "How Do You successful popular songs. The demand Do You Do Mr. Johnson ?" and Harry Do Mr. Johnson." The words gave for the "How Do You Do" song, how- Geise recast it into a 1942 mould and the "air audience" a pretty good idea ever, increased. As it was the opening put it to work. of what was going on in the station feature originally broadcast from As an example, few of us probably and what each member did. One verse WLS through its usefulness and popu- think of "Annie Laurie" as having ex- even was dedicated to distant London. lar demand it became necessary for isted in real life, but she did. 1f we In a few hours they were on the air Ford Rush and Glen Rowell, the "lulla- go to Dunfries today we may see her again, by popular demand and from by twins" to sing it, and so that's that. "last will and testament" in one of the coast to coast was heard Jack Lowell's There's a grain of truth in everybody's institutions there. We know that the request begging for word from a lonely statement, and except for the crossing song begins, "Maxwelton braes are old man and woman somewhere on a of wires-no, I must retract that, this bonnie," and Maxwelton is near Dun - farm -a prosperous son was searching is a wireless story based on facts-but fries. Well, Annie Laurie was born at for those dear to him and yearning for aside from a little static between sta- Maxwelton in December, 1682 ; and to- the chance of caring for them in com- tions now and then regarding the mat- day she lies at rest in Dunscore church- fort for the rest of their lives. ter, each is justified more or less in yard about which Carlyle often writes The "How -Do- You -Do" song was what is claimed. in his letters, for he, too, belonged to born that night. Harry Geise and his Harry Geise admits that he didn't that district. Annie Laurie had a singing partner, Phil Flemming sang "originate" the song, his manager, sweetheart -a certan Mr. Douglas - it for the first time on the opening Jerry Sullivan in a recent interview and it was he who wrote the original night at broadcasting station WLS gave proof that the original is an old (Turn to page 64)

www.americanradiohistory.com The DICE By Laurie from the CABINET York Srskine The mystery that was NOT solved by the radio

CIVILIZATION and progress work thoughtful, contemplative manner, and strange transitions. Twenty years shook hands with the older man. ago Sarnac was a lumber camp. LAURIE YORK ERSKINE, author "Come to fix up the ole dofunny ?" Today Sarnac is the suburb of any great of "The Voice from the Cabinet," is the LeRoy Meredith had lost none of the simple, city which the inhabitants of Sarnac may author of the famous "Renfrew" stories. bluff good nature which distinguished him choose for their shopping, visiting and The success of "RENFREW OF THE before he was persuaded to stick that cap- recreation. We don't think anything of ROYAL MOUNTED," led editors and ital R in his first name. running down to Detroit, three hundred publishers to demand in hysterical chorus "Yes," replied Early. "We'll get it miles away, or spending a day or two in work- for more and yet more books like it; with ing tonight, all right." He placed his par- kl hicago, which is even further. The the result that because Mr. Erskine had cel on the gate legged table. daughters of no fewer than seven of our thought his boy readers might be interest- Thereupon Kate's father sank into a families have been educated at . \nn Arbor ed in some stories about the Mounted chair and would have embarked on a so- or Northwestern, and one at least can boast Police, he found himself apparently ciable evening with this young man whom of an education in European universities. doomed to write about nothing else for That is because in Sarnac we have made he liked for his straightforward, unaf- the rest of his life. In a single year he fected manner, but Mrs. Meredith achieved money out of timber. \\'e continue to live wrote "The River Trail," and "The in Sarnac, but the conveniences of travel extraordinary signals from the doorway, Laughing Rider." He also wrote "The and he reluctantly arose. and the fatness of our pocketbooks make Confidence Man," "Valor," and "In the us merely a suburb of all the world. "Well, I guess I better get along up- Event of Death." stairs," he murmered clumsily. "Leave Kate Meredith was the girl who went "The Voice from the Cabinet" written you young folks together." to Europe. There she learned just enough especially for Wireless Age-The Radio Ignoring the wince with which his of the difference between Sarnac and the Magazine, is one of several attempts of daughter received these homely sentiments, rest of the world to be distinctly dissatis- the writer to prove that he can write a he followed his helpmate up the grand lied with Sarnac. The young people of the good short story without leaving the liv- staircase which swept about the panelled little town she found lacking in the things ing room of an ordinary American home. hall, and retired into a roomful of books of the world which you about in learn You can judge for yourself how well he which he never read. European universities. \ \'hat we consid- has succeeded. "Let me know how it sounds when you ered "society" in Sarnac pale -a imitation got it ready," was his passing adjuration; of society in Detroit not merely bore -did and Early promised him that he would. Kate, it was incomprehensible to her. This Left alone with the girl, Early turned to was regrettable because Kate was exceed- 'l'ltis story really begins two years after her with a smile. ingly pretty and there was not a young man "We'll the advent of Trimble. It begins on an soon have the old radio in work- in Sarnac who did not aspire to be her ing order," he said gaily, "and then you'll escort to the delectable social functions evening when Jack Early made his way through the snow covered streets of Sarnac have a vaudeville performance whenever which tilled our season. The only one who you want to turn the handle." made any headway at to the large and ugly stone house which all, howes er. was In a very business -like manner he Early, represented the fact that LeRoy Meredith un- Jack the science teacher at the High wrapped the tools from his brown paper School ; he won his way had made three million dollars out of tim- and further into parcel and carried them over to the long her of because ber lands. Jack carried a small parcel regard than the rest us he cabinet at the end of the room which was had taken some courses at the Sorbonne. wrapped in brown paper. Mrs. Meredith Sarnac's second radio ; opened the door for him, and her some- set the first had been and of course knew Europe. installed what tired eyes brightened when he entered. by Early at the High School. Unfortunately Jack fell hopelessly in She followed him with her "I'm so glad you've come, Jack," she eyes, thought- love with the fair Katherine . . . Un- whispered as he entered the hallway. "You fully, contemplatively dwelling upon him, fortunately, that is, for Jack ; because Kate as though he might hold the answer a know I can't leave her alone, I to had not been back in Sarnac a year when really can't." question which seemed to occupy her mind Rodney Trimble came and opened his of- to the exclusion of all But This somewhat embarrassed Early. else. this was fice in the opera house block. Rodney not not for her the expression of the moment. "Oh, she's all Tight," only knew Europe, but he possessed a cer- he murmered cheer- Her eyes had held that far seeing, contain distinction, and ease of manner which fully; and with his paper parcel under his templative look for many months now. It far outshone the graces of Sarnac's younger arm, he cheerfully invaded the living room. had become habitual with her. It was a very large set. He dressed with blithe disregard of room, and like the If he was conscious of her gaze he did house, middle western ready made clothes, and he it was designed for effect. Hand not betray the fact. His way was studi- painted a spoke with a modulated tenor that suggested murals panelled it, and the furni- ous one, his manner was infinitely calm, Piccadilly without imitating it. He sold ture suggested the corridors of an expen- Iris clean out features serene. With an al- bonds and had come to help the retired sive hotel. Kate Meredith occupied one of most imperceptible lift at the corners of timber barons of all the little Sarnacs which the roomiest of many roomy, overstuffed his mouth, he seemed to smile as he worked lie secreted in the Michigan woods to prop- chairs, and LeRoy himself arose rather at his self imposed job. He did not look erly invest their money. He achieved this sheepishly from an overstuffed davenport. at her until he had probed about for some altruistic mission with singular ease. Also He had been napping. minutes inside the cabinet, and then he he achieved Jack Earlÿ s place at Kate "Hello Jack!" he boomed. turned to her as a doctor might turn to Meredith's side. Early turned from the girl who, having the mother of a child he had been exam- But we are leaping ahead of our story. greeted him, stood gazing at him in a ining. 36

www.americanradiohistory.com ,ìi MAY, 1925 THE VOICE FROM THE CABINET emotion he permit- what would you like ?" he asked "Now ted her an ever so Detroit Symphony her whimsically. "The fleeting glimpse of the Roseland Marimba Band? Orchestra, or his percipience. She or Irving Berlin ?" Gabrilowich, felt it without un- and sat down upon the colorful She came derstanding it. Ottoman which her father had conceived "You was fitting to the estate of a lumber baron. think that "Jack, you're the kindest man I'll forget!" she I've ever met," she said. He greet- cried. "Well, I ! I ed the serious note of her voice won't shall never give him up! with a smile which parried the I the compliment she paid hint. "But know what hor- you don't seriously people of this rible little town are suppose that a new kind of canned saying. They say he me and music can jilted that it serves me she halted with a ! Well he shadow of pain in right her eyes, at which didn't! Somewhere he is thinking of he frowned . . . me and trying to "can . . . take come back and my mind away ful- fill his engagement from him . . . ?" with me! know She was like a I little child who it! And I'm go- pleaded for some- ing to wait for thing which she him. This isn't could not have. any school girl romance, Then she noticed Jack! It', his frown and was real. I'm a woman immediately peni- now ! And I shall tent. stick to my part "But I appreciate of the engagement. Why I can see it!" she cried. "I he sat do! It's a fine him now as thing if only be- where you are sit- the night cause it brings you ting on before he . . . here ! I don't know "Now, what would you like ?" he he I can re- what I'd do if I asked her whimsically left. his face: were left alone!" member I can even remem- She arose impetu- ber the tone of his ously from the ot- "But voice . . . !" toman and impetuously dragged forward a rupted the sequence of her thought. pride "But you can't live all your life with light chair in which she seated herself close I didn't!" There was a shade of Trimble disap- this infatuation!" to him. "Mother and dad get on my nerves in that. "When Rodney peared from Sarnac, and the days and Early's voice crashed in upon the silence so!" she confided to him ; and there was an never heard from which followed her attenuated regret with intensity of feeling in her voice which weeks passed, and we said he had gone for the harsh ring of reality. She started and caused him to glance quickly and keenly into him again, everyone you know the mean and beastly turned white with astonishment and pain. her eyes. "They seem to be watching me!" good. And they said of him!" She stared at hin. with mingled anger an-1 she protested. "Always watching me! As things Early nodded. He knew, and although distress. if I was crazy or something. And I'm not! he himself had never mentioned those mean "What do you mean ?" she cried. I'm not crazy, Jack . . . It's only that I things, he knew also that there He clenched his teeth. It had been an can't forget him! They think that they can and beastly some foundation for the dark stories outburst of all that he had held repressed do things and take me places to 'take my was which had clouded Trimblé s name after since she had returned from that trip mind off' !" This she said with elaborate sar- his abrupt departure. Trimble, in fact, abroad. He had not meant to so betray casm. "But they can't do that because my had been a young man who knew how to himself. mind isn't 'on' anything. It's just that he pay two different kinds of attention to two "I'm sorry, Kate," he cried impulsively. is in my mind, and they can't take him of girl at one and the same "But that's true, isn't it? You can't go out of my mind! Nothing can take him different sorts not alone in his suspi- on life moping over this man', out!" time. Early was all your the man's unheralded disappear- disappearance!" Early did not seek to interrupt her. he cion that ance might have been traced to the com- She stood erect, disdainful and yet just sat and received all that she had to plications which are so often the result of strangely disconcerted. She felt in that say to him without betraying the trouble such heroic enterprise. But Early did not moment an uneasy suspicion that not a that he felt. He was convinced that this because Early loved of the legend she had built upon infatuation which filled her mind was the mention these things small part Meredith so deeply that he was able her shattered romance had lain in the de- creation of her fancy; the fabric of a Kate in her lovelorn devoticn to the votion and sympathy of this young suitor. romance which her own hunger for it had to divine gallant an element of which Kate She experienced one of those disturbing conceived and nurtured. But he couldn't departed ignorant. He knew that Kate glimpses of the truth which revealed a peep tell her that. herself was grieved not for the departure of a lover, of how largely her distress for the van- you're right," he admitted. "I suppose but for the dissolution of her romance. ished Trimble constituted a hold upon the nothing can take this out of "I suppose Only by grief could she keep that romance devotion of Jack Early. But that glimpse your mind; but I don't see any reason why alive. So she grieved, without knowing was immediately obscured by the resent- listen to the radio." He smiled you can't that her grief was wasted on a shadow; ment it aroused. Of course she took the "The raido never took any- whimsically. that her romance was merely a dream. resentment out upon Early. body's mind off anything but trouble," he man can't carry a knowl- "Yes !" she cried defiantly. "All my life! said. Of course a the living presence Oh, Jack! if thought that you understood!. "Last year when Mother took me over edge of that sort into loves without betraying some- I thought that I could rely upon you out to Italy, she thought I'd forget everything," of the girl he his eyes. As Jack Early of all the rest of them to . . . to respect said Kate. And Early noticed that his thing of it in the girl's outburst of my feelings!" gentle protest had not so much as inter- nodded his assent to

www.americanradiohistory.com 38 WIRELESS AGE - THE RADIO MAGAZINE 1925

wooden screen which fronted it. There was an instant when both of them "You have just heard the Rose- surrendered to a perceptible thrill as his land Marimba Band in a series eyes met hers. She was the first to com- of selections from refined jazz pose herself. melodies. This has been a great 'U don't think treat to--" much of that," she said. And her superb poise completely deceived "Turn it off !" she him. He decided that it was cried "Turn that terrible not possible thing off!" that this brown haired girl with her eyes still moist from crying Early quickly obeyed could have felt the her. same emotion which he had experienced in that instant "How dare you turn on when their eyes had met. that terrible noise, when "Of course you are all eager to hear I'm speaking to you ?" the orchestra as we promised to broadcast She frowned upon him it," the voice of the announcer moved with snapping, dazzling unctuously onward. "But we're going to eyes, and an uneasy pre- take a few moments before the program monition that she was begins to ask your kind co- operation in a going to cry. matter of serious importance." The voice didn't know it became suddenly and profoundly grave. was "He going off," he pleaded talks through his nose," she pointed out penitently. "I was witheringly. just fooling with it." "Shall I turn it off ?" To his horror she "No." She halted him as his hand answered this with a moved toward the instrument. "Let's hear sudden melting. The what the important thing is he's got to speak angry and rather at- about." She endeavored to conceal by her tractive sparkle of her casual tone the surrender she was making anger left her eyes to her curiosity. which became abruptly "Politics, I suppose." Early murmered filled with an entranc- the remark on the heel of the announcer's ing suffusion of soft, portentious voice. sorrowful twilights. "It has been our hope," quoth this in- Then she sank abruptly visible master of ceremonies, "that the ra- into her chair and burying dio might some day be made a medium of her face in an arm which vital usefulness to relieve distress and she laid on the back of it, alleviate the sorrows of this strange thing she wept. called life." His tone was now deeply "Oh, don't Kate !" he philosophical. "Tonight," he continued, his voice brightening perceptibly hovered helplessly o v e r as though to her. "I'm sorry! Please convey that all might not be as dark as don't think that I wasn't it is painted. " \ \'e believe we have the opportunity putting listening. . . ." Abruptly of this to the test. We he became conscious that are going to ask all our friends to listen he had nothing to be sorry in closely upon this acid test of the radio and do all in their power to help us carry this good work to a successful conclu-

sion . . A pause, dramatic and instinct with suspense. The young man and the girl in that living room "Let him speak! Let him at speak"! cried the girl to Saranac, three hundred the cabinet miles from the chamber in which the announcer was "Why, I do, Kate! You know that . speaking, "But you don't !" she cried. She was de- felt themselves under termined to make him suffer. "You don't! the influence of the You're just like the rest of them! You're peculiar romance with laughing at me ! Yes, you are which the sound of !" She flung for. That he had done nothing to offend away from him and turned that suspended voice permeated the air about -a picture of her. This was a relief to him, and since Trimble which smirked she them. pleasantly at them gave no sign of accepting his meretricious from its silver frame upon "Standing here at my side," boomed the a carved table. penitence, he turned again to the cabinet. Early turned in despair sure tones of the speaker, "is a young man to the cabinet "Listen, Kate," he said. "I'm going and toyed with the disk to whose memory has failed him. Three which controlled get the Symphony Orchestra." And the mysteries it contained. he months ago he was taken seriously ill in became so intent upon the shining "You're laughing disks the lobby of the Tulliver Hotel. Since at the very idea that that he did not see her peep toward him then he has fought for I'm serious !" she continued. "You think from her his life in a hos- dewy hands. He did not detect pital bed suffering from it's just a pose! Well, I'll show you! the mingled a grave and corn - pleasure and perplexity which plete nervous breakdown. Some day Rodney Trimble will come back He is now in was in her eyes. And he did not notice seeming into my life again, and good health ; his body is strong you'll find that it that she turned about in her seat has been only to gaze and his cheek is flushed with healthfulness. circumstances which he at him once more with that couldn't thoughtful, In addition to that his mind is in control that have taken him away. contemplative gaze tip -top with which all unknow- condition. But -and here, Then you'll see! . . . Are you listening my friends, is ingly she betrayed an interest in him of the point to me? You'll see then, that you at which you can be of aid per - have done which she was not yet consciously aware. him wrong. haps -his memory is a blank. He can re- When the portentious, baritone voice of "DOUBLEYOU JAY ELL member nothing of his life before he col- EMM!" the announcer responded to his manipula- lapsed boomed a voice from the cabinet; in the lobby of that hotel. He and she tion of the disks, Early looked up broke off to stare to find cannot remember his name, nor the town in confusion at the her sitting there quietly observing him. from which he came. He believes that his

www.americanradiohistory.com 39 MAY, 1925 THE VOICE FROM THE CABINET

keenly the there was something more than pathos in home was in a small city, but even of loved this girl, and he had felt displaced him the words she heard. The voice was a he is not sure. He remembers noth- ease with which Trimble had that soft and rather musical tenor, and there ing. And yet it is certain that in some at her side. was in it a peculiar inflection ; a drawling home over this broad land there is a family A few discordant, grating sounds pro- head note which is seldom heard in mother, or wife or sweetheart ; per- from the cabinet, only to be re- -a ceeded Michigan. are some little ones -who have by an infinitely faint and halting haps there placed "I only hope that there is something in him and who have given up hope of And Early, who with cool and lost voice. it," continued the speaker. "To live on his return. On some day of the vanished scientific complacency had accepted this like this is like living in a nightmare . past this man left his home, no doubt ex- ethereal intercourse of the radio as a thing It was a cultivated, distinguished voice. pecting to return that very night, only to of mechanical precision, knew for the first It had a singular refinement, a certain be swallowed up in the oblivion of this time with what magic he had dealt. With- polish. which has afflicted him . . . . tangible means of conveyance here disease out any "It's Rodney !" she cried out suddenly. am speaking there is per- was a voice speaking in his ear ; the voice "Even while I "It is, Jack ! It is ! I can see him now hundreds of miles away was ap- haps someone listening to my voice who of a man here. I can hear every little in- homes for as he sat has grieved for long months and sought in pealing to a hundred thousand her feet. crying had flection !" She was on . . the place in one of them which fate vain for this lost man . out her discovery with a shrill, high ex- from him. Early, glancing quickly up from the car- stolen citation which had something of hysteria strained every faculty pet which had held his gaze, saw suddenly As Kate Meredith in it. "Go to the telephone Jack ! Ring hint of the accents she that the man's words were all too true. for the faintest them up ! Get to them ! Get to them! dumb- Kate Meredith was hanging upon the sound so ardently desired to hear, Early sat That's Rodney Trimble talking to us now!" and tortured by the menace to his of that voice with a singular fire in her founded The voice droned on, but Early had no which thus came uncannily out eves. Here indeed was some one who had happiness for it now. He had leapt to his feet, air from far distances. The voice ears already visualized who that lost man was. of thin thrilled to the marrow by the discordant an invisible man. Early perceived with alarm that the girl's of note with which she had broken her tense her murmered the romantic nature had already prepared "He speaks so faintly," silence. He put an arm about her. of a for the conviction that this lost one must girl. And certainly the pale shadow "No !" Don't lose control of yoursel f ! cabinet be the vanished Trimble. He divined that voice which emerged from the Kate! Listen to me! You are mistaken. the faint it was, to her mind fate was now playing out amply justified her plaint. So You're over-excited. That might be the She hung on the in its cadences that last act of her romance. and so infinitely halting voice of almost any man in the world. devotees world. voice from the cabinet as ancient it seemed like a voice from another You must control yourself." the corn- must have hung upon the words of Then, as if in response to the girl's "Don't touch me!" she cried. "Oh, can't Delphic oracle. Catching his glance, she plaint it rang suddenly louder and more (Turn to page 70) smiled with her eyes and breathed a com- firmly. The speaker had been turned to mand through half opened lips. the microphone. "Listen !" she murmered. . . I cannot remember that," came "And now this man is going to speak the new, firm tone. back in her to you," declared the announcer. "He has Kate Meredith threw herself consented to come here this evening and chair, her eyes wide, her lips a little parted. broadcast his voice over the length and "I don't breadth of this land in the hope that it think of any- may reach some loved one who will rec- thing I can ognize it as the voice of he whom they say," contin- are seeking. If there is anyone who does ued the voice. this -" "B e cause "Oh, why doesn't he let him speak !" The there isn't girl sat tensely on the edge of her chair. anything I can Her fingers gripped the arms of it. Her talk about, and bright eyes were glued upon the cabinet it seems queer from whence came that smoothly flowing to stand here voice. and speak to a piece of ma- . if any of my listeners recognize his voice, I am authorized to say that this chinery station will be ready and willing to pay like talking to the fare of this forgotten man back to the yourself. They me hearth which claims him ; and we'll see tell that that he is properly escorted to his destina- thousands of people are lis- tion . tening to me, "Let him speak ! Let him speak !" cried the girl to the cabinet; but the voice from and that if I the cabinet proceeded without a break in talk a while its suave accents. Early for his part could 'there is a only watch the girl. chance t h a t "Now I won't hold you in suspense any someone who longer," quoth the oracle. "You can all knows me will understand the importance of this thing the recognize my radio is about to execute under the auspices voice . . . " of station WHKY. I am now going to There was an give my place at the microphone to this u n co nscious man who has forgotten who he is. I thank pathos in the you." plaintive There followed a moment of electric si- sound of those lence. Early found that he had so far words. Early, fallen victim to the thrall of this strange hearing them, situation as to feel his forehead, damp with frowned in hot, sympathy for sweat. The room seemed unbearably "Standing here at and the sight of the girl, sitting tensely the speaker. my side is a young shining eyes, did not alle- But for the man whose memory expectant with has failed him" viate his discomfort. For he knew in that girl who sat moment the pleasure and security he had so tensely op- derived from Trimble's disappearance. He posite him

www.americanradiohistory.com "N. T. G." with his Aire- dale "Rhode Island Boy" N.T.G. WHN's Speaking: popular announcer as he is in real life "Ready Boys? By Let 'er Go!" Golda OIL Goldman

NILS 1: 'l' H U t;k:1NLUND! must have laughed as he looked down, the deer would go throwing up huge The name alone takes us into not so long ago, on the little village, chunks of snow with their hoofs while the far spaces of the north, on the boundary line between Sweden the sledge skimmed across the frozen where the surges of the sea beat against and Lapland, and saw his tiny, squirm- surface like the winds themselves. the shores and the great wide spaces ing, name -sake ! The spirit of his It is a far cry from a life like this lie bare under the open skies. It is laughter must have gone into the baby to the black and white velvet studio neither the name nor the inheritance who has found his mission in life to in Loews State Building, at 45th Street that one might expect as a back -ground he the spreading of smiles and chuckles and Broadway, New York City. The for the famous N. T. (;., whose name that ripple out over the world as far life that filled the intervening years has come to mean the personification as thought and air can reach. But the was incredibly active. At the age of Thunder God gave him more than the nine, young Nils was brought to the gift of laughter; he gave him an ex- United States. Until his voyage to uberant joy of living, and a daring, adventuresome spirit. He must have said as he looked down on the little snow -covered village, "This child shall travel where the winds go and he shall feel the elements no more than do my own thunderbolts, and far as he goes, he shall take with hint a spontaneous sense of humor that shall prove a boon to all mankind." The child's father was a baron, and kept a little trading lost in the frozen, beautiful country. His mother was a northwoods woman, with eight sturdy brothers and one strong sister. The little community in which they lived was crude, but it developed men and women who could buffet their way' through life. Into the trading post so near the Arctic Ocean came the Lap- landers with enormous herds of rein- deer, ten thousand at a time. They were quite without the knowledge of how to coin the untold wealth which Mrs. Granlund ha; caught her husband's love of their herds represented. fishing. Here she This the baron is off Wickford, a little fish- Little June loves Daddy's Airedale too -and he ing village of Rhode Island taught them how to do, and so his loves her trading post was a center for the ac- of Broadway, the concentration of the tivity of that vast region. His small America he had never seen the sea, white lights and the music of jazz son rode around in sledges built like and yet the sea was to become his writers, but fits it him perfectly for the modern canoe. They were skin - greatest love. A friend of his father's no drop of the Viking blood of his covered and lined with strong woods. owned a boat which was going down ancestors has been wasted in N. T. G. The boy would slide inside, lace the to Turks Island, near the end of the How Thor, the God of Thunder, coverings around his waist, then all Bahama group. The nine -year -old boy 40

www.americanradiohistory.com MAY, 1925 N. T. G. 41 shipped as part of the crew. They little idea of what to do with it. Gran - elegant in his perfectly fitting gray went after a cargo of rock -salt to this lund's imagination centered upon this clothes, his gray silk shirt, and his gray barren little dot in the Atlantic Ocean. and he wove around it a romance of :ie, as much at home before the micro- Nils had a very important job. The Australia, brought the ship to Provi- phone at WHN as any host in his natives brought huge baskets of the dence, and sailed it around the Cape. drawing -room, affable to the great and dirty, rocky salt and dumped it into the He had the boat on exhibition in Provi- near- great, with a constant jest on his hold, and into each emptied basket the dence when Marcus Loew came to iips and a spontaneous humor which youngest member of the crew dropped town and so begins a new chapter. bubbles all over the world, it is almost a little coin worth one -fifth of a cent. Loew ,made Granlund Press Agent inconceivable that his background is Five baskets of the heavy stuff the for "Hanky Panky" and for one month what it is. To see him now is to see natives brought for a cent and he was he 'went on tour doing this work. He the personification of civilization and their pay-master. Here, too, they didn't like it though. He had to be his life has been spent in the wildest bought coral for next to nothing. This nice to people whom he didn't care places of the earth. was the first of a series of innumer- about anti so he left, but when he His work with the Loew theatres able voyages to South America. In has shown much real ingenuity. He between and during his trips, he at- evolved the system of opening thea- tended school. As he grew older he ters with movie stars which is to some spent his summers on racing vessels degree responsible for the fact that he in Narragansett Bay and here he made is extremely delicate looking today. good money. He had been in every Three years ago he was taken with hell -hole in South America, where men appendicitis and peritonitis set in. At were killed every two minutes, and that time several Loew Theatres were now he transferred himself to the so- being opened so he refused to stay in ciety of the Newport millionaires, and the hospital. He would come out in became friends with the best of them. the morning. direct the opening of a At seventeen, amazingly enough, he theatre. and go back to the hospital at graduated from high- school, and al- night. Any temporary improvement though he calls his education "sketchy" was of course overcome. Three at- I understand that in his delirium sev- tacks took him into four hospitals. The eral years ago it was doctors gave him up. Greek that he recited. but probably the God At seventeen after of Thunder, always ad- graduation, he got miring the Viking spirit married with the in- of his protege, pro- tention of giving up the tected him and so N. sea. He found, how- T. G. did not disappear ever, that he could not from Broadway. make enough money in During this work, of other lines and that he course, he has de- enjoyed the sea -life too veloped an enormous much to give it up en- acquaintance with tirely so he shipped movie and musical aboard a Portuguese comedy folk and schooner, the Louisa through him hundreds Silva, and fished in the of actors, actresses, North Atlantic. After song- writers, etc., got several trips his writings became their start. Clara Bow, for instance, known and he became Sporting Ed- now drawing one thousand dollars a itor of the "New York Tribune." week, got her first job through The years here are crowded. He "Granny" as did Mary Miles Minter, drove race horses in amateur sprints. etc. The walls of his office are cov- He became a boxer and then handled ered with photographs of every one prize- fighters. He wrote sea stories from Mary and Doug down. and spent his summers following the I referred before to some of his sea. He was at the wheel of some of writings. As you tune -in at night you the most famous yachts in American are apt to hear one of his songs being waters. He was friends with Hollis sung, probably by request, as this is Burgess, and was Skipper on the one of the favorite numbers of WHN. Dorothy Q. With Thomas Fleming It is called "Rose of the Evening" and Day, America's foremost yachtsman, to N. T. G.'s words Al Piantodosi. and editor of the "Rudder," he was author of "The Curse of an Aching (Top) "Granny takes the wheel when off shore - to sail to Rome in a twenty -one foot 280 miles outside of Boston. (Center) A trip Heart," etc., wrote the melody. The ill during winter in Boston Harbor. (Bottom) N. song is dedicated "to our own Broad- boat but was unfortunately taken T. G. landing a 14 -foot sword fish that weighed so that Day made the trip with an- 480 lbs. way"; or you may have been fortunate other crew. Many a yacht he took a couple of years ago to see a poem around Cape Cod on a commercial ba- drifted into New York, Loew got hold called "The Liner Speaks to the Fish- sis. Canoeing to Block Island, seven- of him again and showed him all his erman" in the Ocean Number of the teen miles off the coast, was an incident theatres and so for the last eleven "Mentor." Perhaps you would like to in his life. In the course of his wan- years the name of Nils Thor Gran - hear N. T. G. tell how this poem came derings he discovered the old Convict lund has come out on all publicity for to be written : Ship in Boston harbor. There it lay the Loew Theatres. "Three years ago in the summer i at the wharf and it's owner had very To see him today, tall and slim, and (Turn to page 56)

www.americanradiohistory.com WGY Players running a horse race scene in "The County Fair." It doesn't look much like a horse race, but it sounds like one over the air

Broadcasters ducation via Radio Dr. Frank H. Vizetelly, Dr. Clifford Smyth, giving Prof. Godfrey Ludlow, Vitali Koretsky, us and other educators constantly on the air By Mrs. Christine Frederick

HAS long been an established talks on words." Ile has been bulle- the largest vocabulary in the world - ITfact that most people learn by word tined as "the man who never mispro- 455,000 words." of mouth and by listening, a great deal nounces a word" and "the person with I had rather a definite set of uncom- easier than by reading. Since this is fortable qualms about meeting this so, I can conceive of no greater boon dean of lexicographers, feeling that his to education than radio. It has prac- bookish attitude might overwhelm and tically taken the English language by intimidate me. But not this word the ears and turned it upside down. wizard ! Back of a barricade of books Nothing since the war has had such and papers about his desk in the office a startling effect upon our basis of of Funk & Wagnalls, of communication. whose N e w Standard One of the most interesting peo- Dictionary he is manag- ple who have brought to us educa- ing editor. It seemed to tion from the air, is Dr. Frank H. me likewise that he was Vizetelly, LI,.D., Litt.D. a regular good fellow. He is a dictionary and Dr. Vizetelly looks encyclopaedia man - lit- upon words as an artist erally ; yet he is delight- upon his palette of color. ing a multitude of listen- "The dictionary is the ers. I wanted to see per- color box of speech," he sonally this man of said, "and speech is the learning who is a feature force that sets the wheels of the \VOR programs. of action in motion; it is I consider the popularity more than that. 'It is the of his talks a striking medium that steers the sign of the times. A ship of human affairs." radio reviewer in one of "A dictionary is like the New York papers some great ocean trader has said that "there is -a Leviathan just ar- nothing more interesting rived in port. It is laden in the whole world of with cargo from every radio than Dr. Vizetelly's Godfrey Ludlow of the WJZ staff and his priceless De Rougemont Stradivarius land, with the harvest of 42

www.americanradiohistory.com MAY, 1925 EDUCATION VIA RADIO 43 every clime. It resembles a vast clearing wizardry-this new invention -radio !" mental picture of this charming man house where one meets all sorts of men. "Radio ! Never in the history of who has with good reason been called After all, words are not altogether un- science has an invention gripped the the "King of Your Vocabulary." like the persons who use them. In the fancy and interest of the people as has dictionary we come into contact with the magic a multitude of words that seem like of the air. the shadows of men -scholars, dandies, Naturally a spectacled professors of science, anti- brand new quated words, the querulous archeolo- AT o c abulary gists and grumbling at modern times had to spring men; new words, fresh and like saucy boys just launched into the world with into being letters of recommendation from some to cope with the well accredited source ; common words ; shad- ings of malignant words ; bombastic words - the bullish phrases of the braggarts, the technique in affected nobles of recent rank ; shame- this new less words -the dwellers in Babylon - field t h a t that are barred from polite speech; for- had to be eign words -travelers who have lost labeled and their way." expressed." I was charmed with the manner in "Radio which Dr. Vizetelly brought out this has peppered

Frank H. Vizetelly, LL.D., Litt.D., Man- aging Editor of Funk & Wagnalls' New Standardized Dictionary N THIS wealth of "larnin" that is I so plentiful through the air-almost as plentiful as the very air we breathe, there is an interest in this education to me because it not only gives you "isms" or technical, detailed studies, but also because one jumps from such a "class in words" as I have just outlined by Dr. Vizetelly, to-by a mere turn of Dr. Clifford Smyth, Editor, the International Book Review the dial -a famous tenor who has just made his debut via radio through array of words as personalities. I was the whole dictionary with new words \VEAF recently. Hearing tenors, how- breathless at being surrounded by so from 'auto -dyne' to 'zymo -dyne' like a ever, is not enough for me. I like to many people I had known so long -yet charge of buckshot. There are over see them, and I like to bring them to who remained in the background of two hundred words with the prefix you, and so here is Mr. Vitali Koret- my mind to be picked out like a special 'radio' alone which would spread over sky, of the Moscow Opera Company. dress for a special occasion. I wanted at least a page of the dictionary. I Mr. Koretsky is a product of the Italian to become better acquainted with these don't think it would be amiss to state School and finished his studies in the fellows whom I really knew back in my that the language has been enriched by Imperial Petrograd Conservatory of unconsciousness. about five thousand vocabulary terms Music. He was engaged in the Petro- "Tell me more about words," I by radio. The modern dictionary has grad Opera and also appeared in opera urged Dr. Vizetelly, and he continued : become almost a code -book of radio. in Odessa, Kief, Moscow and other "One points to the mistakes that we Also the average person has increased large cities of Europe. His repertoire make ; another gives friendly advice ; a his vocabulary through radio. How includes twenty operatic roles in five third shows us historic facts; a fourth many? Well, I don't know-I think different languages. He has sung be- explains popular tradition. And as we the fan -the dyed -in- the -ether variety fore many of the crowned heads of proceed, we dream, and learn language, has enriched his fund of words by at Europe ; has given concerts in Con- history, morals, poetry, science, sports, least two thousand." stantinople and London, Athens, Paris, and trades. Where can more be f ound "I'll never miss you over the radio," Nice, Monte Carlo and many other in any book ? Believe me, the romances I told him as I was leaving, and I knew important cities. His most unusual ap- of all written history are bound within it was true. I can't afford to-for in pearance was a radio program given the covers of the dictionary." addition to what I could learn, I knew from Paris and broadcast especially for "What ?" I asked him, "about air each time I listened there would be a (Turn to page 54)

www.americanradiohistory.com The in Broadcasting y Dorothy Brister Stafford

..I )own in Park Row's inky grime From l'iltsburq -"We are playing the next of one's fellows to everything under the sun Where I used to spend my time, number for Mr. J. C. Green, who sailed resulted in accurate notes being taken the \- servin' of his majesty, 7'hc Press -" this morning on the Olympic." morning after the fifth Victor concert, when, From Canada- "Anyone finding a brief -case as WE lIAI) a god yclept Human Interest. you recall, no attempt was made to play lost possibly on Tenth street, containing One Kelley, a red -headed tyrant who down to the listeners -the entire program a marriage license, reigned supreme on the city desk, was will confer a great consisting of standard selections of the high- favor on the groom by returning the cult's high priest, and many a sob- sister same est class, without a single popular number. to 44 Blank street." contemplated a hasty dive off the bridge in The waitress who brought our toast, From /at'ana- "One an attempt to satisfy his voracious hunger l may now ride- - whispered, leagues for the Human Interest Story. on the Ah- vat -na. Coo -ba tram- "I'll say that was some swell concert last cars for the small sum night. Kelley now runs a chicken farm out in of - - -" I never heard a woman sing like a We forget how far or for how bird Michigan, and if by any chance he owns a much, but before." it sounded like cheap radio set, one can imagine the turmoil of his transportation. "Did you listen the entire hour ?" At Christmas time, a soul as he listens to the wealth of "H. I." father and mother "I'll say we did. I don't know much about sending greetings pouring from his loud speaker, only to waste to a son somewhere at a that kind of music, but it was great." mission on I itself on the desert air. Life and death, joy ludson Bay. The musical critic unfolded his paper. and sorrow, quirks and twists of the dizzy To our way of thinking, the outstanding "Superb," was his comment. "De Luca round we call existence -all roll out upon the touch of that week, was the catch in the was in fine voice. But do you suppose it got voice the statesman, listener in a never- ending medley-surely the of eminent, old as he over ?" strangest conglomeration that has ever as- rose to respond to the eulogies of his friends, The postman, a notorious D-X-er, "Well, on occasion sailed the ear of mortal man. Even the the of the dinner in honor of his my wife was sold on radio last night. She eightieth birthday. We almost cynic admits there is something new under felt it was a said it was the first whole concert I ever shame for the microphone be the sun, and pauses in his amused tolerance to there to let her listen to. That Italian was great." register every inflection his of an expensive plaything, when some of emotion as he The teller in the bank confessed, "I've strange, wandering meteor of unfamiliar tried to steady his voice for a dignified re- fallen. Just ordered a radio set. Heard the sponse. And yet, we suppose thought dashes across his orbit and brings many a dial- concert last night, and if that is the kind of t wister wondered when him up standing. Schenectady would entertainment you get, I have been missing finish broadcasting that interminable dinner a lot." and give them some jazz! Tom was shining my shoes. DEAR Daisy Dumbbunny rendered her Sentimental slop? Possibly. But if you're "Did you hear da nica music last night?" verdict the other day. human. the radio will get you. lie asked, between rubs. "We got tired of our radio in a month. A "Why, have you got a radio set, Tom ?" It's all the sane old stuff, and then it kept "Sure. Joos a two -tube. But, my, she Charley from going to the pictures with IT SEEMS to an innocent bystander that coma in swell. Like -a they sing in the old much of this hullabaloo in regard to poor country." Poor, clear she find Daisy! What can in radio programs might be cleared up by a ( No, Tom is not an Italian. He's a the movies to compare to the slices of real little missionary work among the listeners, Greek.) life that cone to us who twist the dials? rather than by the continued harping upon The laundryman, who builds a set a month. We recite a few vagrant memories of a time the stupidity of station managers. "Say, do you know I never turned a dial before we began to make notes -any one of If Owney Oleson, of Bird Center, could be for an hour. Just tuned in New York and which would have sent Kelley nose -down on restrained from rushing to the nearest ate it up." a red -hot trail for half a column. Western Union office, and wiring his ecstatic "But did you like the program ?" Came "The Drug this from Texas- Smith reaction to "Doodle Dee Do," played upon I)id we? \ \'ell, it was the first night in a is sending a Company out call for blood the harmonica from the O. K. Plumbing long time that I gave Zion City the go by. to save the of a Shop, life young woman." the manager of that station might re- But 1 never heard that kind of singing ( Name and address given.) "Any train from repeating the offense. The moving before." healthy person between the ages of 25 picture producer who went on record with The music lovers -they now frankly fish 40 and who will submit to a transfusion, the immortal confession that his success was for invitations to a radio party, when there call their store at 118 Main street." due to making pictures for a clientele with is a real concert on the air, but it is the From somewhere south-"Anyone knowing the intellect of a nine -year old child, evident- reaction of the many who have never had John Robinson. 26" ( description fol- ly knew his business; and compilers of radio an opportunity to hear good music that lowed 1. "tell him to come home at once. programs doubtless started out with the causes one to wonder. It seems unnecessary I lis wife is dead, leaving a day -old baby. same idea. Anyone who thinks that the to worry about the future of radio. If the Robinson frequents race -tracks and pool- majority of the stations are not themselves peuple want the best, as they apparently do, rooms." aware of the awfulness of their brand of they are going to get it. .-1 touch of comedy front Memphis-"George hokum, should have heard what issued from A A Brown, 13, and William Johnson, 14, left our parchment speaker the other night. 6 home yesterday in a Ford car with red The studio we privately call "WW," ()l.:, the advertising that comes along sport body. Notify their parents. They ( World's Worst), read a long list of lauda- D with radio programs like the lettuce in were accompanied by two shot -guns and tory telegrams, and then, in a perfectly seri- a chicken sandwich, bother us so muchly? two hound clogs." ous voice, the announcer said, We scarcely think so. One writer waxes From Detroit -"Our orchestra will now play "This is the world's greatest station warmly indignant over the statistics that the the Lohengrin wedding march for Miss broadcasting one of its refined, sacred con- radio public is paying $1,000,000 per day to Gussie Daly and William Betz, who are certs. Tommy Tubbs will now sing, in listen to advertising. BUT -the publication being married at the bride's home in response to many requests, 'The Old Horse in which this article appeared carried 99 Toledo." Fly.'" pages of advertising to 82 of reading matter. From Kansas City-A request to search for But do they want better things? Unquali- The advertising paid for the meat in the two brothers, whose parents had been fiedly, yes -after they have heard them. magazine, just as it pays for the talent in the killed in an automobile accident. One's insat'ahle curiosity as to the reaction (Continued on page 72) 44

www.americanradiohistory.com The trials of

a song -writer Mr. T. P. Alley By Earl 'Keeves

keeps him had slipped on a banana, tossed out by pulling the quick stuff that MR. T. P.- otherwise Tin Pan "We gotta collect, his some insignificant western house. on the payroll. -Alley put his feet on all." in the into that's desk, stuck his thumbs VERY slick lieutenant burst "Collect from an ether wave, Son ?" his cigar armholes of his vest and tilted A the room. says Mr. T. P. Alley, rising to the ceilingward. "Moron," said T. P. heights of irony that generally goaded He smoked cigarettes in the days "Lissen," said the newcomer, pass- hirelings into thinking up a good the his before uplift- our -youth magazines being the insult. He sprang from one - worth money in his pocket. gan writing him up. He prefers unrennovated portion of the Village "Think again. This is a game of put, them yet, but a fat cigar was Front. himself, but "moron" wasn't currency this broadcasting, ain't it ?- There's no Mr. T. P. Alley's feet were on his when he left, and he didn't get it. take to it. Everything's give away, gotta desk because he was Thinking. He "Lissen. Boss," he said. "I ain't it ?" needed Front and he needed Thought. good one. Ever hear of radio ?" This "Sure, boss, but it says here that a Outside, beyond sound -proof walls, was, oh, ever so long ago -over two hundred and fifty million dollars worth there was much chatter. That was as years." of radio sets has been sold in a year. it should' be. In the long room many "Yeah," said T. P. "Go away. I An' where they's that much money, passed in and out, giving the appear- got troubles." they's always a way to get our'n. We ance of busy -ness. An insignificant "Sure, I oughta know : I carry 'em," ought have anyway three to four lad largely embellished in not- too -quiet was the come -hack. He held his job million mita radio." raiment exchanged persiflage with a by being quick, like that. "You oughta Mr. Tin Pan Alley put his feet on pair of pippins. They were flattered. have 'em, spending millions pluggin' the floor suddenly. Several times a year he dragged down songs like you do, and you never "Torrid Tillie," he said, and writ checks bigger than the Secretary of thought of radio. W'y, hundreds of that one down, quick, for amplification State gets for a year's diplomacy. His thousands lissen at night already, an' later. "Hop to it. Sic 'em." Get your songs sung "Hottentot Tot" was a scream. And a its gonna grow. III. ride in an elevator with a West Indian by wireless. It's the biggest hunk of darky or a trip as far south as the free advertising y'ever saw." AYEAR passes, bringing us almost Battery was likely to inspire him to a Mr. T. P. Alley's feet came down. to NOW. Mr. T. P. Alley sits new Mammy song hit most any time. "Hot Poppa," he said. And wrote with his feet on his desk and his The pippins were advisedly flattered. that one down quick, so his mechanics thumbs in the armholes of his vest ; but He spent painlessly. could build a musical vehicle around the bold, tip -tilted cigar has been re- placed by a cigarette, which droops. side of the room were it. Nothing was wasted, here. Down either The long room outside is almost quiet. enclosed cubicals containing pianos II ( Turn to page 73) and open mouths. In such a setting A YEAR passes. Mr. T. P. Alley open mouths do not denote hungry sits with his feet on his desk, his birds- though they may be hungry - thumbs in the armholes of his vest and but "artists" trying out "hits." The his fat cigar tilted. He's waiting for stickier hits go into vaudevillian circles his slick young lieutenant to come in and elsewhere-for us. and think for him. That's what he's Still further back, hidden away -a hired for. busy mailing room, from which 23,000 He bursts in, waving a paper. theatres, 17,000 orchestra leaders and "S-a -a -y, Lissen," he says. "This is 7,000 music dealers get free copies. moider. It says here they's ten millions This eats up a President's salary in lissen to the radio every night. An' a few weeks. the big screams is using our music for Mr. T. P. Alley was burred in nothin'. A prize lotta saps Thought. All this was terribly ex- we been." pensive. For a moment his faith wav- "Yeah, we're often that," ered: Barnum did not seem to be right. from T. P. A., thinking of The public was a - what was that overhead, and things. "It's word that had come up out of the a habit. Break it." Village lately ?-oh, yes, Moron. The 'Sure, that's what I came public wasn't buying. Moreover he in for," says the young fella, 45

www.americanradiohistory.com Tune into some of the cl3y feature pro- Dr. alph grams at L. `Power

has a fire warden and been re- RADIO has charge of Stur- sponsible for tevant's Camp dur- many things but ing nine months of no probably stranger the year. Thirty -five story has been told years ago old man than that of Norma Sturtevant located Gregg, dramatic so- his claim and the prano, who is once original log building, more singing from now the property of KHJ and KFI in the United States Los Angeles. Forest Service, still After years on stands. vaudeville circuits During the long Miss Gregg made a winter evenings study of noses be- Heideman was wont cause hers didn't to hitch his little exactly suit her radio set to the needs and so she portable phonograph had a new one fa- for use as a loud shioned by I)r. Wil- speaker. The radio ham E. Balsinger, programs brought famous Hollywood him the best in mu- A l a s ti c surgeon. sic and two years Now she has an im- ago, he began to buy perial nose along all sorts of musical the design bestowed instruments a n d by nature on Queen books of instruc- Mary of England. Dave Heideman, denizen of forest and stream, spends his life in the Sierra Madre Mountains and tunes in to radio programs to which he adds his own accompaniment on a variety of tion. Norma Gregg has instruments Now he can give composed some fifty a good imitation of song hits, her most famous num- will be heard on many KFI and KHJ a one man band for he plays the ber being "Margharita" and many programs and already radio fans on banjo, guitar, French harp, Spanish Chinese and East Indian operettas as the Pacific Coast are demanding a per- mandolin, wind whistle, ocarina, man- well. She has composed for Eva Tan - sonal appearance so they can see the dolin, and Jews harp -not all of them guay, Julian Eltinge, Louise Dresser new proboscus. at once, of course. The photo doesn't and the late Lew Dockstadder. Her show all of his musical accoutrements best known song hit is probably JACK BAIN'S voice is pretty well but he's playing the mandolin and the "Please Don't Forget Me When I'm known out west. His engagements French harp. He learned to play the Gone," which she composed for Eva as vocal soloist with orchestras includes various instruments by studying the Tanguay. George Olsen's Orchestra in Portland instruction papers and then he tuned Radioland got its greatest thrill in and with the orchestras directed by Paul in on stations and accompanied the hearing about the farewell nose party Ash and Max Dolin in San Francisco. various orchestras that he heard every held at the home of Rex Goodcell, col- Five nights a week Earl Gray and night -playing up in the stillness of lector of internal revenue in Los An- his orchestra broadcast via remote the night in the great out -of- doors. geles, the eve before the operation. control from the Butler Hotel, Seattle, The last seen of Heideman he was The crowning feat of the party was to KFQX and Mr. Bain does the an- on his way to civilization to entertain when Norma sang Tosti's "Good -By" nouncing as well as furnishing the vo- his mountaineer friends and others in memoriam to the nose that was fo be cal refrains for most of the selections. with a varied musical program from totally transformed the following day. At this writing he is the only male Los Angeles radio stations. The climax of the party came, how- announcer of this 1,500-watt Seattle ever, when a cablegram was received station which has a woman as program radio favorites of the West from Fred Duprez, producer of the manager and announcer. TWOhave gone to the Great Beyond and Manhattan Follies playing in London. will be heard no more from KHJ, Until the next season, when she will IN THE Sierra Madre Mountains of KFI and KNX. Harry Hahn, bari- probably go to England. Miss Gregg South California Dave Heideman is tone, who appeared in many prologues 46

www.americanradiohistory.com MAY, 1925 FEATURE PROGRAMS 47 and who has been a radio favorite for man Symphony Orchestra for three played every week either from KNX, more than two years, recently died as seasons, and for two years concert KHJ or KFI. At this writing he is the result of a leaky gas jet. master of the Chicago Symphony Or- on the way to the San Francisco Bay Marguerite de Forest Anderson, chestra. District where he will be located for flutist, who appeared with Nordica, Mr. Lipschultz has often been called a year and will there be heard from Melba and others will play no more the American Kreisler because he KGO and KPO. via radio. Miss Anderson played in New York, Boston, Paris and KJR, in Seattle, is the Pacific London a few years ago. In Northwest's newest station the English City she played operating on 1,000 -watt power many times at Covent Garden at 405 meters wavelength. Most and Queen's Hall and was a of the programs are sponsored by member of the royal family's the Seattle Post -Intelligencer, private orchestra. they being on the air afternoons Once a member of world from 4:30 to 6 and Monday, famous musical gr o u p s she Wednesday and Friday evenings earned a small stipend the past from 8:30 to 10, Pacific time. year playing via radio and lead- The 10 to 11 -hour evenings ing cafe and cafeteria orches- brings music from Ray Robin - tras. Death came as the result son's Orchestra via remote con-

Jack Bain. soloist at the Butler Hotel Prof. George Lipschultz, famous violin virtuoso of much brooding over circum- trol from the Willard Cafe. stances and inadequate funds for Aunt Bunny has a story for the living. youngsters afternoons at five o'clock and the Blind Boys Or- chestra plays an hour program L I PSCHULTZ, violin virtuoso, has been billed every- daily at 12:30. KJR has become where as such, but his first name very popular in the brief time it is George. The son of a well has been on the air and its pro- known Chicago musician, young grams are worthy of this popu- Lipschultz won a music scholar- larity. ship when fourteen years old that gave him his start towards a Los Angeles, the new KFQG,station of the Southern career. (Top and boftpm) Miss Norma Gregg of KHJ and He was soloist and orchestra KFI who has adopted the latest style in noses California Radio Association, leader for four years in various was constructed entirely by its Milwaukee theatres and later, for two toured with Kreisler for twenty -six members. They operate a 100 -watt seasons, concert master of Victor Her- weeks and received daily instruction station on 226 meters from the Ex- bert's orchestra. He has played as from him. For nearly a year this vio- position Park Armory Buildings, many as a hundred and twenty -five linist has been leader of Loew's Mu- Monday, Thursday and Saturday concerts a year when with the Ball- sic Masters in Los Angeles and has nights from 7 to 8 only.

www.americanradiohistory.com lityGR Ensemble A stringed quartet that has become very popular on the air 'By Lloyd S. Graham

ANY student of feminine psychol- As the first notes floated out over the that is almost white in pleasing con- ogy knows that it is rare indeed dining room of the Statler, fourteen trast to her hair. Altogether there is for three or four women to men entered by the main entrance and something about her which reminds work together amiably on any sort of a solemnly marched in single file. The one of Raphael's Sistine Madonna. proposition unless they happen to be coincidence was too much for the group Musically, Martha Gomph is "there." under the guiding influence of mere and it must be admitted that during the All of the group are, but she is espe- man. mirth that followed there was a little cially favored in coming from a highly

Lett to right) Martha Gomph, Mary Reynolds, Agnes Millhouse and Rather nc S.ang Ili contradiction of that theory - hitch in the rendition of the selection. musical family. Carlos Salzedo of perhaps an exception which proves the Several of the (liners thought it was a New York was her teacher of the rule - we present the Hotel Statler good joke also. The group of fourteen harp. Concert Ensemble which broadcasts men who appeared so unexpectedly on Katherine Stang js the violinist of with the regularity of the clock from the first beat of "The Parade of the the group. Everyone around the \VGR and is one of the station's most Wooden Soldiers" were members of Statler consider Martha Gomph and' popular regular features. Moreover, the federal grand jury then in session, Katherine Stang as the inseparables. none of the four have bobbed hair. accompanied by two court officers in See one and you are bound to see the Here are four decidedly feminine uniform. The uniforms improved the other not far away. Miss Stang, too, musicians who have worked together joke. has been a part of the musical organi- day in and day out for months without This ensemble has been on the air zation of the hotel since it opened. The the slightest show of friction and with daily except Sunday for more than Gomph -Stang combination is an old great satisfaction to the radio audience. three months. It goes on the air from one. As children they were playmates There is only one time on record in the main dining room of the Statler, together. They studied together, did which the musical zeal of the four was promptly at 12:45 and continues until concert and movie work together, al- upset even for a moment and then the 1:15. Its fan mail is constantly grow- though it would be difficult to find two cause was from without the group ing and the number of requests which persons more nearly opposites in tem- rather than within. come in is increasing constantly. What perament and appearance than these It happened this way. They had been better proof of popularity could there two young ladies. While Martha broadcasting a radio program when be? In this connection it may be in- Gomph is calm and serene in the face Kenneth Pickett, then announcing for teresting to note that the group is es- of the most disturbing events, Miss \ \1GR, noted that there would still be pecially popular with the Canadian Stang gives one a suggestion of dash some air time to go. He asked them audience. and fire, a highly- strung mental organ- what they wanted to play as an added We introduce them. There is Mar- ism. For instance, Miss Stang lost her number. None of them had any sug- tha Gomph, harpist. She has been on purse one day and soon had the whole gestion to offer so he asked for "The the Statler musical staff ever since the hotel looking for it. She got action Parade of the Wooden Soldiers" hav- hotel was opened. Clever little lady with the utmost swiftness. Like the ing received a request for the number with hair black as the blackest night well known old lady with the lost spec- in the morning's mail. and a countenance marked by a calm- tacles resting upon her forehead, the That was agreeable so they struck ness and serenity rare in this day and purse was found in plain sight on her up-if a stringed quartette can be said age, particularly in such a sophisticated dressing room floor. to strike up-the well known selection. place as a modern hotel. A fine skin ( Turn to page 741 48

www.americanradiohistory.com a Reality TELEVISIONlectrical transmission of colored and moving pictures 'By `Theo. FM. Seu.dsSe-wards o of television has òc- with the addition of an agent to slight- pulses received. The screen can be THE problem to the minds of scientists of ly retard the reaction. Wonderfully made in various sizes, according cupied the in- every country for many years, steady and clear pictures are obtained. the size of the picture desired, possible to One of the cells is shown in figure dividual cells and bulbs being smaller but so far, it has not been The moving pictures in the same lA which represents the picture break- or larger as the case may be. transmit builder A, the simple manner as sounds and speech. er. The cell C consists of a mantle sketch shows the picture Alfred Heinze, which acts as one electrode, a second cell H with lamps I. The light rays A German engineer, direc- has been in the electrode E and the photoelectric sub- pass through the screen in the who experimenting D.C. or field years, has just stance D, which is struck by the light tion of the arrow. Either for over sixteen cur- perfected apparatus which was recently rays travelling in the direction of the A.C. can be used to furnish the with very satisfactory results. arrow. The second organ of the trans- rent required for transmission. tested of In most methods of long distance mitter is the "picture breaker," an ap- In a general way, the principle al- transmission the picture to be sent is paratus actuated by a small electric mo- the instrument, as outlined, was transmitted and received line by line. tor, and possessing 40,000 contacts, all ready known, but various difficulties In Heinze's system, the picture appears of which can be closed and opened had so far proven insurmountable in for in- as a whole in the receiver, the instant again one after the other in one -fif- practice. It was impossible, it acts on the transmitter. The most teenth of a second. Each cell of the stance, to build a contact apparatus important part of Heinze's invention camera background is connected to which could open and close 600,000 in-

from Transmitter--.1

000 from Transmitter

-A- Figure 1

Red I,1,; k ®II í1O11 elllew rriri Red % I Yellow Blue Arrangement of three colored cells Figure 2 to Receiver The various parts entering into the radio television system

of a synchronism be- such a contact point. dividual circuits in one second. That is the creation This tween transmitter and receiver and a Figure lA shows the schematic ar- is where Heinze's work fits in. contact apparatus, which closes and rangements of the breaker B the con- contact system works satisfactorily, opens 40,000 circuits in the fifteenth tact points F and the rotating contact without moving large masses and with- part of a second. tongue G which opens and closes the out an excessively high rate of revo- The process of transmission is as 40,000 circuits. lution. which The inventor has further endeavored follows : The transmitter is equipped From this sender the picture, with a photographic camera on the has been broken up into minute sec- to transmit colored pictures. His background of which the object to be tions separated by an interval of time, method is illustrated in figure 2. The sent is thrown by a strong lens. This is transmitted to the receiving appara- light rays passing through the sending background is divided into tiny unit tus figure 1B, which is absolutely iden- lens E, strike the sensitive photoelec- cells (40,000 to a square meter), which tical to the sender, but is now called tric cell C. A revolving color filter break up the picture into minute sec- the "picture builder.'.' This receives which consists of three segments of tions. The cells are so constructed the picture sections which arrive as the basic colors -red, yellow and blue that any variation in the light thrown electric impulses of varying current in- -is interposed between lens and cell. on them, changes their conductivity, tensity, each of which corresponds to This disc is geared to the contact ap- and thus produces current fluctuations one of the photoelectric cells. The paratus C in such a way that the disc in the circuit to which they are at- same contact apparatus groups these revolves once, to every three contact tached. picture parts on a screen made up of series of the apparatus. Thus the cells To produce this effect Heinze uses the corresponding photoelectric cells, can receive only the rays of one color a substance of his own manufacture, each of which is connected to a bulb at a time. as the others are held back composed of various alkali metals, of low voltage, lit by the current im- by the color filters. 49

www.americanradiohistory.com Appliances and Devices

more compactly The Acme Battery Charger -identically the same 5 -tube This circuit, while neither new nor radical tuned radio -frequency THE battery charger which performs its circuit that is well in principle, has been developed to the high- duty in excellent style and which is thor- est state of perfection by the use of air core oughly reliable and a finished looking in- radio -frequency transformers, in which the strument is the new Acme 1925 model. Some usual losses due to the use of cardboard, models of this line are inclosed in a case fibre or bakelite tube forms have been elimi- which is made of sheet metal with the sides nated. These transformers are tuned by and top pierced for ventilation purposes. The three highly efficient condensers with plates cha rccr i. mounted on rubber feet and noise rigidly connected together to further decrease electrical losses, which accounts for the purity of tone and the extreme amplifi- known for its extraordinary selectivity and cation produced by the Stewart receiver. range with ease of operation and which is The cabinet is finished in dark walnut, and its manufactured by the Marwol Radio Cor- sloping panel permits easy manipulation of poration. the dials. The Blair Receiver The Kellogg Trans -B- Former THE Blair Six -Tube Receiver employing IlE Kellogg Trans -B- former is two stages of tuned radio frequency, the re- a sult of considerable scientific experimen- detector and three stages of resistance audio tation conducted in the laboratories of the amplification is now available to the Ameri- can market. Kellogg Switchboard & Supply Co. With the Trans -B- former the problem was to The Blair Receiver is the result of years manufacture an instrument that would ef- of experimentation in both British and Am- fectively take the place of B batteries and erican Laboratories and represents the per- by means of which 60 -cycle 110 -volt house fected combination of two highly efficient current could be smoothed out and all noises methods of amplification, namely, tuned ra- and vibration generally attending a removed so that the current such dio frequency for distance and selectivity, would be adapt- device is considerably lessened. There is a able to radio. This B battery eliminator switch so connected as to easily change from employs two UV- 201A's as rectifier tubes. A to B battery and the owner of this bat- Tests on this Trans-B- former, a model of tery charger may charge his storage 13 bat- which was sent to our office, indicated that tery by merely throwing a switch. The Kellogg has completely eliminated the line Acme Chargers are equipped complete with hum. It costs approximately one -fifth of a plug, cord, and battery clips. a cent per hour to run and can be used wherever the house lighting supply is 110 - volt 50 to 60 cycle. The advantage of a Rigid Battery Connectors constant supply of B battery voltage such as this delivers, is that the receiving set THEE Sherman Battery Connectors fill a and resistance- coupled audio for tone qual- operates at maximum efficiency all of the long felt need for a suitable means of ity. The result is the exceptional clarity time. The Trans -B- former may be connecting up dry cells. They provide a used of delivery for which resistance -coupled strong, neat, simple mechanical means of amplification is noted, together with dis- securing perfect contact with each cell and tance and volume in any quantity desired. Heretofore, the manufacturers of the Blair Receiver have confined their sales ef- forts to the British market, and they are nosy eliminate the danger and nuisance of a con- one of the largest exporters of radio refused tangle of wires. They are made in ceiving sets in this country. In choosing a two styles, a short clip for series connec- receiving set for His Majesty King George tions and also parallel types suitable for V, the British engineers chose resistance - connecting two or more dry cells in parallel. coupled amplification. The slotted openings have spring contacts This set is being manufactured by the Blair Radio Laboratories. A Stewart- Warner Receiver similar to a lock nut so that the battery nut HE Stewart -Warner Speedometer Cor- cannot loosen. The slots are so spaced that T poration, recently placed on the market, the individual cells are prevented from the Stewart -Warner, Aeromaster, Type with all types of sets. It is provided with touching and a bridge formation prevents TRF -5, radio receiver. The set consists of four taps including connectors from touching the metal battery a common negative and a variable casing. detector tap ranging in voltage from 5 to 35 volts with the variable detector feature of the Trans -B- former the exact A Portable Summer Set voltage necessary to properly balance and stabilize the detector tube. This is of ARECEIVER that is particularly light particular advantage when a soft criti- and compact and easily convertible into cal tube is used as a detector. For the an ideal portable set for summer use, is the amplifier tube two taps are provided Marwol one Baby Grand. This efficiently de- for 45 volts and one for 100 volts. The in- signed, well-built set comes equipped for strument is inclosed in a walnut cabinet storage battery use, but may easily be made of very attractive design. Eft is small enough two to operate on dry cell tubes. While the stages of tuned radio -frequency ampli- to stand behind the receiving set or rest Marwol Baby Grand is much smaller than fication, detector and two stages of audio inconspicuously on the floor near the storage the Marwol Model A -1, it contains -only amplification. battery. 50

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE Recommender EVEREADI IiOUR EVERY TUESDAY AT 9 P. M. (Eastern Standard Time) For real radio enjoyment tune in the "Ever - stations batteries eady Broadcast through good Group." - WEAF New York WFI Philadelphia WJAR Providence WCAE Pittsburgh cost of a WEEI Boston WGR Buffalo IN AN effort to reduce the first WEAR Cleveland WOG Davenport WWJ Detroit woo) Minneapolis radio set, a newcomer in radio often buys il St. faul inferior batteries. You know such "saving" is really wasteful. Tell your friends who are about to buy receivers that the best batteries obtainable will prove to be the most economical. Tell them to buy Eveready Radio Batteries -they last longer and, because they are greatly superior, they give complete satisfaction. There is an Eveready Radio Battery for every radio use. Manufactured and guaranteed by NATIONAL CARBON COMPANY, INc. New York San Francisco Canadian National Carbon Co., Limited, Toronto, Ontario

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www.americanradiohistory.com T radio stations Four Danish stations being constructed to advance communication in the North Atlantic `By O. Lund -Johansen TliE erection of %virc- less stations in Green- tection to fishers in the Ice- land is the fulfillment landic waters by giving them of plans dating from before advance information of corn- the war and designed to ing storms and hard weather bring Greenland into more originating to the west of direct connection with the Iceland. The stations are rest of the world. The cir- being built according to the cumstances of war caused quenched spark system, with the Greenland authorities to an energy of 1 / kilowatt in the aerial, which put their plans aside tempo - latter is rarily, but as soon as possi- constructed in the shape of ble after the war was over an inverted L suspended be- the preparatory work and tween two wooden masts necessary investigations were each 42 meters high. taken in hand, and it is Almost exclusively Danish inter- materials esting to observe that it was are being used during the I)anish Royal throughout and the erection is being visit to Greenland in 1921 done by Danish that connection workers under the guidance was for the of first time established between Danish technicians. the west coast of Greenland Owing to the great distances and isolated and the international tele- location of graph services. connection the stations, the lack of avail- being ntatle able materials and skilled by means of the workers wireless aboard the King's on the several sites, ship. the task in hand is quite a difficult one. The stations are to he The poor erec- / transport facilities ted at Julianehaab, (60° lati- in Green- land and the short season tude ) Godthaab (65 and ° available in which to work Godhavn ( 70° ) on the west - coast being quite impossible in the and at Angmagssalik winter -increases (65 °) on the east coast of the difficulties, but in spite Greenland. The contract for of everything there is no the erection of the stations question Map show mg the location of the four Danish wireless stations that the scheme will be car- has been placed in the hands to be ere cted about in Greenland at Julianehaab. Godthaab and Godhavn on ried out according to plan of the Danish Radio Com- the west coast and also indicating the distances between these various points as well as the distance from and that the stations pany, Ltd. (Dansk Radio Copenhagen to Greenland via the will Faroe Islands and Iceland soon be in operation A /S), who have already and commenced sending out communications, to despatch the necessary hagen, distant about 1500 km. especially of a meteorological materials, equipment nature. and workers. The stations at Godthaab and God - This service will be of the It is anticipated that all greatest four stations havn will be of a smaller size, as they significance in compiling weather will be in operation before fore- the end of have to cater only to local traffic. They cast for the eastern part of Europe, and the year. are being built as tube- stations, with will add The to the security and safety of station at Julianehaab is being an energy of kilowatt in the aerial, shipping traffic fisheries, built according / etc. The new to the Polusen- arc -sys- which latter are similar in form to the stations will also form tem, with an energy an additional of 5 kilowatts in aerial at Julianehaab, but are suspend- connecting link between the mother the aerial. This is in the form of an ed from a main mast of only 52m. in country of Denmark umbrella and her far dis- frame suspended from a height. tant Greenland colonies. mast 82 meters high to 6 smaller The stations at Angmagssalik on the Work is proceeding rapidly masts surrounding it at this in a circle with east coast is being erected at the spe- time and there is very little reason to a radius of about 175 meters. The cial request of the Danish -Icelandic believe that stations the end of the year will are designed with a view to Committee, the intention being first not see the stations completed communicate with and in the Faroe Islands, and foremost that this . station should operation. When a distance that happens a new of about 2100 km., and un- send meteorological reports to Reyk- era will undoubtedly dawn for der normal atmospheric conditions Green- it javik, Iceland, distant about 750 km., land in commerce and economic de- will probably be able'to reach Copen- and so afford the utmost possible pro- velopment. 52

www.americanradiohistory.com 1'l25 WIRELESS AGE - THE RADIO MAGAZINE 53 Lacault Scores Alain/

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LIKE every Lacault development, this new Ultra -Lowloss Condenser represents the pinnacle of ultra efficiency -overcomes losses usually experienced in other condensers. Special design and cut of stator plates produces a straight line frequency curve, separates the stations of various wave lengths evenly over the dial range, making close tuning positive and easy. With one station of known frequency located on the dial, other stations separated by the same number of kilocycles are the same number of degrees apart on the dial. In the Lacault Ultra -Lowloss Condenser losses are reduced to a minimum by use of only one small strip of insulation, by the small amount of high resistance metal in the field and frame, and ZILTR71 VCIZINER by a special monoblock mounting of fixed and movable plates. TUNING CONTROL At your dealer's, otherwise send purchase Simplifies radio tuning. Pencil - record a station on the dial- there- price and you will be supplied postpaid. after, simply turn the finder to your pencil mark to get that station instantly. Easy -quick to mount. Eliminates fumbling, guessing. Fur. Design of low loss coils furnished free with each condenser for amateur nished clockwise or anti -clockwise and broadcast frequencies showing which will function most efficiently in gold or silver finish. Gear ratio with the condenser. 20 to 1. Silver $2.50 Gold $3.S0 To Manufacturers Who Wish to Improve Their Sets The Ultra- Lowloss Condenser offers manufacturers the opportunity to greatly improve the present operation of their receiving sets. Mr. Lacault will gladly consult with any manufacturer regard- This seal on a radio product is your ing the application of this condenser to any circuit for obtaining assurance of satisfaction and guarantee of Lacault design. maximum efficiency.

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"Quality Goods for Quality Readers" www.americanradiohistory.com 54 WIRELESS AGE THE RADIO MAGAZINE MAY, 1925

Education Via Radio staff of \\'1Z and \ \'JY, New York. thereafter, by special command, he (Contsnued from page 43) He gives recitals accompanied by Keith gave a concert at Buckingham Palace. the King of Italy to an assemblage McLeod, at least once a week. Mr. Later he went to Russia and studied gathered by royal invitation to celebrate Ludlow is an Australian, who, at the with Leopold Auer. Mr. Ludlow came the entrance of Italy into the World age of ten was awarded the Gold Medal to New York in 1924, making his de- War. For this occasion Senor -Mar- for New South Wales. At fourteen but at Aeolian Hall, after which he coni had prepared a special receiving he left Australia, to spend three years gave many concerts, the last two of set for the king. in Prague and two years in Vienna which have been broadcast by WJZ. Mr. Koretskv is a charming, reticent studying under the great master His violin is one of the six finest in the type of man and one would hardly sus- Sevcik. When he was seventeen he world. It is the priceless De Rouge - pect that so voluminous and powerful entered the Maester -Schule (Master mont Stradivarius, dated 1703, and a voice were lodged within him. He School) of the Imperial and Royal valued at $50,000 by those who know has the kind of manners that sometimes Academy of Music at Vienna. During such values. Mr. Ludlow not only put us brusque Americans to shame. a two -year tour of Europe, he played plays entrancingly, but the feminine before many crowned heads of Europe, contingent of radio listeners would, if F YOU want another musical treat, making his debut appearance in London they saw him, be quite susceptible to tune in on Godfrey Ludlow, famous at Queen's Hall, and creating such a the wonderful permanent wave he concert violinist, recently added to the furore in musical circles that shortly wears! Real! `HERE is no greater educational force in the world than music and literature. In considering this, then, we have available, for the listening, - talks by Dr. Clifford Smyth, editor of 5ilverflarskall the R A D I O E Q U I P M E N T Literary Digest International Book 105 South Wabash Avenue, Chicago, Review, one of the foremost literary Ill. journals of America and recognized as an authority in its field in Europe. Be- fore Dr. Smyth settled into journalism, Low Loss Parts That he did a great deal of traveling. One of the most interesting trips was, with ARE Low Loss a knapsack on his back, hiking through England, Silver parts are not just "low loss" in name only, for they have been with Shakespeare's grave as designed by McMurdo Silver, Assoc. I. R. E., to meet his goal. Serving as newspaper re- the most porter exacting requirements -to be absolutely right. Each piece and editor, he was later ap- of ap- pointed paratus embodies the soundest of design principles accuracy U. S. Consul at Cartagena, -the Colombia, of each detail has been verified time and again in research labora- where he became an inter- tories throughout the country. ested student in Spanish literature. After serving his term R. A. Bradley, Technical Editor of the "Wireless as Consul, he Age," selected returned to Colombia on various news- S -M low -loss coils and condensers for his five tube receiver. Just paper and political missions. A re- as they are the heart of Mr. Bradley's design, so are they the markable background, and a wealth of prime factors in the success of the Four -Tube Knockout described in the March "Radio Broadcast." valuable material, which later evidenced itself in Dr. Smyth's novel : "The Gilded Man." Since then, Dr. Smyth has been a newspaper man, special writer for Sunday editions of the New York Times, and served as Assistant Sunday Editor. He later became editor of the New York Times Book Re- view, completely and radically changing its policy and making it a live, strong influence in literary life. There No. 105 Low Loss R. No. 301 -A Low -Loss No. 205 Low Loss R. is no doubt of the personality of Dr. F. Coupler, provided Condenser. Grounded F. Antenna Coil. A Smyth, which reaches out to an under- with fixed primary ; rotor type with straight single coil self standing of people ; secondary with neutral- line curve. support- whether through Capacity ing, (as in 105) izing tap and adjustable range .00009 to .0005. No. books or through the radio. rotor. Range with No. Ideal for use in con- with antenna tap. Range 301 -A condenser 200 to junction with No. 105 200 to 550 meters with A NOTHER gentleman who has done 500 meters. and No. 205 coils. No. 301 -A condenser. delightful things for us over the Price $5.00 Price $4.50 Price $2.50 air is Dr. Sigel Roush, whom it is one "THE FOUR TUBE of the keenest pleasures to hear from KNOCKOUT" \VGY, you This booklet is a complete description of the Four for get a sense of travel to Tube Receiver described by Mr. Silver in "Radio foreign places almost real. Dr. Roush Broadcast." It contains valuable data on low -loss may easily be ranked among the lead- receiver coil and design in addition to detailed building radio broadcasters of the East. ing instructions. It is invaluable to any one inter- It ested in low -loss receivers. is well known that the air is filled with Price 25c. talk these days -much without appeal that is DEALERS: Write for the name of your nearest -but the joy of radio-if you jobber. don't like it, you just tune out. But to Circulars on these and other S -M products mailed listen to Dr. Roush is to have a real upon request. treat, his radio travelogues are indeed important to our "air" education. "Quality Goods for Quality Readers"

www.americanradiohistory.com MAl', 1925 WIRELESS AGE - THE RADIO MAGAZINE

Turn the inner knob of your Jewett Micro- Dial a full half-circle. The main dial -and the instrument within the set -would move only two degrees of calibration. Move the inner knob but slightly and you cannot even see the movement of the main dial. EXCLUSIVE! But what a difference in reception! Mounts where any four inch dial will mount -Absolutely self-contained- Nothing to be attached to panel- Slight Stations you would otherwise pass over, eccentricity or angularity of instrument and shaft of no consequence; Micro -Dial will without hearing at all, come in clearly not bind -Absolutely noiseless -Knob with surprising strength. mounted on substantial bearing, which prevents wobble -No metal to tarnish or cause body effects; no rubber to deteriorate "Fuzzy" reception ceases to be a problem. -Micrometer and coarse adjustments turn complete circle -Calibration zero right or On high powered, selective sets, marvels of zero left as desired- Mechanism lubricated for life-Lasts forever -Improves with use. tuning can be accomplished with Micro - Dials. Less modern sets prove selective ability their owners never suspected. Make these benefits yours! You simply can't afford to be without them.

Needs only a screw -driver to install -no butchering of shaft or instrument. At your dealer's or, if he is not supplied, send to us direct, enclosing list price, $3.50 each. We will prepay carrying charges.

JEWETT RADIO & PHONOGRAPH CO. 5678 Telegraph Road, Pontiac, Mich. "THERE IS NO SUBSTITUTE FOR THE BEST"

Trademark Registered

croGoods Quality >' for Dial "Quality Iadrr

www.americanradiohistory.com 56 WIRELESS AGE - THE RADIO MAGAZINE From the time he was a youngster, obtaining numerous almost, subscribers. Some N. T. G. Dr. Roush has been a traveler in Europe and a few in Australasia. Speaking and (Continued from page his travels have taken him into His letters soon began to attract 41) innumerable atten- went on my last voyage. out -of- the -way nooks and tion and his next effort resulted in We sailed corners of the earth, places seldom seen doubling his papers. south over Nova Scotia on a little, by the average smelly, dirty fishing traveler. Besides being If you want to take a trip to Tahiti or vessel out of New a member of a polar expedition a few some unknown part of Bedford. I went up to Boston to ship the world with- as years ago, Dr. Roush has drifted on out leaving your job-or your a sailor for my vacation, but nothing comfy was moving at the many an isolated isle in his goings and couch some evening -tune in on Dr. time as there was a fishermens' strike on, I found comings and criss -crossings of the Roush spending hours in foreign but the - Natalie ready to start on a sword -fish seven seas. At first it was difficult parts of the world -and getting back, to hunt. Three days later we were one meet the necessary expense for mind you, in time to put what Mother these Stoner hundred and eighty miles away, up travels, calls the "kiddies" to bed ! but at length the ingenious I)r. near the Georges Bank. There were Roush hit True, most of us want our travels, on a scheme of commercial- our lectures six of us in this forty -seven foot boat. izing his and our music first -hand. "wanderlust" and making it But how many two Frenchmen, two Yanks, a Portu- self -supporting. hundreds of thousands So he organized a of people cannot travel. guese and myself. The captain was newspaper What a mar- syndicate and succeeded in velous thing radio is for these. an ex- whaler, and he could stand more than any man I have ever seen. Be- fore we struck the sword -fish, we struck a gale that blew us south so that we were lost a week. We were nine days out before we saw a fish and then we got seventeen of them. If you know anything about sword- fishing you know it is done just like whaling. One of those I landed weighed four hundred and eighty Only pounds. I caught him at eight-thirty in the morning and it took a two and one half hours struggle to finish him. I drove an eight -foot lance through specialists his eye. The sword -fish fight furiously. And three times in one voyage they ran their swords through the bottom of our boats. When you go into the can make Hotel Waldorf and order sword -fish you get the finest eating in the world. Ít is too rare and expensive for most of us. In the two weeks and a half good fixed condensers that we were out I didn't have my clothes off and I came home with two broken ribs and had run a grapnel hook THE small fixed condensers in your radio set are through my foot. One night after we there to help you get clear reception. had been butchering, a gale blew up. If these When you butcher sword little condensers are not -fish you cut made most accurately the off the head and the tail and throw quality of reception you get -even though your set them over to the sharks which are may be excellent in all other respects - will be following your boat. The decks were greatly impaired. slippery and bloody and we were in a state of exhaustion. Through the You will find that nearly all sets made -in fact over night a great ship bore down toward 90% of them -are equipped with Dubilier Micadons. us ; it was the Aquitinia coming home. This is the name by which all Dubilier fixed con- She was alight from stem to stern and densers are known. standing almost on end as she took the huge seas. The men and women inside Be sure your set -whether you buy it or build who were dancing and dining, had they it- looked is equipped with Micadons. over the railing and seen us They are made by floundering specialists. around in our tiny boat would have said, 'What can possibly drive men to go out like that when they might be stewards or a porter on something much nicer and safer.' And as we crouched there in danger of our lives, the lines formed themselves in my mind of the poem that was later called "The Liner Speaks to the Fish- Dubilier erman ! Men who do work like sword - CONDENSER AND RADIO CORPORATION fishing, do it because of the love of independence, the desire to protect their families and all the other elemen- tal passions that can influence men. Most people have no conception of the "Quality Goods for Quality Reader."

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE

Judging from the inquiries we have been receiving from our readers we are sure you will say "JUST WHAT I WANTED !" Log Your Stations - Get Your Distances By Call Signals, By Cities, By States, By Countries, For the United States, Canada, Cuba, Mexico, The World KNOW THE OWNERS OF ALL STATIONS THE RADIO ATLAS

Each 2 Pages 4 BIG MAPS 14x20 Inches LISTS All Radio Stations for The United States The U. S. Canada World Canada Alphabetical by Signals, by States, by Cities N. and S. America for Long Distance Latest Wave Lengths Mexico Cuba Porto Rico Alaska Kilocycles Locations The World Names of Each map is best and largest that can be Operators shown in convenient form. Red dots Liberal space for your private log and show Radio Centers. new stations.

CONTENTS ASERIES OF DOUBLE -PAGE MAPS. Covering the United States- Canada- The World- showing location of broadcasting, leading commercial and govern- mental Radio Stations. Lists of all United States and Canadian broadcasting and leading commercial stations by location also alphabetically by call signals, with wave lengths and ownership. World Radio Stations, Lists, Etc., Time Divisions, Radio districts and Headquarters, American Radio Relay League Districts with Map and Explanation. THE LATEST LISTS -TfIE COMPLETE LOG: in the most comprehensive, most easily consulted, and most complete form that can be made. Price 50c. THE RADIO ATLAS described above FREE with your new SPECIAL OFFER or renewal subscription to WIRELESS AGE.

SEND THIS BLANK TODAY Wireless Age, -* 328 Broadway, New York, N. Y. New readers Gentlemen ; Please send me one copy of the RADIO ATLAS free and enter can save ... 1 00 my subscription to Wireless Age for one year. My remittance of $2.50 is enclosed. News - Also me additional One Year stand send copies of the RADIO ATLAS at 50 cents each. Wireless Age .... $2.50 $3.00 Radio Atlas ...... 50 .50 Name $3.00 $3.50 Street Special Price ..... $2.50 City State "Quality Goods for Quality Readers"

www.americanradiohistory.com 58 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 bravery of men who go down to the sea in ships." When I first entered the studio at WHN, N. T. G. was reciting "The Rhyme of the Rescued Ones," by Rob- ert W. Service. I took it for granted that he had been an actor in his day, but this is not true. Quite by accident he says, he found that he could recite. "One night I had to fill -in so I picked up a book and read. They liked it. It became one of the most popular features, so we have become very much interested down here in the populariza- tion of poetry over the radio. "I selected it for its high Those of us who remember Clifton Crawford with affection are glad to insulating qualities welcome to Broadway a successor who can handle "Gunga Din" and "Boots" It cuts down the losses in the circuit" with ability and sincerity. You have `HOSE were the exact words est fear of chipping. Radion resists undoubtedly heard Mr. Granlund re- of a prize-winner in a radio warping. It's strong. It's moisture cite some of these. Do not be sur- proof. set -building prize c e s t, It comes in eighteen stock prised to know that he is going to on i sizes and two kinds, black and when asked why he used a mahoganite. make Okeh records of them, something which has never been done as a series. Radion Panel. Like thousands Radio dealers have the exact of others, he had found by ex- size Perhaps the success of WHN is di- you want. The use of Radion by rectly perience that there is nothing the manufacturers of ready -built attributable to the fact that N. T. quite like Radion for real re- sets is almost invariably a sign of G. has worked always on a definite sults. general good quality in that set. policy. He says, Our engineers developed Radion Send for "The policy of the station is not to Panels especially to order for radio. booklet educate the masses. People like lyrics Losses from surface leakage and di- "Building Your Own Set" that they can understand and music electric absorption are exceptionally low. And low losses mean clearer Our new booklet, "Building Your that is really tuneful. Let somebody reception, more volume and more Own Set," giving wiring diagrams, else elevate them. What I want to do distance. front and rear views, showing new is to entertain the people and to bring Easy to work set with slanting panel, sets with some frivolity into their homes." -moisture the new Radion built -in horn, lists proof - resists warping of parts and directions for building I once read an article about N. T. G. Radion is easy to cut, drill and the most popular circuits- mailed in which the author stated that one of saw. You need not have the slight- for ten cents. the remarkable things about him is that AMERICAN HARD RUBBER CO. he so rarely smiles himself. All I can Dept. GS, II Mercer St., New York City say is that N. T. G. must have had a Chicago Office: Conway Building severe attack of indigestion that night Pacific Coast Agent: Goodyear Rubber Company, San Francisco, Portland for if anyone has a good time over his own humor as well as that of other is AMERICAN HARD RUBBER CO. people, this the man. Dept. 65, II Mercer St., New York City We are rather used to thinking of fat men being funny with round, jolly, 1RADION Please send me your new booklet "Building ruddy faces, but the mirthful N. T. ?lie Supreme Insulation Your Own Set" for which I enclose 10 cents G. 1 stamps or coin). is long and lean and lithe, quite jaunty and a bit debonair. His fund of hu- PANELS mor is apparently inexhaustible. He biais, Sockets, Bindin&Post Panels, etc. can see a joke in everything and his Address jests spring so irresistibly to his lips that the contagion of his humor is quite irresistible. Imagine my amazement The MOZART GRAND CO. in discovering his Lapland origin. I Manufacturing fine said, remembering the usual reserve 091 Aiieuiii1eaho that is O IMPPO"E P'rrPTION the inheritance of cold mother `O Easy to Install. Not attached to. but Radio Reproducing Apparatus countries, "Is it typical of Laplanders merely placed under the telephone. Sold with a money -baek guarantee. at 235 -49 Elizabeth Ave. to have such a fund of humor ?" And AT YOUR DEALER er sent by mall complete with Insulated wire Newark, N. he answered, "I don't know, I never upon receipt of One Dollar. J. U. S. A. ANTENNAPHONE CO. met any of them socially." 90 West St. New York City Those of you who have known N. T. G. only through the microphone do not know just what it is that has en- AIMS deared him to the hearts of the workers PERFECT REPRODUCER of Broadway. It is his constant desire Tone loud and pleasing. Hand- BAKELITE to protect the reputation of the chorus some material and design. girl, and to reveal her to the people Black-$22.50 Sbe11-$25.00 RADIO PANELS AMERICAN ELECTRIC CO. SPAULDING FIBRE COMPANY INC. as she really is. From Station WHN State and 64th Sts. Chicago TON AWAN DA, N.Y. he says, "As the friends of the `Great White "Quality Goods for Quality Readers"

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE 59

Way' down here, we broadcast Broad- way and we respect and protect Broad- way girls. There are thirty-six girls Leading set makers use more Thordar- in various cafe shows which I have sons than all competitive transformers used in my appearances on the stage, and none of them smoke or drink, and combined. What better evidence is most of them support their mothers. there that Thordarsons are best? The Broadway girls are fine girls ; I have them at my home, and at my Exclusive! THORDARSON SQUARE COIL parties. Especially Mine are the Zieg- LEAKPROOF CONSTRUCTION feld girls. Mr. Ziegfeld is really wonderful in his choice of girls for char- " acter as well as looks. I like to show these people as they really are. I take i/woÿ L/1dd my microphone back into the dressing R C L rooms of some of the cafes and put on T HERMIODY special programs and get them to talk ZILTIV{'DXnE about themselves, their lives and their MURDOCK experiences so that this impression Qz FR KA that they are wild and dissolute shall be destroyed and they shall be seen Ofct4t, in their true colors as girls who make MICHIGAN T he Thordarson -made layer - their living by jazz, but whose morals wound SQUARE coil fits snugly are above reproach." Deresnadyne around the square core. No air has many titles. Among MALONE LEMON space between coil and core (ex- WHN lost RADIO clusive l ) -no lost energy, no others it has been called the "Birth- MASTER volume (especially on low notes), place of Song Hits." In the one eve- TWA I-a no leaks from primary to cause ning that I spent in the studio I met howls in set. Oversize core pro- Lew Brown, who wrote "Last Night vides 50% larger magnetic cir- 111411.4`J , cuit- minimizes core losses, pre- on the Back Porch," and `'Georgette," vents over -saturation. No rivets Lou Davis who wrote "Will You Re- or screws through core to cause member Me," and "I'm Sittin' Pretty short circuits or eddy current in a Pretty Little City," Abel Baer, HARTMAN losses between laminations (ex- AUDIOLA clusive !) Do you wonder Thor - author of "Mamma Loves Papa," and darson produces more transform- "The Wabash Blues," Ira Schuster, EAGLE ers for more makers of quality and Johnny White, who collaborated GLOBE AND sets than all competitors cotn- MANY OTHERS d on "Mr. Radio Man," "Ten Little Fin- bined? gers," Ray Henderson, of "Follow the lea Uniformity Guaranteed! Thordarsons run absolutely alike, ab- Swallow," Henry Santley, Al Wohl- solutely uniform: always match up" i1 ther perfectly: always amplify evenly over man, and a half dozen others. WHN W " the entire musical scale. Satisfaction has direct wires in over thirty Broad- ,Ì,U . unconditionally guaranteed by the world's oldest and largest exclusive way restaurants, cafes and ball- rooms. transformer makers (transformer them all the specialists for 30 years). For the N. T. G. is in and out of finest amplification obtainable at any time and their leading spirits come and cost, follow the lead of the leading set ! makers -build or replace with Thor - go at WHN and among them you will darsons. Audio Frequency: 2 -1. $5; find many of his discoveries. It was 34-1. $4: 6 -1, $4.50. Power Ampli oRDsON fying, pair $13. Interstage Power he who brought to light Harry Rich- lit SuP -a, Amp., each $8. Any store can supply voti. if dealer is sold out, order man, of the Club Richman, and Al TRANSFORMERS from us. Wohlman, of the Wigwam. Don't think that N. T. G. does with- Write for latest hook -up bulletins free! out any home life. To be sure Mrs. THORDARSONELECTRIC MANUFACTURING CO. in her home in Narragansett Granlund WORLD'S OLDEST AND LARGEST EXCLUSIVE TRANSFORMER MAKERS Bay is a "radio widow" but "Granny" Chicago, U.S.A. as he is so affectionately called, runs home to see her and his ten -year -old Australian Representatives: Wallart Electric Mfg. Co., Ltd., Sydney daughter as often as possible, some - times dropping down on them in air- planes. There he has his boats. He has owned Ingontar, one of the most famous cat boats, and on the occasion of his visits home he and his daughter On L a n d a n d S e a Register-ad Trade Marks It's always the operator with a Vibroplex th.0 have great times. She is a chip of the V,hrople. Bus Lightning Bus gets the job. old block, driving a canoe over miles Martin's New and Improved of the ocean fishing, canoeing and V I B R O P L E X her father does. Next Transmits perfect signals at any desired speed and climbing just like with the least effort. Easy to learn. Makes every summer will see him sword -fishing operator a good sender. Used by over 85,000 operators. again. What is there more I can say Special Large Contacted Vibroplex Has 3/16 inch contact points to break high !25 about him? He has known life in current without use of relay. Special model.. J more phases than practically any one Agents Wanted -A Money Maker rough aast THE VIBROPLEX CO., Inc. on Broadway. He knows its 825 Broadway, N. Y. City; Brooklyn, 796 Fulton St. places and he knows its smooth places. Japanned Base, $17 Nickel -Plated, $19 Simply press the lever --the machine does the rest. Perhaps that is why we love him. "Quality a]oods for Quality Readers"

www.americanradiohistory.com 60 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 171 , Aerials "By rnerlt raised to an eminence"- 1! ,t 5 (Continued from page 23) near the center, is generally considered far less efficient. Every connection in both aerial and lead -in should be carefully soldered. S. S. Santa Teresa of the Grace Line. The Radio op- Do not overlook this point, or you may erator is a graduate of the find yourself using Radio Institute of America. only the lead -in as the aerial after the wire has been out in the weather for a few months. A connection which is not soldered may RADIO become - corroded and set up such a high resistance that incoming signals The Career will not get past it at all. Make sure, also, that the aerial is insulated care- for You! fully. The side of the house or branches of trees will not help any if NATIONAL Velvet Vernier Sailing on ocean steamers - they are touching the wire. CONDENSERS and DIALS with good pay and excellent Particular care should be taken are used by where the lead -in comes into the LIEUTENANT FREDERICK H. SCHNELL quarters -at liberty when- ITraglr Manager. American Radio Relay League) ever the ship is house. The wire should not only be for communication with amateurs on wave lengths in port -big from 20 to 125 meters from the Pacific Fleet during opportunity for advance- insulated, but should also be run the cruise to Australia and return. through an insulator In recognition of his splendid achlesements in short- ment along a score of dif- of some kind. wave experiments. Mr. Schnell oas invited to join the ferent lines: If the building has steel frames Pacific Fleet anti was commissioned a lieutenant. all these help For his short -wave transmitter he has chosen to make radio operating a around the windows or metal frame NATIONAL Condensers with NATIONAL Velvet screens, this Vernier Dials. lucrative and highly metal will have a decided NATIONALS won this high honor only after re- severest th, effect tests. one of which was the application of spected profession. on the uninsulated wire and also 6,000 volts A. C. at 90 meters without That tells a breakdown. on the radio set. the triumphant truth of the merit of NATIONAL Condensers. What further proof of their Thorough Training Essential The connection between the light- efficiency and dependability could you ask? If your dealer Is not yet stocked with NATIONAIS for Success ning arrestor and the lead -in should send us his name. We III see that you are sup be taken plied here are the prices: Only skilled care of by soldering, in fact TRANSMITTING CONDENSERS: men can suc- .00025 (23 plates) f11: .00046 (43 plates) $16. the Board of Fire Underwriters state RECEIVING CONDENSERS: ceed in radio. But with the Capacity. that all connections in the aerial, lead - maximum, MF .001 .0005 .00035 .00075 course of instruction offer- 3%, in. Bakelite Dial $7.25 $6.25 $6.00 $5.75 ed by the in and ground shall be soldered. Thus 4 in. Bakelite Dial 7.50 6.50 6.25 6.00 Radio Institute it will be NATIONAL COMPANY, Inc. of America. success depends seen that you have a double 110 Brookline street, Cambridge, Mass. barreled affair. You should do it to Sole Licensees for the manufacture of the Na- only on your own applica- tional Regenafornter under the Browning-Drake tion to study. Have you get the best results and you should do patents. perseverence? Can you it anyway to protect your own insur- stick? Then follow the foot- ance. steps of 7,000 successful So much for the outside aerial. We Radio Institute graduates. next come to the inside aerial. This is not a loop aerial despite the fact f, Study Radio In Spare Time that a loop also works inside of the house. An inside Even though employed at aerial is exactly the present you can qualify same thing as an outside aerial only ANTENELLA for it is put up inside of the house instead your U. S. Government of outside. No Aerial or Antenna Needed Commercial Radio License in a few months Of course the straight span of wire of study cannot Tie Complete in your home. Because be secured and for this reason Efficient anal Radio Institute is conduct- the inside aerial is usually slightly in- Economical ed by the Radio Corpora- ferior, but with a powerful receiving tion of America, you are as- set the difference in results will be so Aerial sured of a thorough course small as to be hardly noticeable to the that average listener. embraces every phase Why Only $1.25 of modern radio. Mail the As for the aerial itself it may take pay $10 coupon now for on many different forms. The favor- or more to have an aerial spoil the more infor- appearance of your home? Ante - mation about our special ite seems to be a wire fastened to the picture frame nella eliminates all unsightly wir- Home Study Course. moulding in such a way ing, lightning arresters, etc., and that it runs around the room and down precludes the possibility of dan- Radio Institute of America the hall or around several rooms. gerous grounding on a power (formerly Marconi Institute, Only one end of this wire is fastened line. It also stops "canary Established in 1909 bird' to the aerial binding post on the set re- radiation from nearby oscillat- 326 Broadway New York City and the ground connection is made in ing sets interfering. ----- Cur HERE------1 the usual way. The Radio Institute of America wire may be ANTENELLA I 326 Broadway, New York City either insulated or bare or for that is not only ;, real dr-S.n ice getter, but I Pleas- send me full information about your matter a metallic tape, one will work also overcomes troublesome static. 1 Home Study Course of radio instruction. just as well as the other and the fact At your Dealer, otherwise 1 am interested in the complete course in. send purchase price and you eluding code instruction. that the wire is insulated will make will be supplied postpaid. U I am interested in the technical course not the slightest difference to the in- without code instruction. Chas. freshman Co.lne. coming waves. studio sl.cceloe gad S I Name s a.¡y Some very particular fans use small FRESHMAN BUILDING I Address 240-248 wtsr 40rn Sr -NEW YORK.NY insulators to hold the inside aerial from the wall while others simply "Quality Goode for Quality Readers"

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE tack the wire to the moulding where it will not show. Glass pins of the kind used for hanging pictures are particularly effective Earn50 to $200 aWeek for this work, and will present a neat appearance. I f these are used with a fine cotton covered wire the aerial will be practically in RADIO invisible, especially if the walls You can! Hundreds of ambitious men are already earn- are finished in a light color. ing thousands of dollars in this wonderful new industry - you, too, can get your share. Mail coupon below for Free Of course, if the building in which Book which describes fully the amazing moneymaking such an aerial is used, happens to be opportunities in Radio and tells how YOU can earn from all steel construction with metal lath $5,000 to $10,000 a year. The astounding growth of Radio has created thousands of under the plaster, the aerial may be big money opportunities. Millions of dollars were spent dur- 'completely ineffective. ing the past year on Radio and thousands of young men are In one or two needed right now to meet the ever -increasing demand of work. cases where this has been tried, the Men are needed to build, sell and install Radio sets - design, test, repair -as Radio engineers and executives radio set has been so completely -as operators at land stations and on ships traveling shielded that not a single the world over-as operators at the hundreds of broad- thing pene- casting stations. And these are just a few of the trated, not even static. wonderful opportunities. For the usual non -fireproof apart- Easy to Learn Radio at Home ment house or the home in the sub- In Spare Time urbs, such an aerial is excellent pro- No matter if you know nothing about Radio nos,, you can quickly become a Radio Expert by our mar- vided an outside antenna cannot be velous new method of practical Instruction- instru: tion which includes all the material for building the erected. The latter will. however, latest up-to-date Radio apparatus. always give superior results and is to Scores of young men who have taken our course are already earning from $75 to $200 a week. Merle be recommended wherever possible. Wetzel of Chicago Heights, Ill.. advanced from lineman to Radio Engineer, increasing his salary Of course any type of receiving set 100% even while taking our course! Emmett Welch, which will on an outside aerial right after finishing his training, started earning work $300 a month and expenses. Another graduate is will also work on the inside kind, but now an operator of a broadcasting station -PWX of Havana, Cuba, and earns $250 a month. Still an- the distance will be somewhat cut other graduate, only 16 years old, is averaging $70 down. If you get good results with a week in a Radio store. Wonderful Opportunities an inside aerial, rest assured that you for a government first.class commercial license. Hardly a week goes by without our receiving ur- It gets you the bigger paying jobs in Radio. will get better results on the outdoor gent calls for our graduates. "We need the services kind. of a competent Radio Engineer," "We want men Sond for FREE RADIO ROOK with executive ability in addition to Radio knowl- Learn more about this tremendous new field and The loop aerial is in another class edge to become our its remarkable opportunities. Learn how you can local managers,' "We quickly become a Radio expert and make big money as it works on a somewhat different Pay Increases require the services of in Radio. several resident dem- principle. It can only be used with Over $100 a Month We have just prepared a new 32-page booklet onstrators" -these are which gives a thorough outline of the field of Radio sets which are designed to operate with I am aver- just a few small indi- -and describes our amazing practical training in aging any - cations such aerials. Usually it takes a set of here from of the great detail. í75 to $150 variety of opportun- This Free Book, "Rich aV five or six tubes using either the re- a month ities open to our grad- Rewards in Radio," will more than I uates. be sent to you without flex or the superheterodyne principle. was making Take advantage of the slightest obligation. before enroll- our practical training Mail coupon Sets such as the neutrodyne or other ing with you. for it I would not and the unusual con- now! For a short time tuned radio frequency circuits will not consider $10.- ditions in Radio Io we are offering a re- 000 too much step into a big paying duced rate to those 1Efor the course. position in this won- work successfully unless the first in- who enroll at once. (Signed) A. N. Long, derful new field. Radio Act promptly and ductance is entirely cut out of the cir- Greensburg, Pa. offers you more money save cuit and even results gen- than you probably then the are Doubles Salary ever dreamed possible National erally far from satisfactory. The out- I can very -fascinating easy work easily make -a chance to travel Radio Institute side aerial is best for such sets. double t h e and see the world amount of if Dept. 46 GB money n o w you care to or to take The loop, like the other aerials, may than before any one of the many Washington D. C many I enrolled Radio positions all assume different forms, but with you. around you at home. NATIONAL RADIO INSTITUTE there are only one or two really effic- Your course And Radio offers you Dept. 46.G D. Washington. D. C. has benefited the slightest obligation your me approxi- a glorious future! I'len.e send roe without ient arrangements. One of these is The National Radio Free Book, 'Rich Rewards In Radio." and full detalls mately $3.000 Employment Serviee. Please write over and Institute is America's of your special Free known as the spiral wound and the above what I would have Pioneer Radio School other the box loop. The latter is earned had I not taken It. -established in 1914. Name Age (Signed) T. Winder, Our course is an ab- Address generally . considered slightly better. Grand Junction, Colo. solutely complete one The spiral wound loop is exactly what which qualifies y o u City State its name signifies. A wooden frame in the shape of an X is made up usually about thirty inches across. The wire is started on the end of one of CRESCENT LAVITE RESISTANCES these crosspieces and wound around in ABSOLUTELY NON -INDUCTIVE such a way that it is secured to each 12,000, 48,000, 50,000, 100.000 Ohms JEWLL of the legs. This continues in a spir- List $1.50 Each ally diminishing square. The wire OUR 15 -A RADIO may be held in place on the wooden CATALOG frame by either small brass screws or Describes the most complete line better yet threaded through holes in a ti o rl:il Sizes to Order It S2.50 of radio instruments manufactured. IN ALL CIRCUITS AND RESISTANCE piece of rubber or bakelite which has COUPLED AMPLIFIERS ¶Every radio enthusiast should been fastened to the woodwork. Al- When better resistances are made they will have a copy. Ask your dealer. most any kind of wire may be used bear the Crescent label. 25 Years Making Tubing and Panels cut to order. Good Instruments successfully with a loop aerial, but Dealers write A,r disr mot is CRESCENT RADIO SUPPLY CO. Jewell Electrical Instrument Co. stranded green silk covered wire 1650 Walnut St. - Chicago good as it is more easily handled. The 3 LIBERTY ST. JAMAICA, N. Y. "Quality Goods for Quality Readers"

www.americanradiohistory.com 62 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 size need never exceed sixteen and in the low wave stations and if you do cept in cases where it is close to a many cases smaller wire will work just not have enough wire, you will not regulation aerial or a large mass of as well and will put up a neat ap- hear the higher wave broadcasters. metal. The others are decidedly non - pearance. Provision should also be made for directional unless the amount of wire In the box type of loop, the Bake- turning the loop aerial so that it may is most extreme. In actual experi- lite or rubber strips are laid cross- be pointed in any direction. Loops ments the writer has found that a are directional in effects ways to the spokes of the loop frame their and un- one -hundred -foot aerial running east less this is taken care of you may com- and west in such a way that the end of each is just as effective as one pletely miss some of the distant sta- running north and south. one forms a T. Slots may be cut in If a differ- tions. ence exists, it is so small that it can- these pieces of insulating material and In order to turn the instrument it not be detected. Therefore why worry the wire laid through these. The may be either suspended from the over the direction in which your aerial ends, in both types of aerials should ceiling near the set or mounted on a points? If it is 300 or more feet in be brought to binding posts some- pedestal with a three or four -inch length, it is a diffierent story, but such where on the frame -work of the loop. length of brass rod running up into an aerial as this is worthless in the The amount of wire in an aerial of one of the legs acting as a pivot. crowded air these days. The longer this kind is most important. With the From the foregoing it will be seen the aerial the more interference it will usual .0005 mfd., variable condenser that there are three general types of pick up and the harder the set will be to tune with it is usually necessary to receiving antennae, the outdoor, in- to tune. Fifty feet should be the use about ninety feet of wire. A few door and loop. The two first named lower limit and 150 feet the upper. turns one way or the other may make are the most commonly used while the Use the proper aerial with your re- a big difference in the wavelength latter is primarily for the larger sets. ceiving set and half of your troubles range. Too much wire will cut out The loop is extremely directional, ex- will be ended. Radio Cabinets (Continued from page 26) all around. If you possess a small firmly, but glue, long brads, and some This now is secured in the cabinet lathe you will be all "set" for the next small brass angles on the inside will by blocking and brads. Make a strip job, that of turning the feet. If not do the job. The top of cover is 3/16" around the front of same about %" you can get them turned at a small mahogany glued and bradded down, wide after it is in cabinet. Before put- cost, according to the general dimen- and then all sanded nicely. The cover ting these in, make diagonal saw cuts sions on figure 3. is secured to the cabinet by two 2" on side strips as in figure 5 to take These are drilled with a %" auger brass butt hinges at the back. four slats. and with the aid of glue and /a"' It should project out over the top This whole assembly should be a doweling are made a part of the cor- rail 3/16" all around. little over Yg" from front edge to al- ner posts. Let me warn you here to The doors are held fast closed by low for doors to close. The battery use nothing but hot boiled glue of the snap fasteners recessed in bottom cor- compartment is covered by two more best grade or some day your cabinet ner of each door and cross rail. Brass doors, likewise set 54" from front sur- may take a notion to fall apart. knobs are placed on each door to open face, and fastened shut by snap fas- I am presuming that you are care- them. teners. These should not be hinged fully smoothing all parts by scraper The radio panel is placed in upper directly to sides or they will not open and sandpaper before assembling. compartment back of small doors. A very wide. Rather screw pieces 4" The doors can now be made and ledge should be made about 2" back, wide to sides and hinges will work fitted. These are cut and fitted for to allow for dials and knobs, for panel nicely from this. opening, very carefully, leaving about to screw to. Do not make panel full On finishing the cabinet make sure 1/32" for clearance and varnish. size of opening or it cannot be got that the surface everywhere is perfect Next drill two holes with a h" bit in place. Fill in space between panel and free from dents and imperfections, into edge of door ( hinge edge), al- and front of cabinet with some pieces as every one will show up later. You most through to other side. This will of stock 2" wide. The panel is 3/16" cannot spend too much time on this be found a job that must be done very Bakelite. item with scraper and different grades carefully or you will break through The under compartment is used for of sand paper, and filler. the side. However, with a little care the horn and below that the closet for When you are sure the surface is it can be done O. K. Cut some pieces the batteries. The horn is made of O.K., apply a mahogany stain of the of h" dowel and coating same with stock from egg boxes, clear sides be- penetrating type to the color and shade hot glue drive into hole, cutting off ing selected. This wood is used be- desired. Next apply a good paste fil- flush with edge. Two of these in the cause it is thin and bends ,easily, and ler, leaving it on for about 10 minutes small doors and three in the larger that characteristic being necessary on and then remove with a rag. ones will prevent them from warping, the elbow of the horn. Apply four coats of clear varnish, if your stock was kiln dried in the The sides are cut to the shape as rubbing each coat with pumice and first place, and will not be seen. shown in figure 4, the grain of the water, and when you are done, if you The doors can be hinged to the cor- stock being as the arrow shows up have been careful of every detail, you ner posts now, cutting all of thickness and down. The dimensions can best have a radio cabinet, unconventional of hinge out of door and none out of be obtained by measuring the opening. in regard to the usual design, and one post. Use loose pin hinges with fancy The other sides are placed on the first that will make a good -looking piece of ball ends for this, 1%" for small doors sides and secured by brads and glue. furniture for any room. and 2" for the large ones. The cover If the grain of these pieces are cut The circuit used can be any 3 -tube is made by aid of the mitre box. Pro- according to the other arrow, figure or more, variety. I would recommend cure some gumwood moulding from a 4, it will bend around elbow; slightly one of the latest 3- circuit type, using mill making builders finish, of a de- wetting it at this point will help. Glue a two rotor tuning coil, as the controls sign suitable for the cover, and mitre a block on the end with a 4" hole and are few, and can be used with the the corners carefully. There will be piece of Yt" brass tubing about 2" long comparatively short panel necessary, a hard job to secure the pieces together will complete the horn. and the efficiency of this type is high.

www.americanradiohistory.com MAY, 1925 WIRELESS AGE - THE RADIO MAGAZINE

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www.americanradiohistory.com (1 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 which How -do- you -do? started modestly with six verses, cure for misplaced affections and it now totals more than six thousand. still By ANN LORD leaves her pride untouched. Recently Fred Gartung, a mine oper- "I manage to keep a step ahead of (Continued from page 35) ator out in Montana asked a station the radio man, and my plays have the here to locate his wife, Florence, whom tendency to make husbands song about her. But his not and wives lines were he alleges he "still loves and wants more contented with each other very refined, and so they were recast when back." An SOS was sent to Lew Cody, they see what could happen. The King by Lady John Scott. She had no idea then appearing at a local playhouse. As David story that her is the most plausible. I am version of the old song would you know he is an artist at the art of prouder of it be the one than of any of the others, known through the ages in- influencing errant wives to return to but if any of you listening stead of the original. forgiving in on this husbands. Mr. Cody pre- program know of any better alibis for pared And out of Jack Lowell's desire to the following for the air, and he a bachelor, please send them in to sta- find his father and mother, the present asks to be pardoned if he leans over tion WQJ, Chicago." "How Do You Do" song was born. backwards in doing his duty in the Immediately the armchair bachelors matter. Letters and telegrams began to pour took possession of the air -that is, they into the station. They came from every "For years," said Mr. Cody, "I have began to telegraph in and make de- corner of the globe. This necessitated been playing bachelor types on the mands of the "How Do You Do" mars. the installation of a permanent "How - screen and stage -I'm the gay dog Among the first messages was one Do- You -Do" man at WQJ and Jerry whose life work is to 'understand' the from Dowagiac, Michigan. A bachelor Sullivan satisfied himself that Harry 'misunderstood' woman. Somehow, admitted the girls liked him, and would Geise was the original and employed directors have come to depend upon me the "How Do You Do" man tell him him. for ideas as to how a bachelor gets into why. So WQJ broke in on the air at At the very beginning, a brother and a flirtation, usually with a married midnight with : sister separated when mere babies woman whose home life is dull and stu- "Hello, A. R. Greer, how do you do? through misfortune were happily re- pid, but more particularly he is inter- Hello, Allie Greer, how are you? united through radio after fifteen years. ested in how to get out of such affairs. You're a rich old bach so they say The other day I was inquiring about The outcome is that the wife goes back That's why Dowagiac girls flock this and other cases and I met two to the husband ; it's a subtle `How Do your way, cousins, the only living relatives of You Do' song of which I shall tell you. How do you do Allie Greer, how do their respective family tree, who had I use the following alibis, ruses, dodges, you do!" been introduced by radio. Fathers, subterfuges, evasions, and 'get -a -ways' The latest report from Mr. Greer is mothers, brothers, sisters, sweethearts, from matrimony and it does a lot of to the effect that he is learning all of friends began to make use of the radio good in reuniting husbands and wives Lew Cody's alibis by heart, in the event as the best means of finding their lost -so try it on the air: of needing them. one. The letter Many of the facts surrounding "No. 1 -Tell her that she should not which follows was not these queries are confidential -so much give up such a fine man as her husband given any attention. I culled it from so that even the "How -Do- You -Do" for a mere idler like yourself. a host of others, because it will prove Tell her with man will only give you the desired in- she is too good for you, and that the what courage a farmer faces a formation if you satisfy him with memory of her dear, kind husband sit- loss. The writer of this letter lives proof near Dry Glaze, that you are either sought or are ting at home alone hurts you and would Mo., and reads : seeking some lost one. keep coming between you. "Dear W. Q. J. : -Will you please help me find my Bessie Mrs. Ora Hughes, 229 North Collett "No. 2 -Read her a stern moral ? She is seven- les- teen years old, large for St., Lima, Ohio, wrote in last week that son out of the Bible. That love story her age and never gave mother and me she would like to find her father and of King David and Beth -sheba is very any trouble from the day she was born, mother, neither of whom she can re- attractive and effective. Show her how until the member. day she disappeared. She seemed to be you are like King David, intensely in contented "My own mother," she writes, "was love with another man's oh the farm, and neither of wife, but that us suspected that it born Jeanette Davis, in 1873 death and disaster would was different with at Piqua, follow her her until she was gone Ohio. My father's name is William divorce and remarriage to you. and we couldn't I make find any trace of her. Schweck. He was born in Columbus, good use of this in `So This Is Ohio. Marriage.' "I've advertised in the country Shortly after I was born my papers and mother divorced him put up hand bills at the and remarried a "No. 3-Tell her your doctor has grocery store, but Mr. Spriggs, who has since been re- nothing has come of just told you that you haven't long to it. It is now going on ported dead. This left mother and my- live, two months since that your heart is weakening under she left home. She used self with step -Grandmother Spriggs. the strain to run with of gayety and though you Hiram Benton's Gertie, but Mother qualified for the stage and her love her dearly, you Gertie can't think of ty- doesn't act as if she knew anything of work took her abroad, but I was left ing her for life to your cadaver. This Bessie's behind with Grandmother whereabouts, and I don't be- Spriggs who puts a damper on her romanticism. lieve she does. placed me in the Franklin County "No. 4-Pretend you can't "Please Home, at Columbus. quit help me find her if you can. From there I drinking, even for love of her, confess Mother says was adopted by I'd better add that Bessie a family by the name your dipsomaniac tendencies and ask is our old cow." of Ross who took me to Toledo, Ohio her to help you overcome them. Respectfully, to live. This will frighten her back to any kind of ( Signed) F. F. CARREY. "Through this brief history of my- husband. Many children self, I am write, wire and tele- trying to locate my father, "No. 5 -Have a sudden bankruptcy. phone about William lost cats, dogs, birds and Schweck, or my mother Go broke and tell her that you have pets of various Jeanette Spriggs." kinds, but these, too, been neglecting business, thinking of are ignored by the busy broadcasting WQJ is still radioing the request on her, dreaming of her, and that the stations, while the much more import- the air along with many others adding crash has come. You will have to live ant task of reuniting families verse and a for Jeanette Spriggs and in a kitchenette apartment if she mar- friends go on nightly from various William Schweck, so that the song ries you. This I find is an excellent stations.

www.americanradiohistory.com MAGAZINE 65 MAY, 1925 WIRELESS AGE - THE RADIO eYnlYaMAMi.`G7..G7.(iMYOwv.CAOL?9ca]tr..C1`XMILVOI.tihOM.`V7fiíuJhSMO.e,lwVrtr`.u.fl32.11e1w0.wu:fp. The DAVEN SUPER AMPLIFIER Obtain from your Dealer the "RE- SISTOR MANUAL," our complete A 3 -stage RESISTANCE COUPLED UNIT handbook on Resistance Coupled Ampli- which gives you that perfect tone -quality you are fication. Price 25c. Postpaid 35c. seeking. It is already wired and may be made a part of your set with a minimum of assembly labor. The merits of this modern forni of amplification is so appreciated that progressive set builders are adopting the SUPER AMPLIFIER for perfect results. It costs less to install and adds greatly to the life of your "B" Batteries.

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A Beautiful C1d10 Reproduction The Spirit of Embossed in green, size II x 14 ", suitable for framing and containing V. T. Miller's verses -"The Spirit of Radio." FREE It will add a unique atmosphere to the room- hanging behind your Radio Re- ceiver. At a considerable cost to the publishers these reproductions were made for distribution to a selected list. The few remaining will be given to new subscribers.

A criterion of WIRELESS AGE, RADIO as conceived 3z6 Broadway, N. Y. C. by the sculptor, Leo Gentlemen: Bayman, and as ex- Please send nie without cost Leo Bayman's "Spirit emplified in the col- of Radio." Also enter my subscription to WIRELESS umns of WIRELESS AGE for one year. Enclosed is $2.50. AGE. Nance Street City State

"Quality Goods for Quality Readers"

www.americanradiohistory.com 66 WIRELESS AGE THE RADIO - MAGAZINE MAY, 1925 Loud Speaker Horns istic of an exponential horn (Continued is that the use of this law continually in from page 16) sound radiation can be increased expon- tones from the latter horn over ential horn- design. This also has an- will exceed the low frequency region by proper other considerably that from the former one. design. desirable effect, because the As The controlling factor is the slower the horn the frequency is increased above rate at which opens up the more the cut -off the area (size of the nearly the pressure frequency of an exponen- horn) increases as and air velocity tial horn, the we go from the are in phase, as we call it. This sound output increases small to the large end. This rate fur- quite rapidly for a while, of ther augments the energy radiation after which area- increase can be made smaller from it increases but slowly, gradually simply an exponential horn. ap- by making the ratio of the Of proaching a straight horizontal line. small end course, we must not make the This to the large one larger. That small end is a very desirable characteristic is, if one horn starts too large for several rea- for it helps with an initial sons. One of these to give the flat, ideal loud area sq. in. and a second give us the speaker curve. This / one starts fourth distinguishing characteristics is the second dis- with an initial area of % sq. in. and of tinguishing characteristic of the ex- both exponential horns. This is, that the have the same final area, then the sound radiation ponential horn -the first being the low former horn from this type of horn frequency will have a lower cut- becomes larger cut -off point. off frequency than the latter. the smaller we make The third distinguishing This is the initial opening. This argues character- very desirable, of course; and we for make a small initial opening, but the third characteristic mentioned above argues for a large initial opening in order to reduce the cut -off frequency to a lower value. There must, therefore, be a mutual adjustment to obtain the best results. Another reason why the opening cannot be too small is that the flow of air out through a small orifice is too much retarded by the smallness of such an opening. Everyone is familiar with the difficulty of attempting to make a liquid flow through small necks, orifices, etc., and we need not illustrate our idea further. While on the subject of the initial opening, let us indicate in another manner why a horn has to be small at the end attached to the unit. The reason why the large end needs to be large is to prevent too sharp resonance and permit more radiation, as has been explained above. There must be large pressure changes and high air veloci- ties at the small end of the horn in order to have a sufficient amount of sound energy enter the horn. The pressure is made large (that is, the sound pressure), by having the unit diaphragm vibrate in a small cavity with a small exit into the horn. The For Natural horn opening must be made small to Reproduction match the opening Even a genius cannot draw flats to the unit cham- less music from ber in an untuned violin. Just so -even the best radio which the pressure variations receiver cannot reproduce clear, natural music corresponding to sound are generated. U Friction Clutch if it is not sharply the heart of Accu- tuned.' It is exactly analogous to the electrical ratune Controls. Au- Every detail of Accuratune Micrometer (3) Now soar mesh case tomatically locks gear Con- assures of matching impedances for max- trols is designed for extremely p e r f e c t train for roan ail - close, precise alignment of the new imum Of tuning . transfer electrical energy. iuetment and throws with perfect ease! Sensitive sets brass gear train. train into operation Then, the horn must are simpler to handle -DX stations can be open up gradu- for fine adjustment. tuned -in easier European Branch ally is, -locals much clearer with more Office: -that abrupt changes in the (2) Long center bush- volume. area must ing Gaston E. - be carefully avoided to pre- gives maximum Accuratune Mar ,haft- bearing surface Micrometer Controls may be ap- baix vent the sound being reflected back and prevents all wob- plied instantly to any condenser shaft 27 Anning St., ble. and re- London. instead of transmitted out. Then, place ordinary dials without set alterations E. C. 2. too, the horn must be carried to a fairly At your dealers, otherwise send price ($3.50) and you will be supplied large opening to reduce the pressure postpaid. gradually Write for descriptive folder. and thus avoid an abrupt change to the surrounding air Mydar Radio Company, 9 -A Campbell St., Newark, outside N. J. the horn. All this amounts to, is to adjust the acoustic impedance, as we call it, of the horn to fit the loud speaker unit at one end and the open REG air at the other end. /STEREO U.S PAT. OPF. That is, we MICROMETER CONTROLS match the impedances in acoustics for maximum sound enegry- transfer just as we do in electricity for maximum "Quality Goods for Quality Readers"

www.americanradiohistory.com AGE THE RADIO MAGAZINE 67 MAY, 1925 WIRELESS - energy- transfer. The principle is the same in both cases, but the mathemat- THAN "B" BATTERIES ical theory has been only partially BETTER worked out in the acoustical case since RHAMSTINE* it is much more difficult to handle, both theoretically and experimentally, than the electrical case. Now, it is impossible to have very RE l TIFIER large loud speakers in the home, so the size of the horn is limited by that Forever rids you of "B" battery troubles-from home conditions, consequently, the the annoyance of weak signals due to run down batteries-from the snap and crackle sometimes final opening will not be large enough that results from chemical thought to be "static" and to avoid end reflection. action in the cells-and gives you better smoother reception. Resonance will, therefore, enter and Two controls, one for the Detector and one for makes it possible for you to feed just the right more or less sharp peaks will show the Amplifiers Cycles. voltage to get best results. Operates on 110 volts AC 60 up. So the solid curve shown in fig- The Rhamstine "B" RECTIFIER plugs into your electric dependable, steady, economical power in practice. light circuit and delivers a to ure 8 is never obtained that makes broadcast receiving a genuine pleasure. It is easy contrary, the dotted curve in operate, works equally well with all types of sets. cannot possibly On the has no hum, no acid, and will last indefinitely. figure is typical of what is ob- burn out tubes, the Only NO MONEY tained. This curve is further modi- SEND Mail the coupon today, pay on delivery and try the Rhamstine fied, of course, by the loud speaker "B" RECTIFIER on your own set and under any and all con- and the result is ditions. If it doesn't do everything claimed for it-if you are unit characteristics, $25 not entirely satisfied in every respect, return it and Rhamstine a curve much like those obtained for will refund your money.- This is the same hard and fast guarantee that thousands of Rhamstine Needlephones have been sold a conical horn and no space need be under. It is your protection and assurance of satisfaction. Mail the coupon right now! given in this place for a loud speaker "Plugs into your electric with this type of a horn. light circuit." J. THOS. RHAMSTINE * horns of other The discussion for J. THOMAS RHAMSTINE 5) carried on in our next Mich. shapes will be Mail This , 504 E. Woodbridgeodbr id St., Detroit, to by express installment and we shall be able NOTE Send me your "B" RECTIFIER DEALERS p C.O.D. subject to inspection, at $25. It is dts other phases of our subject, am not entirely satis- introduce This is the lowest priced, tinctly understood that if I well fled, I will return it within 5 days and receive a which is, I believe, one which completely assembled source Today i returd of the full purchase price. deserves a rather complete treatment. of "B" current on the market. Write for dealer proposition Name before some one else gets it. Trans -Atlantic Reception Address EDITOR, WIRELESS AGE: Am writing to submit a suggestion for your approval. I believe that the international test week of some time ago created a great deal of interest in DX reception ; and I believe that more you know about the tech- would 00"t, BR#ah. 'idA,d1A' TH E there are many fans like myself who nical requirements of radio, the to get like further and regular opportunities more you appreciate the technical re- a try for Europe. ammarlund finements of the Hammarlund New to have a PRECIS/ON Why couldn't it be arranged Model "C" Condenser. each night of the week or CONDENSER silent night 1925 is an instrument of laboratory pre- each week by Copyright March 17th, It at least four or five nights sold at a popular price by the eve be a cision, meters. For instance, let Monday better radio dealers. silent night for all stations broadcasting Hammarlund Condensers in Let Tuesday Use only between 200 and 275 meters. you build. Look for Ham - operating on 275 the receiver night be silent for stations marlund Condensers in the receiver you let Wednesday night be to 350 meters, and buy. All capacities; plain and Vernier. silent for those stations from 350 meters to 425. Thursday would cover the balance up Write for Interesting Folder. to 600 and still have Friday, Saturday and CO. to all broadcasting stations. HAMMARLUND MANUFACTURING Sunday open York By that plan we would open the channel 424 -438 West 33rd Street New to England's 2L0 every Tuesday and would be able to tune for some other European station on each silent night. Radio has developed now to the point where we should be able to get European reception with reasonable consistency if it were not for domestic interference. Per- sonally, I would get more kick out of one - half hour's reception of Europe than an hour of the finest local music in the world, and I D sAxs..SU.USS-Pssi ul' j believe there are many more like me. I feel that if some big magazine like WIRELESS AGE were to propose some such plan it could be brought about. Hoping that you will be able to start US Icy Price something that will give us a chance at 4t1 $1.50 foreign reception and thanking you in ad- t' vance, I remain, PRODUCTS THE IDEAL RADIO Sincerely, RHEOSTAT EARL DELOSO HAMER. Music Muter Corporation Misd. by Marshall Electric Co., loth & Cherry SU.. Philadelphia Locust Boul.. St. Louis. Mo. Genoa City, Wisc. 3239 "Quality Goods for Quality Readers"

www.americanradiohistory.com fn WIRELESS AGE THE RADIO MAGAZINE - MAY, 1925 LOOK] Low Loss Coils HERE FOR (Continued from THE RED page 24) STRIPE wound with wire having zero resistance, the coil being isolated in free space without any material support. \Ve can wind such a coil, with a few modifications, 1. \Ve can wind the coil on an air core and make the supports as small as mechanically possible. 2. We can keep all imperfect dielectrics as far from the strongest part of the field of the coil as feasible. 3. We can minimize the ohmic resistance AMPERITE -the Self- Adjusting of the winding by avoiding takes rheostat, the use care of tube current b than any of too small wire for the wind- expert operator could regulate it. No hand more ing. rheostats or filament meters necessary. Brings themost out of each individual Before going tube ahead with the con- automatically. Simplifies wiring, dou- struction of bles tube life, lowers net cost. Approved the radio- frequency trans- all by formers leading laboratories. Lined in every there are a few more perti- popular construction circuit. nent points that we should bear in RADIALL COMPANY mind. Dept. W. A.-9, 50 Franklin St., New York City 1. Dead end turns in a coil will in- Write for crease its radio-frequency resistance. FREE 2. Terminals of radio - frequency Hook -ups coils which are embedded in insulating material introduce resistance due to PEG. our old friend "dielectric absorption." "meanstJ S. L-PAT. OFF E 3. Insulating material between the right amperes" turns of a coil increase the radio -frequency resistance, again due to "dielectric absorption." 4. Actual leakage of radio -fre- FAD- quency currents between successive ING set turns in the winding of the coil manufac- will turers use also increase the radio - frequency re- Used by the United States Navy Corps and Signal sistance. New York for over nine years, Dilerto is the rongest, safest panel Coil mica radio that can be made. Now, considering the last four facts Look for the identifying "Red Stripe" mentioned, fixed condensers because that sets apart Dilecto from its imitators. let us see what we can do they THE improve selectivity, DX CONTINENTAL FIBRE CO. toward eliminating the causes for ra- recep- FACTORY: NEWARK, DELAWARE tion, musical le, dio- frequency resistance quality and re- vice on Dilecto, also Conter, Conite, as put forth und Volcanised Fibre, front: in those four paragraphs. duce noise and distortion. Ltv YORK SAN They FRANCISCO As far as 1 will do the same in your -U Madison Ate. 75 Fremont St. No. is concerned, we t'HICAGO SEATTLE can eliminate that set. All capacities 35c to 75c. 0th So. entirely by not hav- }t LOS Farmers ing any useless turns NEW Br.k Bldg. 307 SLESSo. Hill St in our coils. YORK COIL CO. Officers and Agents Throughout the World We can take care of No. 2 very 338 Pearl Street, New York City nicely. Instead of bringing the ends Pacific Coast Representatives of the primary MARSHANK SALES COMPANY and secondary wind- 926 Insurance Bldg. Los Angeles, ings of our radio- frequency transfor- Calif. L mers to terminals which are embedded ] in the bakelite form on which the coils are wound, we (distinguished by its red stripe) will, in the first place, bring the ends of the windings Get on the directly out to the bus -bars to which they are to be connected and in the SUBSCRIPTION second place, we won't have any Bake- LIST lite form. and be sure of get- No. 3 brings up the point that we FROST-RADIO must exercise our better judgment in ting your copy of MUSETTE the choice of the insulation we have Phonograph Attachment on the wire we use in winding the your coils. It is just WIRELESS AGE CONVERTSpresent phono- as essential that we graph into loud check the quality speaker. Pure, clear of the dielectric intone, and faithful troduced in the field reproduction of voice of the coil by the and music insured. insulation on Order from your the winding as it is that dealer. we be careful of the dielectric we EASTERN would put in the field l.i,t price, corn- of a condenser Pickle Bottle Coils ;,re , e,ung a pieta with cord as $550W R,,0Mkei4 if we were constructing 'Minn. They are unexcelled and perfect In shown one. performance. Hook -up and full sine panel lay- In the latter case, out FREE with euh set. For the ROBERTS if we wanted the Circuit 168.501; Superdyne. 1681; cuit Three Cir- HERBERT H. FROST, Inc. best results, we would use air for a (661; and for tuned R. F. (121 per coll. 314 -324 WEST SUPERIOR STREET, CHICAGO dielectric, At your dealers or direct New York City Cl.veland Kannaa City L. Anale. but in the case of the di- EASTERN COIL CORP. electric between the turns of wire on Dept. W. A. 22 Warren St., New York City "Quality Goods for Quality Readers"

www.americanradiohistory.com \1Av, 1925 WIRELESS AGE - THE RADIO MAGAZINE fí9 our coils it is not feasible to have air Fan as we want the wire to be covered with Every Radio some material substance. It is not advisable to use enameled wire as enamel should have is a poor dielectric and another thing, Book too, owing to the thinness of the this enamel, a coil wound of this kind of wire would have a high distributed JUST OUT PAGES capacity. 514 because it Compiled by Cotton insulation is good HARRY F. DART, is a good dielectric (as long as it is E.E. kept dry). Single cotton covered Formerly with the feasible due to the lack of w Electric Co., wire is not and U S. Army In- insulation. Double cotton covered tructor of Radio. wire is good insulation and also pro- Technically edited by vides plenty of spacing between turns. F. H. Deans is good, also, LOW RI-:L LOSS Double silk covered wire because it offers good insulation, NO MORE need you turn from book to book, turns and hoping to find what you want. It is all here. R. F. AMPLIFIER plenty of spacing between in 614 pages crammed full of every possible radio dielectric. detail. Written in plain language, by engineers This low loss tuned R.F. amplifier can be is a good for laymen. More than 100,000 sold. placed before any receiver employing a three From No. 4 we see that it is ad- IT EXPLAINS: Electrical terms circuit tuner. and circuits, antennas, batteries, to always keep our coils electron More Selectivity -Consistent DX Reception vantageous genera'.ors and motors, the turns (vacuum) tubes. many receiving dry because leakage between frequency Completely wired on a 7 "x6" panel. Very hook -ups, radio and audio easily connected to your present set. of the coil occurs when the insulation amplification, broadcast and com- over- mercial transmitters and receivers. The unit may be purchased alone and con- becomes moist. One way to super- regeneration, codes, etc. sists of the low loss variable condenser, last effect is to use enameled Semi SI today and get this 514 -page 1. C. S. Radio special low loss R.F. coil, socket and mount- come this today. ing frame. wire, but we have just said that en- t Handbook--the biggest voloe in radio REL Low Loss R.F. Amplifier. $13.50 it is a Schools amel is undesirable because 1 International Correspondents REL Low Loss R.F. Unit, only 9.00 the Bet 6039. Scranton. Penna. poor dielectric and hence increases I enclose One Dollar. Please semi Write for Circular. dielectric Pohl-the 511 -pace I. C. Radio Ile -post- resistance of the coil due to It Is understood that If I am not entirely satis- around fied I may return this look within live days and RADIO ENGINEERING LABORATORIES absorption. The way to get you will refund my money. cotton covered "Builders of the Lopez Low Loss Tuner." this is to use double Name copper wire. The enamel If your dealer cannot supply you write to us direct enameled Address l making Cheek here and enelone $1.50 if son wish the will prevent the moisture from de Lue .d,i e,,. !mold in Leolher.d. 29 Thames Street - New York, N. Y. contact with the copper conductor and L_ the double cotton covering will pro- HONEYCOMB COILS vide sufficient spacing between turns The Universal all -wave so the dielectric effect of the enamel inductance. Back and front panel mountings. will not be bothersome. Send 25c for Super For the three coils which we are to Het.. R.F. and Honey- Solid comb Coil Circuits and wind for the "Direct coupled regen- Complete Catalog. Rubber erative radio -frequency receiver" we Case Chas. A. Branston. Inc. cot- Dept. 14, 815 Main St. will need Y2 lb. of No. 24 double Buffalo. N. Y. ton covered enameled copper wire. If this seems a little difficult to procure, buy / lb. of No. 24 double cotton BAKELITE DIALS covered copper wire. The first thing are accurate in dimension and will now is to make a Booklet 26. that we must do not warp. Write for The diagram in figure BAKELITE CORPORATION winding form. 1 gives you a good idea of how the B 247 Park Ave., New York, N. Y. winding form is constructed. 00 Chicago Office: 636 W. 22nd St. First, procure a wooden disc 3 inches in diameter and 4 of an inch the rim of this disc in- You Save 50% thick. Divide World 6 -Volt Storage Batteries parts and you will have are /amous for their guaranteed Approved and *mall ßùg of $ßíg 3Intereot to 15 equal quality and service. Hacked by Lined as 15 equidistant points around years of Sucres -ful Manufacture Standard by 80 cents a line. Payable in advance. located and Thousands of Satisfied Users. Leading the circumference. Insert a / -inch You save 50cá and get a Authorities Minimum space 7 lines. one of these 2 -Year Guarantee Bond including ladin dowel into the rim at each In Writing News Labor. as spokes in a World Bat ter,' owners "toll stories, Popular points, just the same their friends." That's our best Science Insti- AGENTS -WRITE FOR FREE SAMPLES. protrudes proof of performance. Send your tute of Stand- Sell Madison "Better- Made" Shirts for large wheel, so that each dowel order in today. ards, Popular wearer. No capital or RADIO PATTERIES Radio Labor - Manufacturer direct to 1 out from the rim. Don't make experience required. Many earn $100 weekly inch e.Vol,.100- Amperes . $12.20 tories. Radio it will be nec- 6- Volt.120-Ao p rem . . . . 14.25 Broadcast Lab- and bonus. MADISON MFGRS., 501 Broad- this a driving fit because 6 -Volt, 140-Amperes a6.Ú, oratories and way, New York. AUTO BATTERIES Lefax, Inc. essary to remove the dowels, after the 6 -Volt, II Plate . . . $12 20 6 -Volt. 19.i'Int- . . . . . 14 20 MAKE $100 WEEKLY In Spare Time. Sell winding is completed, before you will 12 -von. 7. mate . . . . . 17.00 Solid Rubber what the public wants -long distance radio receiv- SEND NO MONEY Container ing sets. Two sales weekly pays $100 profit. No be able to remove the completed wind- Just state battery wanted and big investment no canvassing. Sharpe of Colo- we will ship day order is received. Now Standard form. by Express C. O. D., subject to equipment ono]] rado made $955 in one month. Representatives ing from the World Storage is sweeping the coun- your examination on arrival. wanted at once. This plan After the winding form is com- Extra Offers 6^i discount for Batteries. No try -write today before your county is gone. cash in full with order. Buy now more leakage or Blvd., Chicago. winding the first more l akape rr OZARKA, INC., 854 Washington pleted, you can start and get n guaranteed battery at Averottingof is one in the input 60'" saving to you. MOTORS-New G. E. % -HP., $12.50; y4 -11P., coil. This coil the WORLD BATTERY COMPANY GENERATORS -Radio $28.50; 1 -HP., $45. circuit to the first radio -frequency 1219 S. Wabash Ave., Dept. ev Chicago,ßl. Transmission 500V $28.50 Battery Chargers- Farm Lighting Generators all sizes. Lathes - amplifier tube and is a single 40-turn Drill Presses. New Catalog. MOTOR SPECIALTIES CO., Crafton, Penna. coil. "Quality Goods for Quality [leaders"

www.americanradiohistory.com WIRELESS AGE THE RADIO - MAGAZINE MAY, 1925 To facilitate WHOLESALE the description of the DISTRIBUTORS method of winding these coils, FOR a view is shown of the rim of the winding form, with dowels inserted, rolled out Radiolas and Radiotrons into one plane as shown in figure 2. In this view, the entire rim of the Radio Corporation of America winding form is shown as it would look Sales Dept.. Suite 2066: 233 Broadway, New York if it could be unrolled and laid District Sales Offices: out in one plane. The 15 dowels are IO South LaSalle St., Chicago, III. 433 California St., San Francisco, Cal. numbered from 1 to 15. Starting the winding at dowel No. 1, pass the ILLINOIS NEW YORK wire to the left of No. 1 and No. 2, then cross over and pass No. 3 and No. 4 on the right, now TUSCOLA RADIO SUPPLY TIMES APPLIANCE CO., Inc. cross back again and pass No. 5 and STATION Approved Radio Merchandise No. 6 on the left, etc., always passing Dependable Radio Apparatus Wholesale Only the wire around the left hand side of two successive dowels and then around I USCOLA ILLINOIS 145 WEST 45th ST. NEW YORK the right hand side of the two succeeding ones, criss- crossing back and forth in MAINE PENNSYLVANIA this manner until you have completed 40 turns. When the coil is ATLANTIC RADIO CO., Inc. completed, take out the dowels, care- LUDi i ROMMEL& CO fully, and then tie the winding securely vta .[r.r. aveMUe PA Z . PrrrsaSMM. at strategic points to keep it from un- Complete Service WHOLESALES 100% THROUGH ravelling. DEALERS ONLY The next coil is wound in a similar wRITE FOR HOMMEL'S 2.1 TEMPLE ST. ENCYCLOPEDIA manner. The only difference between PORTLAND, ME. OF RADIO APPARATUS 256 -E this coil and the first is that this sec- MASSACHUSETTS ond one is tapped at the fifth turn. The last transformer is different F. D. PITTS CO., Inc. from the first two in that it is com- PENN ELECTRICAL posed of two windings. Proceed the Exclusively Exclusively ENGINEERING CO. same as you did in the case of the Radio W'holenale first Westinghouse Agent Jobbers coil and when you have completed 40 turns you will have completed the 219 Columbus Ave. Roston, Mass. SCRANTON, PA. first winding. Start the second winding right where you end the first and proceed until you have wound on 5 ATLANTIC RADIO CO., Inc. turns. Then end this winding. THE Thus PHILADELPHIA ELECTRIC you have completed a transformer composed of a 40 -turn secondary Complete Service COMPANY SUPPLY DEPT. winding and a 5 -turn 130 -32 primary winding, the So. Eleventh St. two windings being separate. 727 Boylston St. Boston, Mass. Philadelphia This completes the story on the winding of the coils for the "Direct NEW YORK WEST VIRGINIA coupled regenerative radio- frequency receiver" and the story of the receiver CONTINENTAL RADIO ( :I IARLES "I ON ELECTRICAL SUPPLY CO. was in last month's issue of this mag- AND ELECTRIC CORP'N azine. New York's Leading Radio House I will be glad to hear from all you Complete Service fellows regarding 15 WARREN your success with STREET this NEW YORK circuit, also, any suggestions for CHARLESTON, WEST VIRGINIA improvement which you care to submit will be most graciously accepted. The Voice from the Cabinet (Continued from page 39) you hear him? He's speaking to us now! The only scientifically Go to the telephone! Quickly! Call them selected detector miner. up now, before he leaves! Oh, you'll be EMPIRE als on the market today too late !" are the genuine N.A.A. .e..ae, Oiled Tubing He did not notice that her mother and her father were in the room; had come EMPIREReal Radio Sets of today -the kind that last at the girl's first cry; he noticed nothing, ..."14 long and work best -are knew nothing insulated with genuine except that this girl whom Empire Oiled "Cubing. Full, clear rectification insured by he loved was trying to invoke a rival who newly developed visible laboratory mcter.ie.tina. Perfect for reflex. would slay the little happiness he had for Price 60c at your dealer or direct MICA INSULATOR CO. Recommended by Radio New,, so short a time enjoyed. Popular Radio. Acme Apparatus 68 Church St. 542 So. Dearborn St. Company. etc "You just imagine it, dear!" he cried, New York Chicago and without thought he gathered her into tqlittornain- Works: Schenectady, N. Y. 2030 -F his arms. She tore herself away from him. 1740 FA., Twelfth &"e, Cleveland. O6b "You don't want to help me !" she cried r,.....,.. Turf CwW, accusingly. "You want me to lose him forever !" "Quality Goods for Quality Readers"

www.americanradiohistory.com WIRELESS AGE - THE RADIO MAGAZINE 71

Before the fire of her accusing eyes, he stood for a moment speechless, then, without a word he turned on his heel and BURGESS plunged blindly out to the hall where he clutched the telephone as though he would RADIO BATTERIES have strangled it and grimly demanded a wire to Detroit. At his departure she turned with wide, harried eyes to her mother and flung herself into her arms. at Every Price "Rodney! He's there! He's talking to Cabinet or table space many us! On the radio!" she cried; and she temes determine the size and type buried her face in her mother's breast, of radio batteries selected by weeping. the user Her father turned to the wooden cabinet Burgess manufactures a battery for concern. Only a radio and tube. Your in perplexity and deep every circuit noise choice of any one of many types in. slight, almost imperceptible grating volves no sacrifice of economy or ser. it. vice hours The value and quality of issued from Finer Burgess Radio Batteries are constant - With the same grim determination with your satisfaction assured which he had called Detroit that night and Selectivity Ask Any Radio Engineer conveyed to a gratified official of the Equip your recciv- Write to 231 Burgess Engineer - Michigan State Bulletin (which housed ingset with Apex Vernier mg Building, Madison,Wisconsin WHKY) his suspicion that the lost Dials. They will greatly for the Burgess Radio Compass. station of It is amusing, unusual and useful. was Rodney Trimble of Sarnac, Early increase the efficiency man pos- matter to its conclusion. He could any set.Makc tuning saw the itive bring in distant not forget the passionate accusation which - Meredith stations. Your dealer has had flamed in the eyes of Kate send $2.00 and them. If not, as she had sent him to the telephone, for Royal Brass Finish - a which Burgess 'C' Bat- the memory aroused in him spirit $2.50 for Satin Silver teries improve had not before existed in his relation to Finish, or $3.50 for De reception eco- had been the nomically. the girl. Hitherto devotion Luxe Gold Plated (24k). keynote of his wooing; now it was as 5 though he fought in active combat with Apex Super merciless foe. That foe This highly efficient an unscrupulous, frequency intangible substance of a romantic tuned radio was the receiverismost advanced infatuation which existed in the heart and himself in design and construc- mind of a girl, and Early found tion. An instrument that battling against it grimly, desperately. meets every critical ex- He obtained from the distant sponsors pectation of the radio of the unknown man's destiny a detailed enthusiast. description of the lost one. lie also de- Housed in a highly One of several a complete summary of the man's cabinet, sizes of Vertical rived `finished walnut 'B' Batteries. habits, mannerisms, peculiarities and traits. complete with Jones All these he found were satisfactory, but Multi.plug Battery Cable. All settings highly gold plated.Sell s he did not give the results of his inquiries for $95 complete excepting to Kate Meredith or her parents. accessories. good Dealers He devoted the entire morning to this At All untiring quest for information and at Apex Elec. Mfg. Co. luncheon with the Merediths he told them 1410 W. 59th Street only that they could expect the man who Dept. 519 Chicago had lost his memory to appear at their house that evening. Kate, who tensely endeavored to appear no more than quietly these Standard Burgess interested in the development of Radio No. 6 'A' exerted all her self Battery "Over strange circumstances, Twice the Life." control to question him. "Did you get his description ?" she asked in a tense staccato. her He gazed very straightforwardly into eyes. "As far as I could," he said. 'tI think he is the man." And she dropped on her knife and fork with a little clatter her plate, turning deathly pale. Battery He persuaded them to await the hostage Chargers that Valley of fortune in their home. He argued The Charger With they must at all cost avoid a scene at the Ten Points of Superiority all station, and it was not convenient that wad. by Valley Electric Co.. Sarnac should know of Trimblé s return. St. Louie, Mo. Sold by Radio Dealers Everywhere. Mrs. Meredith assured him that she would manage that, which left nothing more to do than for four people to contain their various emotions until they were put to denoue- Burgess block shape 'B' Batteries are the ultimate test by the singular made in numerous types and voltages. ment of the strange adventure which had HERCULES enmeshed them. AERIAL MAST BURGESS BATTERY COMPANY was dark evening when Early brought 20 Ft. Mast $10 It Writs fr Engineers DRY BATTERIES Manufacturers home from 40 Ft. Mast 25 his two guests to the Meredith Mast 145 - Ignition - Telephone 60 Ft. Minims Flashlight - Radio being opened as Harris Trost Bldg.. Chicago the station, and the door All steel construction. complete tad General Sale. Office. masthead Madison. Riscopsis Meredith, the with guy wires esd Laboratones aid Works usual by the capable Mrs. pulley. We pay freight. FREE Wiarpeg immediately In Canada 14i Falb and three of them strode forward II. W. NULL 5 CO., Dept. 04 mood to the living room. There, in the light, 2046 E. 76th St.. Ctswload. 0. Quality Conde for Quality Reader,"

www.americanradiohistory.com 72 WIRELESS AGE THE RADIO MAGAZINE - \IAy, 1925 Kate Meredith stared at them with her moment he never brown eyes sparkling knew for in that moment After their strange amazingly in her the stranger had leapt guest had departed tense, white face. across the room and with her parents for pounced like a bird the library, Kate "Where is he ?" of prey upon the pic- Meredith found herself she cried. And Early ture of Rodney Trimble alone once more very deliberately placed which. smirked at with Early beside his hand upon the them from the table. the cabinet which con- shoulder of the frail young man at his tained the radio. side. "It's him ! It's him !" cried the stranger "I suppose that before I go tonight, I 'This with a peculiar ferocity in his voice; and must ask you is the man," he said steadily. seizing to forgive me," he said. He She drew back the picture frame in his hands as spoke without penitence as though he had indi- though he however, and there cated a wild beast. would have torn the smirking was in his voice the face it framed essence of resignation "No !" she asunder, he sank into a chair and regret. He recalled faltered. "Oh, no !" For at the table the tone with whereas Trimble side. "My God !" he murmured. which she had voiced had been tall and pecu- "My God!" her discovery of the liarly graceful, this man was deception he had wrought. small and They crowded about thin and stooped. \Vbereas Trimble him, plying him "Forgive you for what ?" she asked. had with questions, while been graced with a profusion he stared at them as He glanced at her swiftly. There was of curling though in a trance. in black hair, this man was sparsely crowned her voice the incredible sound of a play- "Who are you fulness, with iron grey. And the tired face of this all ?" he cried. "What an assured coquetry, which he had am I doing here ?" not stranger was drawn and wrinkled. He stood heard since the day when Trimble dis- there and blinked at them. Then suddenly he arose, the picture in appeared. one hand. "I can't remember," he said weakly. "Don't look so astonished," she laughed; and And his eyes wandered about the room. "WHERE CAN I FIND THIS MAN ?" instantly became deeply serious. "What "Jack Early," the voice of Mrs. Mere- he shrieked. "Where is he ?" is it that I have to forgive you, Jack ?" she asked. dith boomed ominously. "Who is this And they knew that he had remembered. man ?" "Surely you haven't forgotten!" he The story he had to tell them was not cried. "I don't know," admitted Early. precisely "Oh, Kate, I- It was the only way a new one; and his emotions at You - "But you had his description ?" snapped regaining forced me to do it, Kate !" his memory of the past were not He Meredith. was standing over her ; completely happy. It seemed now stand- "Yes." that Trimble ing close to her chair. And had met the unfortunate fellow she arose. With for no other "Yes," she said. "I a swift movement the girl con- purpose than to swindle him, know. I forced you fronted him. and that hav- to do it. And there ing become intimate with him, is only one thing I "You knew all he had de- should never have forgiven the time that he wasn't parted not merely with his money you." Rodney Trimble ?" but with "What's that ?" she demanded; and her his wife as well. The unhappy victim voice quivered with had "Oh, Jack, II was afraid! the intensity of her devoted many months to pursuing Trimble I was terribly emotion. afraid that it was really him! I should and brooding over his troubles until he suf- "Yes, I knew. I knew." never have forgiven you if you had brought He frowned fered the inevitable effects of such an en- in the depths of his despair. him back again!" "Oh, don't terprise in complete collapse. When he you see, Kate ?" he de- He held her in his arms and wondered cried. "It was the parted from Sarnac the following morning only way! The only way what it was he ought to say. to convince you !" he had procured not merely his identity, But she stood "Let's . . ..Let's try Chicago,' there with a peculiar glit- but he had procured the he ven- ter in her eyes. friendship and tured. financial backing of LeRoy Meredith; but "But you knew it! You knew it all the those things So they tried Chicago, and heard a suite time !" are hardly of interest to us she said. inasmuch of dulcet love songs while they learned the What Early as the story ended for Jack Early true usefulness would have done in that this very night. of the vast davenport which epitomized LeRoy Merediths in furniture. The H. I. in Broadcasting I wonder that all these people with something to sell have Understand Radio (Continued from page 44) overlooked the possibilities of Sunday. Roxy is the only oasis in radio programs; and when the AN INTRODUCTION TO it is first -class Sabbath desert, and furnishes about the RADIO entertainment, as a only i In 2 Volumes Leather Bound great deal of it is, the program I hear all week." listener doesn't care a tuppenny -bit if they Father has an idea at any rate. FREE TO YOU do tell us who is paying for it. We never bought a Silvertown * * * Cord, but HOW What's In Them? we like to dance to their orchestra; nor have can we gauge the educational value of radio? VOLUME 1 we ever seen a box of Gold Dust, It is almost infinite. One but that perturbed An Introduction to Radio doesn't keep us from tuning in on .Goldy father, who had viewed, somewhat Radio Telephony and with dismay, The Various Instruments Dusty occasionally, and while we enjoy the avidity with which his Used in Radio the small son Transmitting and Receiving Outfits Book- Cadillac orchestra, when we was lapping up all that came out go to of the air Detroit, we stay at the Statler. It is -good, bad and commonplace VOLUME 2 just as was agreeably - Technical Terms Explained easy to turn a dial as a page in a magazine, surprised when the young How hopeful piped, to Set Up Receiving Outfits and the American public at this date is surely Primer of the Vacuum Tube "That was the How to Set Up Radio Transmitters too immured to advertising to lose much aria from Samson and International Morse Code and sleep over it. Delilah," with faultless pronunciation and Conventional Signals * * * accent. He had apparently been listening in on the ORDER BLANK right man. COMES a wail from Father It is WIRELESS PRESS, INC., Date in the middle to be regretted that some of the an- 326 Broadway, New York. west; nouncers of the hinterland have not "Why the time I enclose $ Enter my subscrip- in Sam Hill don't some of these for similar enlightenment. One was sorely tion to "The Wireless Age" for one year stations that and send are forever quarreling about puzzled to hear a broadcaster, who me free a set of "An Introduc- their time, shall be tion to Radio." I also want extra get busy and broadcast a few nameless, intone, sets for some of my chirps friends at 75c each. on Sunday, when I, and a few thous- "You just heard Lay and Ape Rus My -Dy," beasts of burden like me, have time to until he added, in a most Name listen apologetic tone, to them? I've got some three hundred "That's French for 'afternoon.'" Street... .. dollars invested in that outfit and all I ever The Man hear are dinner Who Buys the Batteries writhed concerts and bedtime stories, with glee on City because I am the Davenport, and vowed he so tired every night I can't sit had spent his last up. I go to my penny for tickets to a State own church Sunday morning, vaudeville show. We might and I am not terribly excited add that thi; over listening station is a 'continuous joy; for the LINew Subscriber n I am now an to forty-seven brands of religion un- at night. believably funny things that it tells the AGE subscriber Sunday afternoon I am in a mood to listen to world night after night have no parallel in A -5 -25 anything, but aside from one dinky little our recollection. We cannot, however, concert, there is not recom- a vffration on the air. mend it for its educational value. "Quality Goods for Quality Readers"

www.americanradiohistory.com Alat 1925 WIRELESS AGE - THE RADIO MAGAZINE Giant Radio Lab. (Continued from page 32) ting plant is beyond the hope of any except a large company. Physicist Tests In the receiving laboratory the engineers are interested in developing the various unit parts which comprise radio receivers. They study the char- B -T Condensers acteristics of the tubes for each piece of apparatus making up the receiving G. M. Wilcox, Professor of Physics at Armour Institute of set to make sure that each part is Technology, recently conducted tests on B -T Condensers taken from capable of functioning properly. Ordi- stock. The test included a comparison of readings obtained by in- narily, an experimental receiver labor- terchanging a B -T Condenser with their "laboratory standard" in atory might take up a space equivalent a circuit through which a current was passed at radio frequency. to an ordinary house. The results show that B -T Condensers have less resistance than In a transmitter laboratory the engi- the laboratory standard. Part of Professor Wilcox's letter is re- neers are interested in such features as produced below : the conversion of the ordinary 110 -volt lighting current to 15,000 or 20,000 volts direct current. They must study means of converting this direct current into radio frequency currents. In so doing the efficiency of each part is of vital importance. This is especially true if the transmitter is to have an output above 10 kilowatts. New means must be discovered for holding the radio frequency supply constant. Again, the engineers must study con- tinuously the problem of modulation whereby the audio frequency energy B -T Type L Condenser may be accurately and efficiently super- Clockwise Reading imposed upon the radio frequency en- Chicago, Illinois, ergy. These are but a few of the February 27, 1925. problems the transmitter engineer must "When Bremer -Tully Condensers were in the circuit, the current was from study and when it is appreciated that 1 to 2% greater than that obtained with the Laboratory Standard. It was he may be dealing with transmitters up necessary to introduce about 0.1 ohm in the circuit to bring the current down to the same value as that obtained with the "Standard." The equivalent re- to 100 kilowatts in power some idea is sistance of B -T Condensers is therefore less than that of the standard by gained of the size of the plant that must approximately 0.1 ohm. be placed at his disposal. "Better Tuning" Besides transmitter circuits and their associated equipment the transmitter The 7th edition of "Better Tuning" is ready, -48 pages of hook- engineer must also make a study of the ups, helps, and information valuable to all radio fans, including propagation of electro- magnetic waves, section on B -T "Nameless." At all high -grade dealers or by mail that is he must determine theoretically, on receipt of 10 cents. if possible, and then check these results by experimental tests, the wavelengths Pioneers of "Better Tuning" that are most desirable for any given type of service. He must determine the power required to cover any given dis- BREMER -TULLY MFG. CO. tance under any specified condition. 532 S. CANAL STREET CHICAGO It is for the purpose of carrying on this intensive work in transmission development that the General Electric Company is erecting its great laboratory near Schenectady. Mr. T. P. Alley (Continued from page 45) " DURHAM Gone is the Mammy -lad who was Grid Leaks Q several times a Secretary of State- P. A.'s Used by Eagk,Howard,Thomp- financially. The trend of T. son, Zenith and other.. Fit thought is : all sets. Sold on guarantee. If there is a handy word lower in the Metallized Fixed Leaks OC 18 S sizes; under I/s meg., scale than moron, what is it? The only 75e; over V.1 meg., 50c. single thing the public has noticed in Glass Seale-1 Variable Leak. is an obscure western weather 3 sizes fit all .et -; 75e months each for 1 10,3 and PI 5C . . TNEw N forecaster who bellows promises of 10 mega. . . 7 PARAGO drought. "Drought" is a mild word cft dealers or postpaid RAD IO RECEIVERS what's happening. Sure fire song ES I ntro,lu, lni Ow new ooze red l al Ing l'aredy. for DURHAM COMPANY, Inc. I'Irrult. new ,Imnlltl.d tuning. nti new lew hits meet the scorching blasts of popu- 1936 Market Street Philadelphia, Pa. sriees. Write for Fotder. lar disfavor and their shriveled bodies ADAMSMORCAN CO.. bit Alvin Are., Upper Meel[Idr. N. 1. "Quality Goods for Quality headers"

www.americanradiohistory.com WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925

fairly clutter the pavements of the one- time Lilting Forties. "Saylissen." The brainworker of the firm makes the password snappy. He is having to work faster every day. "Lissen, we been awful dumb. Pullin' this moron stuff an' thinkin' the public's so nix -witted. Give us 'nawful black eye. Even Varieties comes out an' prints a list of snappy song writers who've hadda go back to sellin' neck- ties, jerkin soda 'n' clerkin' in cigar stores." "They's twenty million in the radio audience now, and they can't stand so much sugar, that's what. Sticky songs won't sell any more. I got the low- down today. Good old -timers and high -brow stuff is sellin' faster and faster. We was the morons. I'm learnin'. The public was buyin' what f3,gqesf ?Jim' irr %adio. it knew about, and now it's hearin' the e hash we give 'em so often it sickens No matter what instrument you purchase violin or piano or loud 'em. But the public's findin' out they is some pieces speaker, the first essential is tone quality volume you can't ever get too -next -then design. much of." It will pay you to hear a BEL -CANTO. "An' say, did you know that John THE ONLY PATENTED CABINET SPEAKER McCormack was makin' twice as much The BEL -CANTO has exceptional volume and a mellow, brilliant as many of the jazz kings, all the time? tone quality. Our secret is a flexible reed tone chamber, an exclusive That oughta told us something about BEL- CANTO feature. what the puhlic'll pay for -" "Say, Lissen," T. P. A. himself entered the conversation with his hire- %lie Bel -Canto Caóuree ling's counter -sign. "What's the matter with you anyway ? Have you got .Loud Speaker bit by Culture, or something ?' is a real musical instrument -a truly "beauti- "Me ?" said the fast worker. "No, I finally woke up and got me a radio ful singer." Workmanship is of the best - set. An' I been hearin' our stuff too solid wood throughout -beautifully finished. offen. But Lissen, tomorrow night Price only $1 they's to be a symphony orchestra con- 7.50 cert. Y'oughta hear it. I donno what a fraction of its comparative cost. it's all about ; but say, it's hot stuff." canThc Original o r i h r e Your dealer can get it for you, or we will ship.n Adze table There was only one thing he could Horn with Adlust- prepaid. on receipt of price. withUnjt Adjustable do. Although but thirty -five years old, able !'nit ... á15.00 Unit 110 00 JOBBERS write us today about out -of -town territory Mr. Tin Pan Alley retired the next day. He said he had been a king on Broad- West of Rockies- Prices are $18.00. $15.50 and $10.50 way for more than five years ; that BEL -CANTO RADIO AND TELEPHONE EQUIPMENT CO., INC. made him an old man, and an old dog 872 Broadway, New York City can't be taught new tricks -and so on. But everybody was engrossed with cross-word puzzles so nobody listened to what he had to say. WGR Ensemble I Continued from page 48) to Perhaps it takes this sort of a per- Low Ls s Tune son to get the most out of a violin, S S the PaU. S. Gov- the instrument with such an infinite ernment Cont. capacity for the portrayal of emotions. mrrcial or Ama- GREAT FOR DX teur Radio Li. Noah Webster is credited with saying Selectivity one: cense examina- that the violin is "distinguished for the eel Ied.ask theuser tion. This book :gil 7 nroadeast and will help you brilliancy and gayety, as well as the Amateur Types do it. Send Price 110 fifty cents in power and variety of its tones, and in You should read stamps or coin the orchestra," he further is its advantages in for your copy says, "it detail. Drop us I. -postage pre- the leading and most important instru- I... Bard loth, fnr paid to any point in the ment." t_1. S.. Canada Then, there is Agnes Millhouse. 50c ,or \hair.. This lady may be termed the Volt More -)l!ort4 tmC RADIO INSTITUTE OF AMERICA come- dienne of the group. Probably there A.C.LOPEZ ey' CO. ado Broadway. New York City 40West 33tdSt..NewYorkCity` are few people in the world who get as much real fun out of the joys and "I)u:Illty cods for t;un lily Renders-

www.americanradiohistory.com MA 1, 1925 AGE - THE RADIO MAGAZINE %5 Advertisers' Index

I r'I

Adams - Morgan Co.. Inc. 73 All -American Radio Corp. 3 Allen -Bradley Co. 4 American Electric Co. 58 American Hard Rubber t'o. 58 RADIO .tntennaphone Co., The 58 Apex Electric Mfg. Co. 71 Storage "B" Battery If Rig Lasts Indefinitely -Pays for Itself and performance unheard of before. Recharged Bakelite Corporation 69 Economy Standard by at a negligible cost. Approved and listed as 74 ludln Pop. Radio Laboratories. Pop. Bel -Canto Mfg. Co. le.dlna Radio Authorities and Iw 8ct. Inst. Standards. Radio News lab.. Lefas Inc. her yicel ed with Braude,, C., Inc. 5 port .nt jar.. Heave ...neit° iions. nd th ? arase Branston, Chas. A. 69 Order Your. today) Inc., rowed plates. Anet .tale numl,er or batferio Bremer -Tully Mfg. Co. 73 SEND NO MONEY ant.a ana .r , receivPityed. vert count for Burgess Battery Company 71 endente after vi inaebatter e.. 16 per di malt with order. Nail cour o der now t WORLD BATTERY COMPANY 111. Co., The 68 So. Wabash Dept. Continental Fibre 121MSk moous ontd Red,c 7At Morn n ,i, rr,: no. Continental Radio & Elec. Corp. 63 Prices: e.00a. AllAMP. This NEW ¡ptd u,th Solid Ruble,/ Base. Crescent Radio Supply Co. 61 Croste, Radio Corp.. The Third Cover FOR Cunningham. E. T. Second Cover Wo rl d RADIO Super -Horn STORAGE BATTERIES Deren Radio Co. 65 IKDMA WEAF,W6N -KttlfKG0 KFAF WJVK® Brings Magic Clearness Dubilier Condenser and Radio Corp. 56 to Radio Durham & Co. 73

The new Kellogg Symphony Re- Eastern Coll Corp. 68 Premier producer is a new -type horn recently developed by our experts Federal Tel. Mfg. Corp. 63 "C ROFOOTff on dia- Freshman Co., Inc., Chas. Ge ,J4 Vario Condenser -based the magnetic Frost, Herbert H. 68 phragm principle. "Look for the Red Stripe It radio marvelous General Electric Co. 76 brings to a General Instrument Co. 75 tone -quality, a beauty you have General Radio Co. 8 never heard before. Attaches to Write for free copy of l'rcuder ltulletin Na. fif the many new Hammarlund Mfg. Co. 67 91 giving full de,criptlnn any set and can be adjusted for features of this remarkable low Ina, con- Hull & Co., S. W. 71 denser. as well as particulars of all Premier the particular "volume" require- Quality Radio l'arts. "CROFO07"' has inw- est minimum rapaci» : only five minute phase ments of the set. International Correspondence Schals 69 angle loss; tuning ratio of 1 to 74. Made of brass and hard rubber throughout, for low resistance. $2.75 to $3.75. Vernier com- for At all radio dealers. Ask for Jewell Elec. Instrument Co. 61 plete extra. Write bulletin I and FEE 1100K UPS. it Jewett Radio & Phonograph Co. 7. 5' by name. See it, hear it- Premier Electric Co.. 3809 Ravenswood Ave.. Chicago compare ! Kellogg Switchboard & Supply Co. 75 Quality Parts KELLOGG SWITCHBOARD & SUPPLY CO. 5 j-'vYYlklsY sE. Radio Lopez, A. C., & Co. 74 , Chicago, Illinois Marshall Electric Co. 67 Mica Insulator Co. 70 KELLOGG Mozart Grand Co. 58 Music Master Corp. 67 Symphony Mydar Radio Co. 66 National Carbon Co. 51 $75 to $200 a Week Reproducer National Company. Inc. 60 Right now. everywhere. big. National Radio Institute 61 easy money is being made in Newman -Stern Co., The 70 Radio. Field unlimited.You can With Every Kelto;g master radio quickly at home Price 68 New York Coll Co. as in spare time. Nopreviousexpe- Radio Part, l t lji y., .. rience necessary. Now ie the time Mfg. Co., The 76 4A7/ toenter this new, uncrowded field. Use is the Test r,a Omnlgraph S2Ü Ozarks, Inc. 75 1,000 Mile Receiving Set- FREE Our new home -study methods make everything about radio amazingly simple. No other course like it. Makes you ex- of all 53 pert on radio operation. repairs and installations Phenix Radio Corp. kinds. Send for literature telling all about opportunities Premier Electric Co. 75 and how we give 1.000 mile receiving set FREE. Don't mise this big offer -ACT. Write now for big free book. Radio Association of America Radiali Co. 68 4513 Ravenswood Ave.. Capt. 5 -5 Chicago Radio Assoc. of America 75 Radio Corporation of America Fourth Cover Radio Corporation of America Distributors 70 Make 5100 Weekly -sell RADIO Radio Engineering Laboratories 69 Institute of America 60, 74 Demonstrate Once - Results Mean Sure Sala Radio GENERAL INSTRUMENT Coast to coast,lowest prices,attrac. Rhamstlne, Thos. J. 67 tive four -tube instrument $39.50. MULTIPLES Big commission to you. Exclusive Silver- Marshall 54 territory to proven salesmen. Ter- are GUARANTEED to vary no ritory going fast, write today for Small Ads of Big Interest 69 more than 2% of rated valuea- large illustrated book No. 100. Spaulding Fibre Co. 58 a perfect precision condenser Don't fail to name your county. used where the best is essential Inc. Sift. Co. 59 62.2 Washingtonhi oBd . ago, a4 Thordarson Electric Instrument Tower Mfg. Co., The General Easy Sales Corporation Big Valley Elec. Co. 71 Manufacturers of Laboratory Equipment Profits Vlbroplex Co.. Inc.. The 59 423 Broome Street New York City Wireless Age 57, 65 World Battery Company 69, 75 "Quality Goods for Quality Readers"

www.americanradiohistory.com 76 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1923

sorrows of this old world as Agnes Millhouse. If you happen to be low in your mind Agnes Millhouse could cheer you up. Give her five minutes and she would have you in a spasm of laughter over some happy yarn of her concoction. Naturally, the incident of the "Parade of the Wooden Soldiers" was a great mirth -provoking event to her and she made the most of it. The group is complete with Mary Reynolds, who manipulates the pipe organ. \Vhat ? We hear someone ask. A pipe organ ? You must mean piano. That is the instrument to complete such a group. But, no. Here's some inside stuff. It is no secret but E. M. Statler has a very warm place in his heart for the pipe organ. He thinks that it is true of most of the public. Perhaps he is right. He ought to be. having spent a life -time finding out what the public wants. And if there is any doubt about the four instru- KEEP reception dear! ments blending splendidly -harp, violin, 'cello and organ -you should tune Keep it clear. Keep it loud in on WGR and hear for yourself. So -with all the vol- Mary ume your set should have. Keep the battery Reynolds plays the pipe organ. at top notch -fully charged- peppy. She is a quiet sort of person, interested in everything that happens, but per- The Tungar charges your storage battery over- fectly willing to let Agnes Millhouse night while you sleep and at a cost of hardly add the jazz to the group and take more than five cents. It's easy! Just two clips her fun out in observatory laughs. -and a plug for the house current. Or you can That's the Hotel Statler Concert En- make a permanent connection, and just throw semble. Is it any wonder that M. A. a switch. Keep your set at its best all the time Rigg, Jr., general manager of WGR, -with a Tungar. The Tungar is a G -E Announcer Becker and Fickett, watch product, developed in the great Research its work with great pride and care? Laboratories of Gen- Aside from eral Electric. this pride in good music, there's the fan mail, always the fan The New Model Tun - gar charges radio A mail which proves beyond anything and ES storage bat- else what a good teries, and auto bat- feature it is for the teries. Two ampere noon -time audience. size ,East of the Rockies . . . $18.00 A Tungar is also available in five am- Tungar a registered trademark --is found only A Radio Star pere size, design un- on the genuine. Look for changed (East of the it on the name plate. (Continued front page 29) Rockies) . . $28.00 Merchandise Division to me themselves, or else they simply 60 rye/es-HO volts General Electric Company, Bridgeport, Conn. do not understand. I do make my personality felt ! It is the personality in my music that makes it art -and that GENERAL brings people to write these enthusias- ELECTRIC tic letters. You can't arouse enthusi- asm with machine-like, personality less playing, can you ? No. Others use the voice to tell you of themselves, while I can say all kinds of thoughts with my little old fiddle." And, speaking of personality, glance Learn the Code at Home with the Omnigraph back at that string of photos. Is it teat ping- THE OMNIGRAPH Automatic Transmitter will not a fact teach )ou both the Wireless and Morse Codes - that if under each of the six right In your own home -Quickly, easily and in- expenvlvely. Connected with Buzzer, Buzzer and of them were a different name, you Phone or Sounder. it will send you unlimited mes- would sages, at any speed from 5 to 50 words minute. never think to question, but THE OMNIGRAPH is not an experiment. For what more than 15 years it has been sold all over the they were so many different in- world with a money back guarantee. THE OMNI- dividuals! GRAPH Is used by several Depts. of the U. S. Half a dozen vivid person- Govt. -in tart the Dept. of Commerce uses THE OMNIGRAPH to test all applicants applying for alities wrapped up in one personable a radio license. THE OMNIGRAPH has been successfully adopted by the leading Universities. girl, that is Madeleine MacGuigan, College: and Radio Schools. violin virtuoso Send for FREE Catalog describing three models. of the air. What won- DO IT TODAY. der that we radio fans find her music THE OMNIGRAPH MFG. CO. fascinating, even 16tá Hudson St. New York though it conies over City a hundred If you Own a Radio Phone set and don't know the code-you are missing most of the fun or a thousand miles of space? "Quality goods for Quality headers"

www.americanradiohistory.com Amateur Stations of the United States Supplementary List

8 AHM Harold C. Block ..I Short Oak St., Ypsilanti, Mich. 9 BYO Malcolm H. Gibson, 2110 N. 8111 St.. Eighth District 8 ALG Geo. Meek Pike St., Shlnnaton. W. Va. Modest gar . W s. 9 BVQ Godfrey Wandrasek, 3232 Nagle Lowell St.. Rochester. N. Y. 8 AMC Mr. John Are.. Chicago, Ill. S ASI Bennett KendiS....39V4 1V. Jones, 15 Prospect St.. Cobleskill, N. Y. 8 BWT Raymond O. Rapp. 3711 Greenvlew Are., Chicago, Ill. 8 BEW Edward KlInko.. W. 610 St. Cockhart Sayre. Pa. 8 AOA E. W. Dempster 977 St. Johns St., Lima. Ohio 9 BXS Emmet L. Anderson, 221 hay Shore St.. Marinette, Wis. 8 RFC Frederick R. Thomas. Jr.. Hotel Danford, 8 ACV Wayne L. Faith R. F.D. 3, Montpelier, Ohio Woodsfield, 9 BZX William Diltenhofer, 807 Summit Are. Ohio 8 AQV E. H. Flowers.. Penna. Are., Extension. Irwin, Pa. St. Paul. Minn. 8 BMV William B. Hanlon, 511 North Ave., 8 AUX 9 CAI Clayton 1Vanek 920 11ith St., Aurora. Nebr. Wilkinshurg, Clinton L. Blakely, Sampson Are., Pa. North Girard. Pa. 9 CBD James .1. Grimm, 101 W. South Si.. Nokomis, Ill. 8 BOW Henry L. Carter, 580 N. Goodman St.. Rochester. 9 CBQ Arthur W. lt. Phillips. Robinson Creek, Box 361, N. Y. 8 AV() Alfred G. Wck, 611 W. Madison St., l'Ikeavllle, Ky. R BPH John McClure. Stop B. 139. Shore Line, Lansing, Mich. 9 CBS L. B. Tuckerman, 417 Edgcweter Drive. Euclid, Ohio 8 AWH Tite Wm. F. Gable Co 1320 Twelfth Ave.. Mishawaka. Ind. 8 BX Donald Steward, 1013 W. Main SL. VanWert, Ohio Altoona, Pa. 9 CBU Western Illinois State Teachers' College, W. Adams St.. 8 BZK Paul Roth, 13610 Larchmere Blvd.. 8 AXI J. Wilbur Jones. East St. Extension, Almonds, Ill. Cobleskill, N. Y. 9 CBX Maurice A. Davis. 1617 Grand Ave., Parsons, Kam. Shaker Heights. Ohio 9 CCL Albert R. Kahn, 1069 Rorerside Drive, 8 CHY 8 AYM Max II. Edwards Lelpslc. Ohio Edwin E. Reiser 32 Plum St.. Westerville. Ohio South Bend. Ind. 9 CCU Fred L. Gelait CTF Clarence Young. 33% Cedar St., Binghamton. 8 AYE Donald F. 51acKenzle, 1332 Duncan Ave., Box 611, WVashington, Ill. N. Y. Cincinnati, Ohio 9 CCX Howard Kelly, 726 E. 16th St.. Mhmeapolls, Minn. 8 DELI John C. P. Levels. 1171 Sfrthigan Ave Buffet°, N. 9 CCY Victor Nelson, R. F. D. 1, Box 71, Long Island, Kans. Y. 8 AYO David G. .1cFarlln, 29 W. Marion Ave., 8 DIL Henry Gilmore, 705 W. Cross St.. Ypsilanti, 9 CCZ A. Verne Roberts, 1241 l'erry Ave., Wichita, Kans. Mich. Youngstown, Ohio 9 COB William W. Bradley, P. O. Box 8 DRY R. 76. Lewelten, Nebr. C. Wendier, 5736 Field Ave.. Detroit, Mich. 8 AZR Trevor D. James, 141 Venango St., Johnstown. l'a. 9 CDF Heber C. King Arilla, Sto. 8 EN Clyde Hillman, 630 N. Neeley Ave Pitsburgh, Pe. 8 AZY S. A. Swicner 725 Charles St.. Luzerne, l'a. 9 CDH Arthur Shaw 730 East End Ave., Chicago. III. 9 CDR Dale D. Jenkins 903 Eighth St., R ILL Elwyn 8. Corning, Iowa Marvin....102 Willits St Elmira. N. Y. 8 BEIL Richard Bouumen. Route No. 12, Box 94, 9 ('D7, Mark R. Williams Skidmore, Mo. S ZAD ' Volland, Mich. 9 Allen E. Apple. 115 Se. I Muent St Dayton, O1110 CEO Ferman H. Karr Quitman, Mo. 8 ZIIF Robert C. Bohannon 8 BSX John C. Flhmer 1434 Boyle St.. Pittsburgh, Pa. 9 CPT Glen F. Franz 524 Bluff St., Beloit. Wis. Columbus, Ohio 9 E4' Ralph W. Ballard....404 E. Jlth St.. Chicago, 8 8 BVQ Leonard K. Kranz 45 Ill. XAV University of Cincinnati, Elec. Engr. Dept., Cedar St., Akron, N. Y. 9 EX harry B. Clark-41.30 Ashland Ave., St. Louis. Mo. Cincinnati. Ohio 8 BWI Barney Warner. 14 No Grant St.. Wilkes- Barre. Pa. 9 FA Good's Radio Shop, 1954 W. Madison St.. 8 XBB Reo Motor Car Co. Lansing. Mich. 8 BWX Raymond Hall Maple St., fort Allegheny, l'a. Chicago, 111. 9 FG Irving Hecht. 2206 North Ketlele Ave.. Chicago, Ill. 8 KO Harold W. S Helen A. Elliott, 7622 14th Ave , Detroit, Mich. BXF Gilbert 1005 Union St., Rome. N. Y. O FO Herbert O. Erickson, 653 Bittersweet Place, 8 SI) 106th Cavalry Headquarters. Det. M' S. Mich. 8 BXK Ralph K. Snedden, 427 North Court St.. Chicago, ill. Nat'l Guard, 114.1 Collingwaod St Detroit, Mich. Medina, Ohio 9 Itt Clarke & Wahlstrom..(711 Estes Ave., Chicago, Ill. 9 5W Thomas E. Davis Benson, 8 WP Frank .1. Hack. 67 8 BY Milton C. Kramer, 26 Coulter St.. Grafton, Minn. Randolph St.. Rochester. N. Y. l'a. 9 UP Adolph J. Zeithamme1..2503 S. 61st Ave., S AAE Abraham A. Wilder, 1535 Sixth St Detroit. Mich. 8 BYZ Stephen P. Byers, 341 Philadelphia St., Indiana, Pa. Cicero, Ill. S AEX Orville F. 8 CBI Otto Nicklous Geyer, 1382 E. Livingston St.. 9 ACN Clark W. A. Barnard Seneca, Mo. Smith. R. D. 1 Bellefontaine, Ohio J 8 AKII {Villard Columbus, Ohio AEH Otho H. Steelomith.. R. F. D. No. 2. Rippey, Iowa F. Penn, 2423 Catalpa Dr Dayton. Ohio 9 AKQ John llerzog, Jr., R. F. D. No. 4. Box 202, 8 CBK Robt. H. Shenk 232 West 21st St., Erie, l'a. 8 ALJ Carl Lulus, 4900 Arnold St Cincinnati, Ohio Kenosha, Win. 8 BBL Coleman Murphy, 8 CBL Edward C. Blahay, 173 E. Maynard Ave., 9 AGA Wilson Leeman Medllla, Nebr. Jr., 55 Dinsmore Ave., Crofton, Pa. Columbus. Ohio 9 AGJ James N'. Heibering, 712 IAFuyette Ave., 8 BEE Richard E. Palmer....207 John St., Owosso, Mich. 8 CDA James D. Love. South 7th St.. Medonnellsville, Racine, Wis. Ohio 9 Theodore Johnson.. D. Sheridan, 8 BOF Edwin H. McMahon-574 Linden Are., Buffalo, N. Y. AIfi ..R. F. No. 5. Ind. 8 CDE Thomas F. Fisher 422 I'Ine St., Tamaqua, l'a. 9 AUX John G. Waggoner, 31 E. Chalmers St.. 8 BRO Roger W. Hilt.. ..Belmar Pl. East Liverpool. Ohio 8 CCN Tom Hammond Shinnston, West Va. Champaign, Ill. 9 ESO Wilbur Mark 9 AOI Joe E. Finch, R. F. D. No. I, Ilex :3, 116 Prospect St.. Newark, N. Y. 8 COZ Radio Assn of Western New York. 8 BUH Willis L. Wheatrldge, Colo. Boorman...Liberty St.. Fatrgrove, Mich. Broadway cor. Potter. Buffalo, N. Y. 9 APA Kenneth W. Rover, 4532 S. Dupant Ave., 8 BYE Edward I.. Clark 246 W. Fifth St., Erie. Pa. 8 CIA Daniel T. Jones....121 W. Main St., Nanticoke, l'a. :ilnnealuslie, Minn. 8 9 AQII Fred C. Soper, MA) Dilworth. Minn. BWF Chester R. Downs....627 Taylor Ave.. Warren Ohio. CIB Daryl S. McClung, 1221 Ninth SL, 2215 Huntington, W. Va. 9 ATE Sidney C. Famed. W. 5th St , Sioux City, la. 8 BWO Howard A. Bird. 1042 Kensington Ave.. Buffalo. N. Y. 9 SL McCarthy. 8739 CLA Theodore Bolton-122 S. Fitzhugh, Rochester. N. Y. HBO Fred S. Bishop St.. Chicago, Ill. S BWI Barney H. Warner. 14 No. Grant St.. Paul T. Bricker Franklin St., Freeport, Pa. 9 BOO James M. Slum. 415 W. Slain St., Clarinda. Iowa Wilkes- Barre, Pa. CMG Dr. Edison B. Gerlach, 3821 Dorer Ave., 9 BQU Alfred W. [Vlekeaherg, It. F'. D. No. 2. Box 40. Appleton, Wis. 8 BWL Tom Joseph. Jr., 105 No. Hampton Cleveland, Ohio Rd.. 9 CEP Whitfield Selgnlous, 1121 Rosemont Ave.. Cuyahoga Falls. Ohio CJ Frederick L. Stites-316 Elm St., Kalamazoo, Mich. COO Wm. Wherry-759 Ridgeway Are., Cincinnati, Ohio Chicago. 111. 8 BWX Raymond Hall Maple St.. Port Allegheny, Pa. CZJ Paul Stump Columbus Grove, Ohio 9 CET J. H. Amts 915 Lincoln Ave., Topeka. Kans. 8 BYU Clarence Miller-15512 Hillard Rd., Lakewood. Ohio CZQ Geo. W. Grening, Keystnne Academy. 9 CFB Maynard R. Briggs 51 S. Albert St.. St. Paul, Minn. Pa. 9 CFE T. .1. Roehl. 930 15th Are., S. E.. Slinneapolls, Minn. 8 BZH Earl D. Fay 601 Deer St.. Dunkirk. N. Y. Factoryville, ADE Trevor A. Reynolds, 550 East Ave.. Medina, N. Y. 9 CFF George W. Glaser 229 Freemont Ave., KIhmurst Ill. 8 BZL Bruce D. Cole. 857 Fuller Ave. S. E.. AEL John H. Fraser, 6900 Perryville St., Ben Avon, Pa. CFO George C. Hume, Jr., 151 School St.. Chilton, Wis. Grand Rapids, Mich. AHA Lovell Shipman, 3411 Hutburt St., Detroit, Mich. CFt% Leonard R. :Reader. 657 Quincy Court. Alton. III. 8 CAS Calvin Werner 156 Quitman St.. Dayton. Ohio AIE Pietro Muscari 125 High St., Marietta, Ohio COK Harold V. Pace, 1413 Stowell Ave.. Milwaukee, WI.. Arthur C. Wrigley, 1254 Hllldale Ave., CGL Milan Kinsey, R. F. D. No. 2, Box S CBN Michael AKJ la Schonvizner 615 Literary Rd.. South Hills Branch, Pittsburgh. Pa. t'ouncl Bluffs. loue Cleveland, Ohio AM Elmer G. Immel, 1539 Elmhurst Ave., Detroit, Mich. COW Roy D. Miller. 1720 N. 12th St.. Sheboygan. Wis. 8 CCN Stuart Wadsworth, 743 Forsythe St.. Toledo. Ohio OM Burton Starks 600 Pingres Are., Detroit, Mich. CGX Edward L. Masterten, 1816 E. 79th St., Chicago. III. 8 CCV Donald T. Michael, 4125 Ihltetsal Ave.. AME Wm. L. Bell, 1908 Wightman SL, Pittsburgh, Pa. CJO Ben J. Chromy. 235 Masons St.. Milwaukee, (VII. Cincinnati. Ohio ATP Howard Selby Bays, 132 Sixth Ave. CPF 4V. Marty Jennings, 527 E. let Ave. So. Charleston, W. Va. Ceder Rapids. Iowa 8 CDL Wm. L. Dutton 88 Henrietta Ave.. Buffalo. N. Y. AVX Gerald Hyter 1319 Flet St., Toledo, Ohio CTD Harold E. and Archie M. Pohl, 310 Linn St.. 8 CDN August Makowka 1206 Bank St. McKeesport, Pa. BAU Francis Gibb 2639 Neil Are., Columbus, Ohio Boones. loua BBI W. Guy 621 Florence Ave., CC(/ James B. Pollan]. 2951 E. 11th Ave.. Denver, Colo. 8 CDO L. Watson, Royal Oak, Mich. Burt Baldwin-2828 Central Are.. Cleveland, Ohio BC Melvin Burtls....716 McBride St, Syracuse, N. Y. CW1 Everett Stone 90 Pewblc St., Houghton, Mich. 8 CDR Howard O. Snyder., 63 Leander Rd.. Rochester. N. Y. BCH Mr. P. Strangward, 17810 Lake Ave.. DJSI Sherman A. Breve, 100 E. Benton St.. {'leer Latte, Iowa S CEG Gordon E. Hann, 1519 Wood Rd., Lakewood. Ohio Cleveland Heights, Ohio RCM Francis Bandy..505 Rebecca Ave.. Wllklmburg. Pa. DKF William E. Sparrowgrore. 4003 Thini St., BAN Craig McKinney 309 N. Plain St.. Ithaca, N. Y. Des Moines, Tows 8 CEH Edward L. Wlssmlller. 121 S. State St., Caro, Mich. BRH W. E. Nichols, 607 Bellefontalne St.. DLF John A. Garerave Anela, N. Dak. 8 CES Wm. Horner. 1221 Woodmont Are Wapakoneta. Ohio DMA Aka A. Smith.. .. E. Main St., Caledonia. Minn. New Kensington. Pa. Paul Heasley, 550 No. Portage Path, Akron, Ohio DWK Alvin R. Ueleke....301 S. High St., Jackson, Mo. EHT Norvel 1622 Hampshire St., Western CBM Harold W. Allport, 2945 Seybum Ave., Detroit, Mich. Douglas. New 8 CEU Reserve Academy Hudson. Ohio CEF Robt. Stephens 436 McKee Are., Monessen, Pa. Lawrence, Kans. 8 CFE Lewis J. Ashworth, 828 Third Ave., CRL H. Strobe 2145 Hibbard Are., Detroit, Mich. EJ Robt. E. Compton & Oliver Kirchner. Huntington, W. Va. DBI E. E. Seymour, 333 W. Perkins Ave., 412 Wabash Ave., Carthage. Ili. 8 CFJ LaVern W. Chase. 1216 Wells Pl., Kalamazoo, Mich. andusky, Ohio JD Gilbert Meredith, 860 Fifth St. N. W., Linton. Ind. DO Noel J. Groh 151 Bradley St., Buffalo, N. Y. AEZ Wallace R. Smith, 2311 W. Third St.. Duluth, Minn. 8 CGH Seneca Vocational School, 787 Seneca St.. DOY Edwin E. Hare So. Hall SL.. Wilmington, Ohio AJB Ora A. Koch Hampshire, Ill. Buffalo, N. Y. DSC Edwin E. Hare. 61 Solon Bldg., Charlestown, W. Va. CHB Harold M. Hussman, 5 Sherman PI Appleton, WI.. 8 COL Geo. R. Homan 413 W. High St., Lima. Ohio CH11 Horace Wahl Victor, Iowa CHH Ralph C. Spelt. Gregory South Dak. 8 CIA Daniel T. Jones....121 W. Main St, Nanticoke, Pa. CHM Henry Bosch 4827 Ellis Ave., Chicago, Ill. 8 CIB Daryl McClung, 1221 9th St., Huntington. W. Va. Ninth District CHQ Charles F. Craig Afton, Iowa CITY Otis L. Carpenter....10111 8 CKA Cold H. Peck 428 Park Ave., Waverly, N. Y. Clinton St.. Lincoln, Ill. CL Crane Technical High acid., Van Buren & CIA Raymond O. Wise... .2602 Lincoln Way, Ames. Iowa S CKF Emerson Mehrling 105 Dale Ave., Willard, Ohio Oakley Blvd., Chicago, III. CIB Robert B. Guthrie, R. F. D. No. 1. Box 185. DU Dallas R. Wilder, 512 Denver 8 CEO Frederick Honren, 140 Lexington Ave., Dayton. Ohio Are., Chicago, Ill. N. Milwaukee, Wis. EK C. F. Burgess Laboratories, CIS Henry O. Sandifer, 305 E. Lexington St.. 9 CKH Wells A. Gardner. 2404 W. Monroe St., 1011 E. Washington Ave., Madison, Wis. Danville. Ky. Sandusky. Ohio 8. Ellison Sayers, .208 E. Monroe St., Mexico, Mo. CJY Theodore P. Kinn. 1224 California St 8 CRI Edward B. Beresford, 3621 Wabash Ace.. MQ Waiter J. Muir 2857 Fulton SL, Chicago, Ill. D , Colo. Cincinnati, Ohio AAR Roy Beck. 827 N. Dodgeon St.. Independence. Mo. CLS Dana McNell....510 Summit Ave., Pierre, S. Dab. AAX Richard J. Fencll, 2804 W. Stich. SL, Duluth, Minn. CLU Lee R. Watts Corning, Iowa S County Station St.. South Haven, CPF Club Center Mich. AEO Carroll Matson Burke, 8. Dak. CON Edward J. Bromley, Jr Whitewater, Wis. 8 CQK Arthur L. Puffer West Springfield, Pa. AFO Ralph Billings, 2119 W. 107th Place, Chicago, Ill. CUE Robt F. Gephart Franklin St., Edinburg. Ind. BCG George K. Shirting, 1338 Ohio St., Lawrence, Kans. S CQM Ben Turpen 1907 Crane Are., Cincinnati, Ohio CUP Wallace T. Itensen Bancroft, Nebr. BCX Victor T. Wedel 1220 High St., Keokuk, lova. DOY Ralph E. Goodwin Wenona, Ill. 8 CYF Evart Fountain, 1031 Walnut St., Lansing. Mich. BCY Edward Goadberiet 6604 Eyler Are., St. Louis, Mo. AOK Ivan D. Horton..11 Felton Ave.. Gregory, S. Dab. 8 DOZ Frederick J. Homan, 1218 Waohtenaw St.. BEK Albert V. Chase. Jr., 472 Menlo Blvd.. AQC David H. Lentz, Jr...30t Whitley Ave., Joliet, III. Ann Arbor. Mich. Milwaukee, Wis. CJD Chester W. Pendarvis Arkansas City, Kans. 8 DRE Margaret Burke, Stop 5, Covington Pike. BEY Falls Cities Radio Asso., 220 S. Fourth St.. CJN William Harnishfeger, 1701 Lanternier St.. Dayton, Ohio Louisville, Ky. Ft. Wayne. Ind. BGL Edward B. Stern, Peninsula Hotel, Lindstrom, Minn. 8 DE Ralph P. Brillhart 943 East Main St., CJP Arthur W. Swerine Atmore, Minn. Coshocton, Ohio BIM Walter B. Roe, 5311 Lakewood Are., Chicago, Ill. CON William W. Roper, 410 E. Bryan St., BKB Theodore Slundhenk, P. O. Box 914., Winner, S. Dak. 8 GI Harry Anderson, 416 Glen Are., Ellwood City, Pa. llopkinsvllle, Ky. DE W Alfred Beech Springfield, Minn. CTF Robert F. Allen, Jr., 809 Indiana Are., 8 Herbert JO %Weimer, 844 Nagold St., N. W. BEY Edward E. Brautigam, 1507 Selby Are., :Mendota, Ill. Grand Rap,ids, Mich. St. Paul, Minn. DBD Franklin H. Avers, 730 Prospect Ave Portage, Wis. 8 OH Oscar T. Sayers, S Sherman St., Bhisefeld, Mich. BLV Paul B. Nelsen 622 Main St., Anoka, Minn. DQZ Arthur G. Hebb. Jr.. 9.27 Pepper Are., 8 RO Joseph A. Giese, 916 Armory St.. Cincinnati, Ohio BMB Norman L. Conrad, 527 N. 54th Are., E., Lincoln, Neb. 8 RR Lester P. Evans, 100 East Channel St., Newark, Ohio Duluth, Minn. DEG Elmer R. McMullen, 222 Superior Are.. 8 ZH Frank D. Fallahn, Police Bldg., Beech St.. ram John D. Breeding, 508 Capital Ave., Frankfort, KY. Tomah, Wis. Flint, Mich. BNY Fabian R. Fletcher Brookfield, Mo. DER Edwin C. Shaw. 400 N. Third St., DeSoto, Mo. 8 RO Charles Gault 329 Maple St.. Ypsilanti. Mich. BOW Hubert M. Scholes, P. O. Box 235. Burke. S. Dak. EAB Richard C. Wells, (Changed), 905 25th St.. L. Rohn 824 Vine St., Denver, Colo. 8 TZ Guy Smith 112 Fifth St., Sunbury, Pa. BQL Richard Moline 111. BQQ Charles W. Scott, 6026a Washington Ave.. JO George Damman 725 Oskton St., Evanston, 711. 8 ZT Jas. B. Hampton....20 Mechanic St.. Pontiac. Mich. Institute St. Louis Mo. RX Gerald D. Barton. 1201 Bluemont Ave., ß ABO Mechanic Radio Club, Plymouth Ave.. Erwin W. ]tartens R F. D. 2. Gresham, Nebr. Manhattan, Kans. Rochester, N. Y. George A. Riddell, Jr., 2206 N. 6th St.. VM Albert Millington. 100 E. Elm H. Dice..218 BSN St, Canton, Ill. 9 AER Walter Beech St., East Pittsburgh, Pa. Sheboygan, Wis. WI Lewis C. Meek, 521 S. Downing St., Denver, Colo. 77

www.americanradiohistory.com 78 WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925

9 AFN Donald H. Stover. 725 W. Avon UOI William Morrison St.. Freeport. III. H. Bradshaw, Nebr. 9 DIN Harlan J. Dewltz....R. F. D. No. 2, Wisner, Nebr. 9 AIR Joe E. Smay 2942 Orchard SL., USN 517 Lincoln. Nebr. Luther J. Jensen, Greenup St Covington, Ky. 9 DZY Reno C. Hiltabidel Wiley, 9 Alit Hoopeston Radio Shop. 513 E. Seminary St.. UVA Osborne A. Fischbach. 224 S. Poplar St.. Seymour, Ind. Coln 9 UH Richard T. Brackett. 10 E. Lewis Hoopeston. 111. DVH Woo,sey Radio Co.. 7248 O.eander St.. Chicago, Il. St., 9 ALX Stanley Tullman. 3927 Beachwood Ave., DVI Clifford Hamill....726 Illinois St., Lawrence, Kars. Vermillion, S. Dak. lne UWO Hugh S. McCartney, 9 DQ Harry B. Clark and klllton Welhoelter, 9 AOG Clifford 4 250 E. Illmoe. 1831 Coming St. YParsonsnKans. 2530 S. Lyndale Ave., Minneapolis. Minn. Athlone 9 AOI' Leslie Anderson. 1452 Balmoral Ave., St. Louis. Mo. Ave., Chicago. III. XAZ State University of Iowa 9 9 AQM Wilford G. Cooley. 1831a Iowa City. Iowa KP Nick Wssterveld....10555 Wallace St., Chicago. ¡U. State St., 1V W. Ulrich 529 Cul Grant St.. Chicago, Ill. 9 LM Claude Johnson 98 Fifth St.. Granite City. III. UG Robert E. Hughes. 2750 Reese Momence, Ill. 9 HBO Fred M. McCarthy, 8739 S. Bishop St.. Ave., Evanston, Ili. 9 SE Dwight A. Bancroft. UF David Levy 856 N. Haynes St.. Chicago, 4028 S. Abbott St., Chicago. III. Ili. Minneapolis, Minn. 9 ERR Joseph AOK Arthur V. Gravie, 5055 Spalding Ave.. St. Louis, Mo. A. Brence, 920 Adams St., Waukegan. III. 9 ACC W. E. Lehnart Blakeley, 9 BET Roy C. Pesky. 818 Humboldt St., CBF Alf. M. Myhre. c/o Holt Motor Co.. Milbank, S. Dak. Minn. Manhattan. Kane. 9 ACS E. 9 CBF Alf M. Myhre. care of Holt Motor Co.. CUM Edwin W. Landgraf. William Brant, Jr.. It. F. D. No. 2. Milbank. S. Dak. 546 S. Pacific St., Cape Girardeau, Mo. Hillsboro, Ind. 9 CFB Maynard It. Briggs. 51 S. Albert St.. DBM Stanley D. Flaher 2030 Kinzie Ave., Racine. Wisc. 9 ALU Edgar F. Johnson, 502 E. Wood St Waseca, Minn. St. Paul, Minn. D1J Fred and Marry Seltzer. 9 APC John J. Moran, 293 E. Second St.. 9 CIZ Kenneth A. Smith. 934 William St.. Chester. Ill. 3307 Douglas Blvd., Chicago, III. Fund Du Lac, Wise. 9 CKZ Wallace Howard. 2333 DLQ Noble 13th St.. Boulder. Colo. C. Lippincott. 325 Cook St., Lake Geneva, Wise. 9 API Kenneth Oliver R F. D. 9 CVR Albert B. Marshall. 316 St., No. 3, Emerson. Iowa Caldwell DRW Frank J. Whalen, 9 ACJ C. Clinton Hawkins Louisville. Ky. 17th St. Main St.. Alden, Minn. and Duncan Su.. Joseph, Mo. 9 AVH John 9 CWX Jesse H. Lofton, 414 E. Liberty St.. Mexico. Mo. AUA Winfred C. Hligedlck Hubert. Minn. C. Bayles. 236 S. Second St.. Chillicothe. Ill. 9 CYK Russel A. Cline. 521 S. Main St.. Maryville. Mo. BQO Clarence It, Bhenberger, 9 BOU Erwin G. Schroeder...61 W. 112th St.. Chicago. Ill. 9 DDP Carl A. Jacobsen 9 slain St., Kenneth. Minn. 117 W. Forest St Marengo. IU. ENE University of Missouri, 604 S. Ninth St., 9 DFV Warren D. Itlrkhead, 1842 Wageland Ave.. B9L Stanley H. Burke, 5727 S. Sawyer Ave., Chicago. III. Columbia, Mo. Chicago. Ill. Ell George W. Pligram.1885 Edmond St.. St. Joseph, Mo. 9 BBV Alva R. Crosby 9 DIM William E. Voltz, 219 E. 10th St.. Appleton, Minn. Michigan City. Ind. DK William H. Hobbs, 9 CDT Robert L. Worrell Walkerton. Ind. 9 DIU Ralph R. Miner, 113 E. Reese St., 2001 Edgeland St.. Louisville, Ky. 9 MR Harry R. Likens, 1420 E. Winchester Ivan J. Bulock, 718 E. Second St.. Fairmont. Minn. Ave., Fond du Lac. Wis. Ashland, Ky. 9 »KG Jack R. Adams. 1602 Cant horn Ave., Columbia, Mo. 2 Louis F. Leuck, 1718 8. 14th St., Lincoln, Nebr. 9 DAB Howard Wolcott ATR Hal 1'. Rea. 718 Locust St., Chillicothe. Mo. Wakefield, Nebr. 9 UKH Virgil Swearingen. 501 N. Willis Ave., 9 DAC Addison T. BEA Robert U. Wahlstrom, 105 S. Babcock St.. Urbana. Ill. Duller, 1610 "A" St Lincoln. Nebr. Champaign, Ill. 9 DAR William J. Mesmer, 9 DKQ Harry B. Manning 114 S. Euclid St.. No. 114 HIE Howard Powers 309 8. Pleasant St., Princeton. Ili. 544 W. Fourth St.. Sioux Falls, S. Dak. Bl'Y Edward M. Van Dune, Ottumwa. Iowa 9 9 DLQ Noble C. Lippincott. 325 Cook St. 1726 Grand Ave., St. Paul, Minn. DBO Arthur Q. Lewis. 901 E. 11th St., Bloomington, Ind. Lake Geneva, Wis. DAA Fredk. E. Williamson..552 Arlington PI.. Chicago. III. 9 UCL Cecil E. Barrette. 310 Second Ave.. 9 DNC Paul Palmer 3145 "S" St., Lincoln, Nebr. DllV Charles E. Ashabraner, Watertown, S. Dak. 9 DOE Alfred Bergtold, 5023 SL Louis Ave.. 1014 Clark St.. New Albany, Ind. 9 DDK Russell 81ndt, 1509 Washington St., St. Louts, Mo. DKI Edward Hardebeck New Athens. Ill. Cedar Falls. Iowa 9 DYY John F. Melody 208 Broadway, Peoria. Ill. UHU G. Luther Anueraon..200 N. Chicago Ave., Lincoln, 1.1. 9 DEK Robertson B. Johnson, 1814 Carroll Ave.. 9 ACF Paul Garotto 2115 Pratt St.. Omaha, Nebr. AB Carl M. Leidhmdt, Jr., 20 Jefferson Ave., 9 AFR George G. Glade, 1820 St., Lincoln. Nebr. St. Paul, Minn. "G" Chippewa Falls, Wise. 9 DFP Charles A. Rohner..209 9 AFT Eugene W. Applebaum, 1111 Alnslee Ave.. 8. Albany Ave., Chicago, Ill. AK Charles M. Orcutt, 2702 Cottage Grove Ave.. 9 DFS Charles J. Webster Chicago. Ill. Des Moines. Iowa Cogswell. N. Dak. 9 GW James E. S. Hayes, 1014 E. 11th Ave.. Duluth. Mina. 9 UFY Lester W. Beery.... CB George C. Harvey. 365 S. Maple Ave.. R. F. D. No 2. Rockwell. Iowa 9 CKB Philo H. Tucker. ...722 Randolph St., Wons. Iowa 9 DUB William .1. Beethan Ave.. Webster Gnoses, Mo. Fennimore, Wlae. 9 AFF William W. Bingham. 3101 N. Keslzie M1nn. 9 DOJ Walter W. Rickman Chicago. Ill. CO Jerome T Shannon..014 E. Ninth Ase., Duluth, Keswick, Iowa CV Joseph E. Deitis..489 E. 13th St.. Topeka, Kans. 9 DOE Benhart O. Tweet 9 CW'U David C. Maloney. 1913 Division St.. Radcliffe, Iowa Slurphyshoro, Ill. UI William J. Bawer Tobias, Nebr. 9 DUC Martin L. Blumotoln W. Java, S. Brighton, Ill. 9 CVA Boyd L. Thorp. 2118 Dewey St.. Murphysbore. IIl. EH Carl Clement Main St.. Dak. 9 DHD Robert H. Martin. GE Thomas J. Flies 2500 61st Ave., Cicero, III. 815 Cauopoll St Elkhart, Ind, 9 CYR Raymond L. llerchert, 4728a Delmar Ave., 9 UIJ John F. Rogers..714 Laurel St., St. Louis, Mo. GJ Francis M. Schmidt Farina, Ill. Ds Moines. Iowa St.. 9 DJD Andrew G. 9 D%1' Marvin Elrhorn. 858 N. 15th St.. Manitowoc, Wis. GU Frank Opdyke, Jr.. 211 N. Jackson Woolfries....304 Welds Ave.. Ames. Iowa W. 9 UKJ 9 ELC Harold E. Stepp. Soi North Greeley St.. Frankfort, Ill. Ellis W. D'Arey..1330 Central Ave., Wilmette. IU. Stillwater. Minn. HH Clarence F. Lippert MicVille, N. Dalí. 9 DKV Theodore C. Goodner, 409 8. Third 9 Wisc. St., 9 FU Charles Jun, 6140 S. Albany Ave.. Chicago. III. 11W Bates Radio Cu...485 Wahl Ave., Milwaukee, Rocky HZ Lester Borchardt. 2111 Grand St `llN. E.. Ford. Colo. 9 FU William K. Ingle. 004 Woodbine Ave.. 9 DOW Mahlon W. Garrison, 302 Fifth Ave., Oak Park. III E.Minn. S. E.. 1K Charles J. Webster Cogswell, N. Dak. Minot. N. Dak. 9 DSC Harold O. Sehabel, 940 Washington Ave.. 9 DPS Raymond Mishawaka. Ind. JH Mark II. Leib %lain St.. Marengo. Iowa D. Chamberlain. 1ll8 W. Seventh St.. 9 EKG Fred'k G. Saint....199 Berteau Ave.. Elmhurst. III. JJ Frank G. Anger..3268 Fullerton Ave., Owego. Ill. Grand Island, Nebr. 9 DRP Elbert R. Tilden 9 EKA Elden E. DuRand. Jr., 1336 Castlewood Ave., JV Geu. S. and Thos. C. Carson. 900 College St.. Mt. Morris, Ill. 9 UHT Louisville, Ky. Iowa City, Iowa John It. Martin. 204 N. Flot St.. Rockwell City, Iowa JE E. Adams Arllla, Ind. 9 1/SB 9 ELS Colorado Springs high School. High School Bldg.; Harry Carl R. Raymond. R. F. D. No. 18, Box 28. Colorado Springs. Colo. KO Theodore Palmgiela. 720 S. State St., Bunker Yates Center. Kans. Hill. Ill. 9 BM Elden F. horn 2017 Hudson St.. Denver, Colo. 9 DVN Clarence W. Thyberg, 1907 S, 13th Ave.. 9 EU Earl R. Thornburg..503 First St., loon Rapids. Iowa KL E. W. Nosy ..811 E. Fairchild St., dosa City. loua Minneapolis, Ave.. Berwyn. KY Frank L. Murphy..4575 Gibson Ave.. St. Louis. Mo. Minn. 9 GI Everett C. Smith...3611 Elmwood Ili. 9 UVP E. C. Kessler 522 W. Third St., Maryville. 9 HQ John N. Becker, 73G N. Raymond St., Brooktleld. Ill. LEI Oscar A. Paste, Jr.. 821 N. 13th St., St. Joseph. Mo. Mo. 9 UVU Earl S. Johnson, 3516 Jackson 9 HY Jesse Huber Jay, 1311 Wisconsin St., Racine. Wisc. LP Irvin R. Llnnard....210 E. Wilson St., Peotonc, Ili. Ave., Kansas City. Mo. 9 DWI Frederick 9 lO The Radio Club, Inc 1132 Indiana Ave.. MP Julian Itoemhrld..5203 Kimbark Ace., Chicago, Ill. Cronvold, Jr., 910 N. Broadway, LaPorte Ind. MS LeRoy J. Morrlre Wallingford, louva Fargo, N. Dak. 9 JE Philip S. Westtoll, 928 N. Grove Ave.. Oak Park, Ill. MY James C. SLIM-527 N. Superior St., De Pere. Wisc. 9 DXG Fred A. Smith-7646 East End Ave., Chicago. Ill. 9 WZ Ralph Heiberg. 1700 N. Third Ave., ND Arthur T. Doyle-3432 Abner Pl.. St. Louis, Mo. 9 UXO Robert W. Bums. 304 Masterson Ave.. Sllnneapolis, Minn. OV Damon N. Vsght. .1504 Freedom St.. Huntington. Intl. Ft. Wayne, 1147 S. Grove Ave.. Ind. 9 ACH Ralph Leach 3912 131h St.. Des Moines. Iowa PO Frank M. Kratochvll, 9 UXR Jantes M. Milne, 417 Fifth Ave.. Brookings, Ave.. Oak Park. Ill. S. Dak. 9 ATO Edwin A. Cary. 594% Delaware U DIA Paul B. Ward, Milwaukee, Wise. PH Glenn D. Johnson Pleasantville, Iowa 710 W, Prospect St.. Kewanee, III. 9 DYB Ross T. 9 AYE Merlon C. Harris Box 381. Vlllisca, Iowa PN Alvin Leeman Unadllla, Nebr. Hatton, 4926 Military Ave., Omaha, Nebr. 9 DBE Jacob G. Barden N West St., Greenwood, Ind. PP Frank P. Bailey. R. It. O. Box 171. 9 DIU Galled.), La Motte. 318 E. Seventh St., 9 BICS George J. Cheeky. 2426 Trumbull Ave. Chicago. Ill. Indianapolis. Ind. Hopklsvllle, Ky. 9 BKV Alfred W. Kruse R. F. D. No. 6. Akron. Ohio QD Lawrence and Raymond Prezak, 2504 S. 61st Ave.. Oak Park, Ill. 9 BRL Paul W. Andrew Coburg. Iowa Cicero. Ill. 9 D'LF Robert F. Blaine, 415 N. Oak Park Ave.. 9 BWC Francia E. Nelson. 1431 East 2d Ave FI Real C. Chouinard. 1412 8. Second Ave,. Maywood, Ill. 9 DEL Donald C. Leary Ravenswood, FJ Charles Sheridan Rd., Chicago. Mo. Cedar Rapids. Iowa F. Grover..4030 Ill. 9 DEW John 1'. Matthews, 620 E. St., St., Iowa FL Henry Hanses....14 E. 661)1 St.. Kansas City. Mo. Fifth No., 9 CHO John A. Davies. 517 Ottumwa Ottumwa. Newton, Iowa 9 222 St., Seymour. Ind. HT Clifford J. Reed..11931 Eggleston Ave.. Chicago. Ill, Cle Clifton M. Fischbach.. Poplar 9 DEZ Thomas A. Buena..5343 Winthrop 9 CMX Robert N. Parsons, R. F. D.. No. 5, Anela, N. Dak. OL Chester L. Davis, P. O. Box 515. Ave.. Chicago. Ill. 0 EFY Claiborne 9 DBB Ernest J. Stringos 631 E. 63d St., Chicago. Ill. Ft. Leavenworth. Kana. C. Van Zendt..2021 Albion St., 9 DLT Malcolm B. Macero..1331 S. 22d St.. St. Joseph, Mo. Milton R. Johnson,.7816 Carpenter St.. Chicago, Ill. Denver. Colo. 9 DLV Henry Konwlnskl. 407 Seventh Ave., Milwaukee, Wisc. Á Ii9fU AlLert C. Wachs 109 E. Tenth St.. Paris. Ky. 9 EJC T. Luther Morris, 217 W. Eighth St., 9 DWX William F. Marquardt, 2624 Potwyne P1.. ADV William P. Lear 500 Slalrte St.. Quincy, III, Mllodgan City, Ind. Chicago. Ill. AFF William W. Bingham, 1913 W. Madison St.. 9 XBI' University of South Dakota Vermillion, 8. Dak. Chicago. 9 ELC Harold E. Stepp, 402 S. Hemline St.. St. Paul. Minn. Ill. 9 XHU University of Missouri, 604 S. Ninth St., 9 EMB Joseph llampel 2238 Alberta St.. St. Louis, Mo. AGD Robert D. Linz..835 Hackett Ave., Milwaukee, Wise. P. Boa 202, Wakefield. Columbia, Mo. 9 SS Earl B. MarIowell 3145 Karnes Blvd- AHI Albert W. Johnson.. U. Nebr. 9 C(4 Charles K. Davis Kansas City. Mo. AHS Austin High Bdtool (Board of Education). City 615 Ohlon St., Hickman. Ky. 9 HM Robert J. Tyrrell. 1807 9 TB Ludwig D. Dlnndort, 712 Metzroth Place. of Chicago, 5417 Fulton St., Chicago. Ill. Selby Ave.. St. Paul, Minn. St. Cloud. Minn. AIQ Joseph E. Decker..134 18th St., Milwaukee, Wise. 9 HO Loy S. Hlllegs- Baird, 712 Prairie Ave.. 9 BDR Harold M. Parte, 1124 R. 21st St.. Ft. Dodge, Iowa AKK Edward Jullus..1015 N. Sixth Ave., Ft. Dodge, Iowa Kenosha, Wisc. 9 BJF Henry D. Tyasen 443 W. 103d St.. Chicago, Ill. AKN Howard L. Swanson, 1161 S, 14th Ave., 9 OH Lee Dleseleke 2124 S. Third Ave., Maywood, Ill. 9 RNA Harvey H. Domla 1017 Pleasant Pl., Oak Park, Ill. Minneapolis. Minn. 9 RR LasseUln B. Lalzure, 8020 Mercier St., 9 BZB Merrill W. Price, Route II. Box 364 -H. AKW Clinton R. White. 650 Wageland Ave.. Chicago. Ill. Kansas City. Mo. Indianapolis, Ind. AKZ Laura H. Mlelke, 410 E. Summit St., 9 8I Layton Slebothem, 4284 Ferlin Ave., St. Louis, Mo. 9 CFY Clarence O. Ford, 609 S. Hancock Sleepy Eye. Minn. ado Springs, Colo. APA Kenneth W. Rowe. 4532 S. Dupont Ave.. 9 AUX Hermon F. Hediger, Route No. 3, County Rd., P CJZ Wilfred M. Pearson, 327 -329 Main St., Minneapolis, Minn. White Bear, Minn. Slt. Vernon, Ind. A9114 Harold F. Warta, 1416 N. 16th St.. St, Joseph. Mo. 9 CHW Everett M. Strout, 257 Crozet St.. La Salle. IU. 9 COA Fred C. Booty. 4727 W. Adams St.. Chicago, Ill. AVL William A. Hale 504 Sanford St.. Peoria. Ill. 9 CTT Willard A. Hayward, 6704 S. Union Ave.. Chicago. Ill. 9 CWV Verner Hicks Erie St, Spring Valley. Ill, AYK Ethelbert Crockett, Jr...P. O. Box 164. Weston, Mo. 9 DES Menlo E. Hazeltine. 1078 21st Ase., S. E.. 9 DB Jams T. Oregerson, Jr.. 306 500 Ave.. BDI John It, Wald..1087 Fairmont Ave.. St. Paul. Minn. Minneapolis. Minn. ' BTN Herman A. S. St., Terre llls. Wisc. Dloench..43 15th Haute. Ind. 9 DIO Oliver C. Kuehnel, 2810 North Ave., Milwaukee. Wisc. 9 DFC H. Leslie 7421 Sheridan Rd.. Chicago. Ill. BVH Leo J. Arthurs....121 W. 24th St., Kearney, Nebr. Atlsa 9 DJE Charles A. Sodergren, 9 DMT Sfarzo A. Kennedy State Highway 8, Macon. Mo. Archie P. Fenner....1329 "N" St., Lincoln, Nebr. 6134 S. Halsted SL 9 DNZ Eugene Frltschel 145 Hyland Ave., Ames, Iowa BX1d Nell D. Cole....Hastinga College. Hastings, Nebr. Chicago, Ill. 9 DOE Alfred Bergtold...2107 E. Fourth St., Duluth. Minn. RYM Phi PI Phi Fraternity. 2122 Sherman Ave., 9 AS Fred L. Damarin..8. Summit Ave.. Villa Park. IU. 9 DPM Chas. S. Hotchkiss Stratford Ave., Elmhurst, Ill. Evanston. Ill. 9 EF Minnesota Wireless Asso, (not Minneapolis Wire- 9 DRH Frank R. Brown, 132 N. State St.. Waupaca. Wisc. BYN Clifford Van Routen. 1904 B. 24th St.. St. Joseph, Mo. less), 40.2 Court House. Minneapolis. Minn. 9 DER Albert L. Striegel 714 Jessie St. Joliet. Ill. BYW Murrell B. Moore. H. F. D. Bellevelle, Ill., 9 HW Clarence F. Bates. 1019 Bartlett Ave., 9 FG Lawrence D. Dillard. 4167 McPherson Ave.. Scott Field, Ill, Milwaukee, Wise. St. Mo. Louis, BZV Dunham J. Gilbert. Pillsbury Academy. 9 JX Harry E. Adams Avala. Ind. 9 ABC) James C. Fear. 229 Niagara St.. Eau Claire. Wise. Owatonna, Mina 9 WZ Ralph Heiberg. 1700 Third Ave., N.. 9 3051 Wilson Chicago. Ill. BZW Walter J. C. Kirkpatrick, 1723 Estes Ave.. ADA Lester Marhota Ave., Minneapolis. Minn. 9 AKI Chas. A. and Earl L. Freese. 919 Milan Ave. Chicago, Hl. Ravenna. Nebr. BZX William Dlttenhoter, 807 Summit Ave.. St. Paul, Minn. 9 APK Harry B. Smith. 2304 Park Place, Evanston. Ill. 9 BHA Clarence R. Armour, 401 S. Lowman St.. BEY Glenn Key. Box 96. Rockton Rd., So. Beloit, Ill. 9 AXJ David H. Freeman..2719 SheReld Ave Chicago, Ill. Ft. Scott. Kans. CCQ Roland C. Beardsley. 712 Prairie Ave.. 9 BAY Roy N. McCord, 1249 Roland St., St. Paul, Minn. o AFM Gordon L. Davy 12 Tenth St.. Minot, N. Dak. Kenosha, Wisc. 9 BCT Clifford J. Krlel, 285 N. Tremont St.. 9 PQ langfad T. Bourland. 908 W. Grove St.. Pontiac. Ill. DCN Raymond P. Martens, 3303 S. Claremont Ave., Indianapolis. Ind. 9 TO Lynn H. Matthias, 717 Seventh Ave.. AntIco. Wise. Chicago. Ill. Smith...305 9. Garth Ave., Columbia, Mo. DDY Leslie Carlson....3835 Osgood St.. 9 BJB Donald H. Cameron, 1311 Georgia Ave 9 RT Jame G. II. Chicago, Ill. Kansas City. Kano. 9 VD Clarence N. Crapo. 443 Newton Ave.. Shorewood. Wisc, DOP Robert J. Callen. 302 Morrison St., Collinsville, Ill. 9 CJO Franklin M. Henry. 501 N. Cedar St.. DOU Marlon F. Brown. 1107 W. Sycamore St.', 9 BYI Orland B, Banning. 213 Water St., Elkhart, Ind. Colorado Spring. Colo. Independence. Kane. 9 DAL Stewart Lyon..R. F. D. No. 6, Arkansas City, Kas. 1014 State St.. Osage. Iowa 404 N. 9 DAS Laurence C. Turner DHO Homer M. Barnes, Lombard Ave., 9 DFP Charles A. Rohner..209 B. Albany Ave., Chicago, Ill. 9 DMX SDalshury, 721 Mis. St.. Lawrence. Kars. Oak Park, Ill. ('lark 9 EFY Claiborne C. Van Zandt. 2021 Albion 8t., 9 DNO Fergus McKeever, DMO Ralph C. Herring Fort Benjamin Harrison, Ind. Denver, University Heights. Lawrence, Kas. DPH Ansel A. Searles-3855 Franklin St,. Omaha. Nebr. Colo. 9 DOF Harold E. Rittenhouse, 631 W. Grove St., Pontiac. Ill. DEZ Floyd B. Barrett 1002 Moffett St.. Joplin, Mo. 9 ELU Allen Wooldridge Oak St,. Osage. Iowa

www.americanradiohistory.com BROADCASTING STATION DIRECTORY KDKA Elec. & KF00 Latter WAAC Thane University New Orleans. La. 360 Weslln[hnuae idigEast Pittsburgh, Pa. Day Saints University. 309 Salt Lake City. Utah 242 WAAD Ohio Mechanics Institute Cincinnati. Ohio 258 Devils Lake, N. K FOR Ill. 286 KDLR Co Dak. 231 David City Tire & Electric Co.. David City, Neb. 226 WAAF Chicago Daily Drover's Journal...Chicago. Radio Elec. Co Newark. N. J. 263 & Mfg. Co., Cleveland. O. 250 KFOT College Hill Radio Club Wichita, Kan. 231 WAAM I. R. Nelson I( Opal Westinghouse Electric KFOU Hommel Cal. 254 WAAN University of Missouri Columbia. Mo. 254 San Manufacturing Co Richmond, KDPT Southern Electrical Co Diego, Cal. 245 (FOX Technical High School Omaha. Neb. 248 WAAW Omaha Grain Exchange Omaha. Neb. 278 Lake KFOY 252 WABA Lake Formt university Lake Forant, III. 227 K DYL Newhouse Hotel Salt City. Utah 250 Beacon Radio Service St. Paul. Minn. KFPG Garretson Los Angeles. Cal. 238 WABB Harrisburg Sporting Goods Co , Harrisburg. Pa. 266 Theatre Sin Diego, Cal. 280 & Dennis K D v31 Savoy KFPH Howard C. Mallandor, 992 Lake St.. WASH Lake Shore Tire Co Sandusky. Ohio 244 KDZB Frank E. Seifert Bakersfield. Cal. 209 LakDublin. 242 WABI (Bangor hallway & Electric Co , Bangor. Me. 240 C. Silt 242 WABL Cotmeallcut Agricultural College...Storrs. Conn. 283 K DZE Rhodes Department Store Seattle. Wash. 270 KFPL C. Baxter. 205 Grafton Tex. KFPM Greenville, Texas 242 WABM F. E. Doherty Automotive & Radio Equipment Salt Lake New Furniture Co KEPT Copo & Johnson City, Utah 268 KFPN Missouri National Guard. 70th Infantry Brigade. Co., Saginaw, Stich. 206 KFAB Nebraska Buick Auto Co Lincoln, Nebr. 248 Jefferson City. Mo. 242 WABN Ott Radio, Inc., 1627 State St., La Crosse. Wis. 244 Department. Rochester, N. Y. 277 K FAD McArthur Bros. Mercantile Co.. Phoenix. Ariz 272 KFPR Los Angeles County Forestry WABO Hickson Electric to Los Angeles. Cal. 236 WABQ Haverford College Radio Club... Haverford, Pa. 261 KFAE State College of Waahangton....Pullman, Wash. 330 KFPV Heintz & Kohlmoos San Francisco, Cal. 236 WABR Siett high School Toledo, Ohio 263 KFAF Western Radio Corporation Denver, Colo. 278 KFPW St. John's Church Carterville. Mo. 268 WABU Victor Talking Machine Co Camden. N. J. 226 Presbyterian Church Pine Bluff, Ark. 242 WABW College of Wooster Wooster, Ohio 207 K FAJ University of Colorado Boulder. KFPX First Colo. 360 KFPY Symons Investment Co Spokane, Wash. 283 WABX Henry B. Joy Mount Clemens. Mich. 245 KFAN The Electric Shop Moscow, Idaho 360 KFQA The Principle. 5539 Page Ave , St. Louis. Mo. 261 WABY John Magahli, Jr., 815 Kimball St., Phila.. Pa. 242 La. 263 K F A U Independent School District Boise KFQB Searchlight Publishing Co., Fort Worth. Texas 254 WABZ Coliseum Place Baptist Church. Nov Orleans, of City. Ohio 258 Boise High School. Besse. Idaho 500 KFQC Kidd Brothers Radio Shop Taft. Cal. 232 W ADC Allen T. Simmons Akron, KFQG Southern California Radio Association, Armory WAHO A. 1i. Crabe Co Brooklyn. N. Y. 316 KFAW The Radio Den Santa Ana. Cal. 280 Exposition Park, Los Angeles, Cal. 228 WAIT A. H. Waite Co., 32 Weir St-Taunton, Mass. 229 KFCC First Congregational Church Helena, Mont. 248 KFQH Albert Sherman, Hlllabourgh Box 51. WBAA Purdue University West Lafayette. Ind. 283 Burlingame, Cal. 220 WBAN Wireless )'lone Corporation Paterson, N. J. 244 KFBB F. A. Butlrey Si Co Havre. Mont. 360 KFQI Thomas II. Ince Corp Culver City. Cal. 234 WBAO James Mllliklu University Decatur. Ill. 275 KFBC W. K. Azblll San Diego. Cal. 223 KFQJ Harbour- Lonemlre Co Oklahoma City. Okla. 236 WBAP Wortham- Cotter Publishing Co. (Star- Telegram). KFBE Horn & Wilson's San Luis Obispo. Cal. 215 KFQK Democrat Leader Fayette. Mo. 236 Fort Worth,. Texas 476 (FEIN Texas Highway Bulletin Austin, Texas 268 WBAV Erner & Hopkins Co Columbus, Ohio 294 KFBG First Presbyterian Church Tacoma, Wash. 360 KFQN Third Baptist Church Portland. Ore. 283 WBAX John II. Stenger, Jr.. 66 Gildersleeve St., K F B K Kimball -Upson Co Sacramento, Cal. 283 KFQR Walter I. Ellis. 625 East 6th St.. Wllkesbarre, Pa. 256 Oklahoma CRY. OMs. 250 Plymouth Congregational Church. Newark. Ohio 225 KFBL Leese .Oros. Everett. Wash. 224 WBBA KFQT Texas National Guard. Thirty-sixth Signal Co.. WBBG Irving Vermllya \laltapolull, Mass. 248 KFBU The Cathedral Laramie. Wyo. 270 Denison. Texas 252 WBBH J. Irving licit, 1511 Gordon SI K FCB Nielsen Radio Supply Co Phoenix, Ariz. 238 KFQU W. Riker Holy City, Cal. 222 Port Huron, Mich. 205 K FCF Frank A. Moore Walla Walla. Wash. 256 KFQW C. F. Knierdm Photo. Radio & Electric Shop, WBBL Grace Covenant Church Richmond. Va. 283 K F CL Leslie E. Itice. Los Angeles Union Stock Yards, North Bene, Wash. 248 WBBM 11. Leslie Atlas. 7421 Sheridan )load. Los Angeles. Cal. 236 (FOX Alfred M. Hubbard. 310 Green Bldg.. Chicago. Ill. 226 K FCP Ralph W. Flygare Ogden, Utah 208 Seattle. Wash. 233 WBBP Petoskey High School Petoskey. Mich. 214 KFCY Western Union College Le Mars, Iowa 252 KFQY Farmers State Rank Belden, Neb. 273 WBBR Peoples Pulpit Association iteatsvllle. N. Y. 273 KFCZ Omaha Central High School Omaha. Neb. 258 KFQZ Taft Radio Co.. 5653 De Longpre Ave., WBBS First Baptist Church New Orleans. La. 252 KFDD St. Michael's Cathedral Boise, Idaho 252 Hollywood. Cal. 239 WBBU Jenks Motor Sales Co Mo h, Ill. 224 KFDH University of Arizona Tucson, Adz. 258 KFRB Hall Brothers Beeville. Texas 248 WBBV Johnstown Radio Co Johnstown, Po. 248 KFDI Oregon Agricultural College Corvallis. Ore. 360 KFRC Radioart Studio San Francisco. Cal. 270 WBBW Ruffner Junior High School Norfolk, Va. 222 KFDM Magnolia Petroleum Co Beaumont. Texas 306 KFRF W. R. Brown Alexandria. La. 242 WBBY Washington Light Infantry. Charleston, S. C. 268 (FOX First Baptist Church Shreveport. La. 360 KFRH The Radio Shop Grafton. N. D. 268 WBBZ Nolde It. Watson, 233 Iowa St., KFDY South Dakota Stale College Brookins, S. 1). 360 KFRJ Guy Simmons. Jr.. 515 Clifton St.. Conway, Ark. 250 Indianapolis. Ind. 227 KFOZ Harry O. Iverson Minneapolis, Minn. 231 KFRL Men's Club of First Presbyterian Church, WBCN Southlnvvn Economist Station Chicago, III. 268 KFEC Meier & Frank Co Portland. Ore. 248 Grand Forks, N. Dak. 240 WBDC The Baxter La try Co.. 747 Fountain KFEL Winner Radio Corp Denver, Colo. 254 KFRM Lleut. Jantes P. Boland, U. S. A.. St.. N. E.. Grand Rapids. Mich. 256 KFEQ Scroggln & Co Bank. Oak. Neb. 268 Fort Sill. Okla. 263 WBES Bliss Flee. Co Takma Park, Md. 222 Iowa 231 KFER Auto Electric Service Co Fort Dodge. KFRN M. Laurence Short Hanford, Cal. 224 WBRE Baltimore Radio Exchange . .Wilkesbarre, Pa. 231 KFEX Augsburg Seminary Minneapolis. Minn. 261 KFRO Curtis Printing Co., 1109 8th Ave., WBS D. W. May Ilnc.) Newark. N. J. 252 KFEY hunker 11111 & Sullivan Mining and Fort Worth, Tesas 246 WBT Southern Radio Corp Charlotte. N. C. 360 360 Concentrating Co.. Kellogg, Idaho Redlands, Cal. 206 WBZ Westinghouse Elec. & Mfg. Co., Baise. Idaho 240 KFRP Trinity Church KFFB Jenkins Furniture Co KFRQ Radio Market Service Co Portland, Ore. 213 Springfield. Mass. 337 KFFE Eastern Oregon Radio Co Pendleton, Ore. 360 WCAO SI. Lawrence University Canton. N. Y. 263 266 KFRU Bristow. Oaklahoma (Etherlcal Studios) 394 KFFP First Baptist Church Moberly, Mo. Wash. 220 WCAE Kaufman & Baer Co Pittsburgh, l'a. 462 Sparks. Nev. 226 KFRW United Churches of Olympia Olympia. KFFR Nevada State Journal KFRX J. Gordon Kletnguard Pullman. Wash. WCAG ('ide It. Randall. 2813 Calhoun St.. KFFV Graecland College Lamont, Iowa 250 of & New Orleans, Ta. 268 Rouge. La. 275 KFRY New Mexico College Agriculture KFFY Louisiana College for Women.. Baton Mechanic Ara. State College of N. M. 266 WCAH Entrekin Electric Co Cnluutbua. Ohio 265 KFGC Louisiana Rouge. La. 268 Sate University....Batan The Electric Shop Harrington. Neb. WCA1 Nebraska Wesleyan University, KFGD Oklahoma College for Women..Chickasha. Okla. 252 KFRZ University Place. Neb. 280 Stanford Univ., Cal. 270 (FOG Echo )'ark Evangelistic Association. KFGH Leland Stanford University, Las Angeles. Cal. 277 WCAL SI. Olaf Collage Northfield. Minn. 360 Hardware Co Boone. Iowa 226 Co 275 KFGQ ('cary Co.. 20 So. Main St.. WCAO The Sanders and Stamens) Haiti . Md. Presbyterian Church Orange. Texas 250 KFSY Van Blarlerom Co.. KFQX First ltelena, Mont. 261 WCAP Chesapeake & Potomac Teheld KFHA Western State College of Colorado. Washington. D. C. 469 Gunnison, Colo. 252 (FUN W. D. Corley. 114 W. Del Norte St.. Colorado Springs, CoL WCAR Southern Radio Corp. of Texas, KFH1 State Teachers College Warrensburg. Mo. 234 San Antonio, Tetas 263 Penn College Oskaloosa, Iowa 240 KFUJ Hopper Plumbing & Heating Co., KFHL Breckenridge. Minn. 242 WCAT South Dakota State School of Mines, K F H R Star Electric & Radio Co Seattle, Wash. 283 City. S. 240 Goggen Galveston. Texas 258 Rapid D. Earle C. Anthony. Inc Los Angeles, Cal. 469 KFUL Thomas & Bros 278 KFI 549 WCAU Durham & Co Philadelphia, Pa. Benson Polytechnic Inatitute....l'ortland, Ore. 248 KFUO Concordia Seminary St. Louie, Sin. Itouk, 360 KFIF Colo. 234 WCAV .1. C Dice Electric Co Little Ark. KF10 North Central High School Spokane, Wash. 252 KFUP Fitzsimmons General Hospital -Denver. WCAX University of Vermont Burlington, Vt. 360 First Methodist Church Yakima, Wash. 242 KFUR Perry & Redfield Ogden. Utah 223 Civic KFIQ L. L. Sherman Oakland. Cal. 234 WCAY Milwaukee Broadcasting Slnllott, KFIU Alaska Klee. Light & Power Co., Juneau. Alaska 226 KFUS & Church Hotel Antlers. Milwaukee, Wis. 266 KFIZ Daily Commonwealth and Oscar A. 'Weisman, KFUT University of Utah Salt Lake City. Utah 260 KFUQ Julius Branton Sons San Francisco, Cal. 236 WCAZ Carthage College Carthage. III. 246 Fond du Lae. Wis. 273 WCBA Charles W. llelupbach, Electric Marshalltown, Iowa 248 KFUU Colburn Radio Laboratories..San Leandro. Cal. 224 KFJB Marshall Co Mo. 252 1015 Allen St.. Allentown, Pa. 280 Radio Mlfg. City, Okla. 261 KFUV G. Pearson Wand Springfield. KFJF National Co...Oklahoma KFUY Irvine H. Bouchard Butte, Mont. 254 WCBC University of Michigan Ann Arbor. Mich. 229 KFDI Liberty Theatre Astoria, Ore. 252 KFUW Carl W. Lewis Moberly. Mo. 233 WCBD Wilbur G. Votive Zion, Ill. 359 KFDM University of North Dakota. Grand Forks. N. D. 280 KFVH When Radio Shop Manhattan. Kansas 218 WCBE T'hall Radio Co New Orleans, La. 263 KFJR Ashley C. Dixon & Son Stevensville, Mont. 258 KFWA Browning Ilros. Co. Ogden, Utah 214 WCBG Howard S. Williams Pascagoula. Mass. 268 KF1X Iowa State Teachers College-Cedar Falls. Iowa 280 KGB Tacoma Dally Ledger Tacoma. Wash. 252 WCB H University of MBssisslppi Oxford, Niles. 242 KFDY Tumuli Radio Co Fort Dodge. Iowa 246 K00 General Electric Co Oakland. Cal. 312 WCBI Nicoll. Duncan & Rush Bemis. Tenn. 240 KFJZ Texas National Guard. 112th Cavalry, KOU Marlon A. Mulrony Honolulu, Hawaii 360 WCBJ 3. C. Mans Jennings, L. 244 Fort Worth. Texas 254 KGW Portland Morning Oregonian Portland. Ore. 492 WCBL Northern Radio Mfg. Co Moulton, Ste. 280 KFKA Colorado Slate Teachers College...Greeley. Colo. 273 KGY St. Sfartln's College Lacey. Wash. 258 WCBM Charles Schwarz. Charles and North Avca.. KFKB Brinkley -Jones Hospital Assoclatien, Kill Times Mirror Co Loa Angeles. Cal. 395 Baltimore. III. 229 Milford. Kan. 286 KHQ Louis Weimer Seattle. Wash. 360 WC(3O Radio Shop line.) Memphis. Tenn. 250 KFKQ Conway Radio Laboratories Conway, Ark. 250 (JR Northwest Radio Service Seattle. Wash. 283 WCBQ First Baptist Church Nastwllle. Tenn. 236 KFKU University of Kansas Lawrence, Kan. K18 Bible Institute of Los Angeles. Los Angeles l'ai. 293 WCBR Charles It. Messter Providence. It. I. 249 KFKV F. F. Gray. 3200 Richardson St., Butte. Mont. 283 KLDS Reorganized Church of Jesus Christ of Latter WCBT Clark University Worcester. Mass. 23a KFKX Westinghouse Electric & Mfg. Co.. Days Saints 268 WCBU Arnold Wireless Supply Co \mold. l'a. 220 Hastings. Neb. 341 KJQ C. O. Gould alockton, Cal. 273 WCBV Tullahoma Radio Club Tmlahmua. Tenn. 252 KFKZ Nassour Btos. Radio Co..Colorado Springs. Colo. 234 KLS Warner Bros. Radio Supplies Co Oakland. Cal. 241 WCBW George P. Rankin. Jr.. and Maitland Sol KFLA Abner R. Willson, 1321 W. Itlatinum SI.. KLX Tribune Publishing Co Oakland. Cal. Moron. Ga. 225 Butte. Mont. 283 KLZ Reynolds Radio Co Denver. Colo. 2833 WCBY Forks Electrical Shop Buck 11111 Falls, Pe. 230 KFLB Signal Electric Mfg. Co Menominee, Mich. 248 KMJ San Joaquin Lt. & Power Corp Fresno, l'al . 234 WCBZ Coppotelli Brothers Music House. KFLE National Educational Service Denver, Colo. 268 10)10 Love Electric Co Tacoma. Wash. 360 Chicago Heights. in 248 KFLP Everette M. Foster. 1242 South Sixth St., KNT Walter Heinrich Kukak Bey, Alaska 263 WCCO Washburn Crosby Co.. 200 Chamber of l'o ecce. Cedar Rapids. Iowa 256 KNX 'Hollywood" Los Angeles Evening Express.... 337 Minneapolis, Minn. 417 KFLR University of New Mexico...Albuquerque, N. M. 254 KOA Rocky Sits. Broadcasting Station, WCEE Charles E. Erbetrin, R. F. D. 6, K FLU Rio Grande Radio Supply House, General Elec. Co.. Denver, Colo. 323 Box 75, (Near) Elgin, III. 275 San Benito, Texas 236 KOB New Stexlen College of Agriculture and WCK Stiz Baer & Fuller Dry Goods K F L V Swedish Evangelical Mission Church. Mechanic Arts, State College. N. M. 360 fo. L'ule. Mn. 360 Rockford, Ill. 229 KOP Detroit Pollee Dept Detroit. Mich. 277 WCM Texas Markets & Warehouse Department. KFLX George R. Clough. 1214 40th St., Galveston, Tex. 240 KPO Hale Bros San Francisco, Cal. 423 Austin. Texas 268 KFLI Atlantic Automobile Co Atlantic, Iowa 271 KPPC First Presbyterian Church Pasadena. Cal. 228 WCTS C. T. Sherry Co Worcester. Llass. 268 K FMB Christian Churches of Little Rock. KOV Doubleday Hill Electric Co Pittsburgh, Pa. 275 WCUW Clark University Worcester, Mass. 235 Little Rock. Ark. 254 KQW Chu. D. Herrold. 407 First St , San .Joie. Cal. 239 WCX The Detroit Free Press Detroit. Mich. 517 KFMQ University of Arkansas Fayetteville, Ark. 248 K RE Berkeley Dally Gazette Berkeley, Cal. 258 WDAE Tampa Dally Times Tampa. Fla. 360 K F M R Momingside College Sioux City. Iowa 261 KSAC Manhattan Kans. 340 WDAF Kansas City Star Kansas City. Mn. 411 KFMT George W. Young. 2219 W. Bryant Ave., KSD Post Dispatch (Pulitzer Pub. Co.). St. Louis. Mo. 546 WDAG J. Laurence Martin 4marilln, Tex. 263 Minneapolis, Minn. 231 KSL The Radio Service Corp. of Utah. WDAH Trinity Methodist Church (South) El Paso. Tex. 268 K F M W M. G. Sateren, 127 Blanche SI.. Renato!). Mich. 266 Sait Laye City, Utnh 299 WDAY Radio Equipment Corp Fargo. N. D. 244 KFM X Carleton College Northfield, Minn. 283 KTHS Hot Springs. Ark. 374 WDBC Kirk Johnson & Co Lancaster. Pa. 259 K F N F Henry Field Seed Co Shenandoah. Iowa 266 KTW First Presbyterian Church Oeattle, Wash. 451 WDBO Herman E. Burns Martinsburg. W. Va. 251 KFNG Wooten's Radio Shop Coldwater. Miss. 254 KUO Examiner Printing Co San Francisco, Cal. 245 WDBE Gilliam Schoen Elec. Co., 22 Luckie St.. KFN1 Central Mo. State Teachers College, K U0 State University of Mfontana. . . . Missoula. Mont. 244 Atlanta. Ga. 278 Warrensburg, Mo. 234 KWG Portable Wireless Telephone Co.. Stockton. Cal. 247 WDBF Robert G. Phillips Youngstown. Ohlo..222 KFNL Radio Broadcast Asenctatinn.. Peso Robles. Cal. 212 K W H Los Angeles Examiner Los Angeles. Cal. 360 WDBI Radio Specialty Co St. Petersburg. Fla. 228 KFNV L. A. Drake, 505 Third St Santa Rosa, Cal.. 228 KYQ Electric Shop Honolulu. Hawaii 270 WDBJ Richardson-Wayland Electrical Corp.. KFNY Mentana Phonograph Co Helena. Mont. 248 KYW Westinghouse Klee. & Mfg. Co.. Chicago. III. 536 Roanoke. Va. 229 KFNI Royal Radio Co Burlingame. Cal. 227 KZKZ Electrical Supply Co. 109 Plaza Manes. WOBO Rollins College Winter Park. Fla. 240 KFOA Rhodes Dept. Store Seattle. Wash. 455 Manila. P. I. 270 WDBP Superior Stale Normal School.. ..Superior. WIs. 261 KFOC First Christian Church Whittler, Cal. 230 KIM Preston T). Allen. 13th & Franklin St... WDBQ Morton Radio Supply Co Salem, N. J. 234 KFOD Tho Radio Shop Wallace, Idaho 224 Oakland, Cal. 241 WDBR Tremont Temple Baptist Church ltoston, Stass. 261 KF01 Moberly High School Radio Cluh..Moberly, Me. 246 KZRQ Far Eastern Radio Co.. Manila Hotel. WDBS S. M. K. Radio Corp Dayton, Ohio 275 KFOL T.osile M. Schafbuch, 502 W. Marion St., Manila. P. I. 222 WDBT Taylor's Book Store Hattiesburg. M11ss. 238 Marengo. Iowa 234 Valdemar Jensen. 137 S. St. Patrick Bt., WDBV Strand Theatre Fort Wayne, Ind. 258 Echophone WAAB K FON Itadlo Sh yip Lang Beach, Cal. 230 New Orleans, La. 268 WDBW The Radio Den Columbia, Tenn. 266 79

www.americanradiohistory.com WIRELESS AGE - THE RADIO MAGAZINE MAY, 1925 WDBX Otto Baur, 138 Dycktuan St., New York. I N. Y. 233 W L Benson Radio Co St. Louis, Mo. 273 WSY WOBY North Shure Collett:oat cal Church. Chicago. III. 258 WIP Gimbel ,.wohea Alabama Power Co Birmingham, AA. 360 W0BZ Buy Scouts m Atitmice, Pieladclpu,a, l'a. 509 W TAB Foil (titer Lally Inlaid Pub. Co., Ulster County Council, WMAD Jackson's Itau.0 kagruerlWg Laboratte lea. Kingston, N. Y. Fall hier, Mau. 266 233 Waco, Texas 353 WTAC Penn. N'DM The Church of the Covenant, Washington, D. C. 234 WJAG The Norfolk Traffic Co Johnstown, Pa. 209 Daily News Nodule, Neb. 270 WTAF Louis Gallo, 2222 W u W F Duke VS'ieox Flint Cranston, It. 1. 500 WMAK Clifford L. White J. Lap;yrouee St.. W DZ J. L. Buse Greentown, Ind. 254 New Orleans, Tuscola, Iu. 275 W1 AM L. M. Perham, ....2 Third Ave La. 268 WEAA Frank D. Falali. Polee WTAL Toledo Radio & Elec. Co Building -Filet, Mich. 234 W. Cedar Rapids, Iowa 268 Toledo, Ohio 252 W EAF American Telephone & Telegraph Co., WJAN Peoria WTAM Willard Storage 'Satiety Co Cleveland, Ohio 389 Star Peoria, ill. 273 W New fork, N. Y. 492 WJAR The TAP Cambridge Radio & Llc_. Let Cambridge, 111. 242 Outlet Co Providence, It. I. 360 WTAQ W EA 11 Wichita Board of Trade Wichita, Kan. 268 WJAS Pittsburgh Radio Supply S. H. Var, Gorden & Suu Osseo, Wis. 254 Co Pittsburgh, Pa. 275 W TAR Reliance Elee. WEAI Cornell University Ithaca, N. Y. 254 WJAZ Zenith Radio Corporation, 332 So. Michigan to Norfolk, Va. 280 WEAI University of WTAS Cherits E. Erbsisiu, It. South Uaaota.... V'ermllllou, S. L. 278 Ave., Chicago, IIL 268 F. D. 6, Box 75, W EAM Borough of North Plainfield, WJD Richard Howe Granville. Elgin, Ill. 286 Ohio 217 WTAT Edison North Plainfield. N. J. 261 W11 D Slooseheal Mooscheott. Ill. 278 Electric Illuminating Co., Boston. Mus. 244 W EAN Shepard Co Providence. lt. I. 273 WJY It C. A. New York W TAU Rugg Ilettery and Electric Cu.. Tecumseh, Neb. 242 City 405 W TAW WEAO The Ohio State University Columbus. Ohio 360 WJZ R. C. A. New York City 455 Aglicullural & Mcchaulcal l allege, W EAP Mobile Radio Co Mobile. Ala. 360 WKAA B. F. Parer. College Station, Texas 280 1444 Second Ave. E., WTAX Williams W EAR Goodyear Tire & Rubber Co Cleveland, Oulu 384 Cedar Rapids. Iowa 278 Hardware Co Streator. Ill. 231 W EAU Davidson Bros. Company vMu: City, Iowa 275 W KAD Charles Loor (Crescent Park), WTAY Oak Leaves Broadcasting Station, Oak Park, 111. 250 W EAY Iris Theatre Houston. Texas 360 East WTAZ Thomas J. McGuire Lambertville, N. J. 261 Providence, It. I. 240 WTG limiters State WEBA The Electric Shop Highland Pork. N. J. 233 W KAP Dulee W. Flint Cranston, lt. I. 360 Agricultural College, WEBC Waller C. Bridges Superior. SVis. 242 WKAQ Itadlo Corp. of Porto Rico San Juan, P. It. 340 Manhattan, Kan. 273 WEBD ElectrMal Equipment Su -dce Co.. Anderson. Ind. 246 WKAR Mh,hrgat Agriculture College, WTHS Flint Senior High School. W EBE Itoy W. N'aller Cambridge. Ohio 234 East Cr080 St.. Flint, Stich. 218 Lansing, Miah. 280 WT1C The W E B H Edgewater Beach Hotel Co t hicago, Ili. 370 WK AV Laconia Radio Club Laronta, N. 254 Travelers Insurance Cu..,. Hart.ord, Coon. 348 H. W WEB1 Tiled Ate. Icy. l'o New York City 273 W KBE K. & B. Electric Co Webster. Mass. 231 WAD Wright & Wright, Mc Philadelphia, Pa. 360 W WAE WEBK Grad Rapids Radio Co...Grand Rapids. Mich. 242 W K Y W. K. Y. ltedlo Shop ....Oklahoma City, Okla. 360 Laurence J. Crowley (Alamo Ball Room), WEBL It. C. A. Coped States (portable) 226 W LAP W. V. Jordan, 306 W. Breckenridge St.. Joliet, ill. 242 WEBA Tate Radio Co Ilarrisbmg, 111. 226 Louisville. Ky. 286 WWAO Michigan College of Mines Houghton. Sikh. 244 WEBS 11. II. Howell Buffalo. N. Y. 244 WLAX Greencastle Community Broadcasting Station, WWI Ford Motor Co Dearborn, Mich. 265 WEBT Dayton Cooperative Industrial High School. Greencastle, lad. 231 W W1 Detroit News Detroit, Mich. 517 Dayton. Ohio 270 W LB University of Minnesota at Minneapolis, Minas. W W L Loyola University New Orleans, La. 280 WEBW Beloit Collage Beloit. Wis. 283 WLBL Wiseunslu Depa tweet of Markets. WEBX Nash,ille, Tenu. It. lt. No. 9, Franklin Pike. Stephens Point, Wis. 278 ALASKA Johen E. Cain, Jr. 263 W LIT lit Brothers Philadelphia. l'a 394 KFIU Alaska Electric Light & Power Co Juneau 226 W EBY Hobart 'talle Co Itolindale, Sloss. 226 W LS Sears, Roebuck & Co Chicago 111. 345 KFQD Chovin Supply Co Anchorage 280 WEBZ Savannah Radio Corp Savannah, Ga. 234 WLW Croaiey Radio Corp Cincinnati, Ohio 423 W E E I Edison Cu Boston, Mau. 303 W MAC Clive I1. Mererlity Ca..euovia. N. Y. 265 CANADA WEMC Euunauual Missionary College, Berrien Springs 286 WMAF hound Hills Radio Corp Dartmouth. Mass. 360 CFAC The Calgary Herald Calgary, Alta. 430 E St. W W W Louis lint ersiry st. Louis, Mu. 280 MA General Supply Co Lincoln, Neb. 254 CFCA Star Publishing & Printing Co., 18 King St. W., WFAA The Dallas Newvs. The Dallas Journal. W MA Not hera laboratories Lockport, N. Y. 265 Toronto, Ont. 400 Dallas. Texas 476 W MAN Ilcskelt Radio Station Columbus, Ohio 277 CFCF Marconi Wireless Telegraph l'o. of Canada, Ltd., W F A M Times Publishing co St. ('loud. Mimi. 273 WMAQ Chicago Daily News Chicago, III. 448 Canada Cement Bldg., Phillips Square, F ut W MAY Kligshighway W AV llthetatty Nebraska Lin oln, Neb. 273 Presbyterian Church, Montreal. P. Q. 440 WFBB Eureka College Eureka. 111. 240 St. Louis, Mo. 280 CFCH Abitibi l'ower & Paper Co., Ltd.. WFBC First Itaptiot Church Knoxville. Tenn. 250 WMAZ Mercer University Macon, Ga. 261 Iroquois Falls, Ont. 400 W F BD Gethsemane Baptist Church Philadelphia, Pa. 234 W M BF SHuul Reacts. Fla. CFCK Radio Supply Co., Ltd., 10229 101st St., W F BE John t'as tie 'Halte. P. O. Bus 41, Seymour, Ind. WMC Commercial Appeal Memphis, Tenn. 500 Edmonton, Ala. 410 WFBG W1111an1 F. Gable Co SI' west. Pa. 277 W MCA hotel ,leAlpin.. Broadway & 341h St.. N. Y. C. 341 CFCL (Intertidal Methodist Church, Victoria. If. C. 400 WFBH (Immerse Radio Corp N. Y. l'. 273 W M H a lnsworth -Gates Radio Co Cincinnati. Ohio 309 CFCN 'W. W. Grant Radio. Ltd., 708 Crescent Rd. N.W., F Co I W BI GehIn Radio Supply Camden, N. J. 236 WMU meblaslay I1 ill Electric Co...Washingtoo, D. C. 261 Calgary. Alta. 440 W F B1 St. Julie's lldversity tolleges.lie, Minn. 238 WNAC Shepard Stores Roston, Mass. 278 CFCQ Radio Specialties, Ltd., 791 Dunsmulr Ave., college W W F B K Dartmouth Hanover, N. H. 256 NAD University of Oklahoma Vonman, Okla. 254 Vancouver. Il. C. 450 W F BL Onondaga Untel Syre, use. N. Y. 252 W NA L Monier Central High School Omaha, Neb. 258 CFCR Laurettide Air Service, Ltd.. Nleklc Range Hotel, W F BM 31erchauts Heat at Light Co.. 519 Guarauy W NAP Wittenberg Collage Springfield. Ohio 248 Sudbury, Ont. 410 Building. Indianapolis. Ind. 268 W NA R First Christian Church Butler, Mu. 231 CFCT The Victoria City Temple, 1110 Douglas SL, WFBN Radio Sates & Service Co.. 1 Broad St., WNAT Lennie Bros. Co I'hlladelphla, l'a. 250 Victoria. B. C. 410 Bridgewater. Mass. 226 W NA Dakota Radio Anna talus Co Yankton. S. lr. 244 CFCU Jack V. Elliot, Ltd., 123 King St. W., WFBQ Wynne Radio Co.. 226 Fayetteville St.. W NJ Radio Shop of Newark Newark, N. J. 233 Hamilton, Ont. 410 Raleigh. N. C. 252 W NYC city of New York New York, N. J. 526 CFCW London Radio Company London, Ont. 430 WFBR Fifth Infantry. Maryland N. G., WOAC ('age Organ l'o Lima Ohio 261 CFDC Sparks Company. Wallace & Fltzwilliam Sts., Fifth Regiment Armory. Itellle ore, Md. 254 W OAF Tyler l'ommnerclel College Tyler, Texas 360 Naualmo, B. C. 430 WFBT Gloucester County Chie League. Pitmen, N. J. 231 WOAI Southern Equipment Co an Antonio, Texas 394 CFHC Henry Itlrks & Sons, Ltd.. WFBY Signal Officer. Fifth Corp Area. W OA Vaughn l'onserratory of Slusic. 708 Crescent head N. W.. Calgary, Alla. 440 Ft. Haves. Columbus. Ohio ... lawreneeburg, Tenn. 360 CF KC D. J. Fendell. Patricia Theatre Bldg., W FBZ 1110: College (Saleshurg. 1H. W OA Woodmen of the World Omaha. Neb. 526 Thorold, Ont. 295 WFI Strawbridge & (lothlar Philadelphia. Pa. 395 W OA Franklyn J. Wolff, 600 Ingham Are.. CFLC ('has. Guy Hunter, 551 Adelaide St., KFVH When Radio Shop Manhattan, Kansas 218 Trenton, N. J. 240 London, Ont. 430 WGAL Lancaster Elec. Supply & Coast. Co.. WOC The Palmer School of Chiropractic, CF QC The Electric Shop, Ltd., 144 Second Ave. N.. Lancaster. Pa. 248 Davenport. Iowa 498 Saskatoon. Sask. 400 WGAQ Yount. Hotel %herocprt. La. 252 WOCL hotel Jamestown Jamestown, N. V'. 275 CF RC Queen's University (Dept. of Electrical Engineer- WGAZ The South Bend Tribaw.....Samth niant. Ind. 275 W 0 Iowa State college Ames. Iowa 360 ing/. Fleeting Hall. Queen's University, WGBA Jones lire. & Radio Slfg. Co., Bahlhocre. Md. 254 WOO John W'a nen,ekrr Philadelphia, l'a. 509 Kingston. Ont. 450 WGBB Hairy 11. Corowm Frerpart. N. Y. 244 WOO Western Radio l'o Kansas City, Mo. 360 CFXC Westminster Trust Co., Columbia & Beside Sta., WGBC First Baptist Church N1,9110118.Irto. Tenn. 266 WOR L. hamburger & Co Newark. N. J. 405 New Westminster, B. C. 440 WGBF Fake Furniture Co. 307 Upper 7th St.. W ORD Peoples Pulpit Association Batavia, III. 278 CFYC Victor Wentworth Odium. Mercantile Bldg., Evansville. Ind. 217 WOS Missouri State Marketing pureau, 318 Homer St.. Vancouver, B. C. 400 WGBG ItrcIteubeeh's Radio Shop Thrlfton, Va. 226 Jefferson City, Mn. 441 CH BC The Albertan Publishing Co.. Ltd., WGBH Full hoer Herald Publishing Co WPAI Doolittle Radio ('orp New Haven. Conn. 268 708 Crescent "toad N. W.. Calgary, Alta. 410 Fail River. Mass. 209 W PAK North Dakota Agricultural College, CHCE Western Canada Itadlo Supply, Ltd., WC81 Frank S. Slegarge Vera stun, l'a. 240 .agricultural C. liage, N. D. 275 919 Fort St., Victoria, B. C. 400 WGBK Lawrence Campbell Johnstown. l'a. 248 W PAU Concordia College Moorhead. Minn. 286 CHCM Miley & McCormick. Ltd.. WGBM Tnemitee N. Sealy Prot Idesce. It. 1. 234 W PAZ Dr. John It. Koch Charleston. W. Va. 267 708 Crescent (toad N. W., Calgary, Alta. 440 WGBN Hub Radio Shop, 7211 First St.. I.a Salle, Ili. 256 WPG Municipal Radio Stet ion AI lenity City, N. J. 296 CHUS The Hamilton Spectator, Spectator Bldg., WGBO Dr. Ruses Atlan. 197 fauee Leon Are., WPSC fenils State college Stale College, l'a. 261 Hamilton, Ont. 410 Sau Juan. P. It. 275 WQAA Vorace A. Beale. Ir l'arkersbutg. Va. 360 "CHIC Northern Elec. Co Toronto, Ont. 350 W G BD Stout Institute Motomasie. Wis. 234 WQAC Gish Itadiu Sen lee Amarillo. Texas 234 CH NC Toronto Radio 1k-search Society. W CBS (:'rebel Brothers New York CID' 316 WQAE Moore Radio News Station vprltgficbl. Vt. 275 46 Lauder Ave Toronto, Ont. 350 W GBT l'unmen I iverslty Greenville, S. C. 236 WO A M Elect rival Equbmucnt Co Heed. Fla. 283 CHUG International Bible Students Association. WGBX University of Maine Orono. Ile Me 252 W OA N Snraibm Times Scranton. l'a. 250 ('or. Slain and 21id Sts., Saskatoon. Sask. 400 W G I A merican 'ladle & Research Corp.. W OAO ('a ltary Baptist Church New York. N. Y. 360 CHXC J. It. Booth. Jr., 28 Mange Rd., Ottawa, Ont. 435 Medford Hillside, Mass. 360 W HAS Print., Walter Co Lowell, Il ass. 252 CHYC Northern Electric Co., Ltd.. 121 Shearer St.. WGN Drake hotel Chivas°. Ill. 370 W01 Calumet Heinle, htooadcast ling ('i,..('hlogo. III. 448 Montreal, P. Q. 341 WGR Federal Telephone Mfg. Co Buffalo, N. Y. 319 W RAA Rice Institute Houston. Texas 256 Cl BC Jarvis Street Baptist Church Toronto, Ont. 312 WGST Georgia Srbnol of Technology Atlanta, Ga. 270 WRAF The Itadlo Club Laporte. Ind. 224 CJCA The Edmonton Journal, Ltd.. Journal Bldg., W GY General Electric l'o &4trtrrstualy. N. t'. 380 W R A L Northern States Power Co.. St, Croix Falls. V1'ia. 248 Edmonton, Alta. 450 W H A I nit emit) a' WIsronsan Madison, Wis. 283 W RA M I,on,bard College Galesburg. Ill. 244 CJCD The T. Eaton Co., Ltd.. Queen St. W., W HAD Marquette 1'nleersity 'Milwaukee. VV9a. 275 WRAN Black Hawk Electrical Co Waterloo, Iowa 236 Toronto, Ont. 410 W HA G l' nhrrslly of Cincinnati Chtelnneti, Ohio 232 W RA Amrin(.h ('allege Yellow Sprligs, Ohio 263 CJCE Sprott Shaw Radio Co., Room 1604, Tower Bldg.. WHAM EvshnaII Shuol Of Shure, Rochester. N. Y. 277 W R A W Avenue Radio Shop Iteading, Pa. 238 Vancouver, B. C. 400 W H A R Seaside Hotel Silently ('it', N. J. 275 W RA X Mesons Garage Gloucester City. N. J. 268 CJCF The News Record, 39 South Cameron St., W HAS (ourler Journal and Louistllie Times. W R BC Immanuel Lutheran Church.... Valparaiso, Ind. 278 Kitchener, Ont. 295 Louisville. Ky. 400 WREO Ice" Motor Car l'o Lansing. Mich. 288 CJCK Radio Corporation of Calgary. Ltd., W HA Wilmington Electrical Specialty Co.. Inc.. W RC Radio Corp. of America Washington. D. C. 469 223 Second Ave. N. E.. Calgary. Alta. 316 Wilmington. Del. 366 W R H F Washington Radio Hospital Fund, CJCL A. Cont lore Montreal. P. Q. 270 W H AZ Rensselaer Polytechnic Institute Troy, N. Y. 380 525 11th St., Washington, D. C. 256 CJCM J. L. Philippe Laundry Mont Joll, 1'. Q. 312 W H B Sweeney School Co Kansas City, Mo. 411 WRK Damn Ros. Elec. en Hamilton, Obi,. 270 CJCN Simone. Agnew & Co Toronto, Ont. 410 WHBA Shutter Music (louse Oil thy, Pa. 250 W R L (*Won College Schenectady. N. Y. 360 C1 GC London Free Press l'tg. Co.. 440 Richmond St., WHBB Rebel's Store Stevens Point. Wis. 240 WRM University of Illinois Urbana. III. 273 London, Ont. 430 W H BC Henry L. Lev Canton, Ohio 254 WRR City of ballas Police and Fire Signal Dept., C1SC The Evening Telegram, 81 Bay St., Toronto. Ont. 430 WHBD Charles W. Howard Belefontaine, Ohio 222 Dallas, Texas 261 CKAC La Passe Publishing Co., Ltd., Car. St. James W H B F Beardsley Specialty l'o Rork island. 111. 222 WRW Tarrytown Radio Research Laboratory. St. & St. Lawrence Blvd., Montreal, 1'. Q. 430 W H BG John S. Sk.mne Hari shurg, Pa. 231 Tarrytown. N. Y. 273 CKCD Vancouver Daily Provin e, 142 Hastings St. W., W H BH Culver Military Academy ..... Culver. Indiana 22 WSAB South East Missouri State Teachers College. Vancouver. B. C. 410 W H B1 Chesaning Elec. Cu Chesaning. Stich. 227 Cape Girardeau. Mo. 360 CKCE Canadian Independent Telephone Co., Ltd., W H B1 laser Arno ('o Ft. N'nine. Ind. 233 WSAC Clemson Agricultural College. Wallace Ave. & Ward St., Toronto. Ont. 450 W H B K Franklin St. Garage. Sla Ina Inc Ellsworth. 360 CKCI Le C. W. Lindsay Bldg.. W HBL James H. Slusser Logansport. Ind. 220 ClemaoProvi "Soleil." Limited, WSAD J. .V. cor. St. John & St. Eustache St., F. Q. W H BM C. L. Carroll ('hicago, III. 233 Foster Co dene, R. I. 261 Quebec, 295 W H BN First Ave. Methodist Chore,. WSAG Gospel Tebenuele St. Petersburg)). Fla. 266 CKCK Leader Publishing Co.. Ltd Regina. Sask. 420 St. Petersburg, Fla. 258 WSA1 United Flavine Card Co Cincinnati. Ohio 326 CKCO Ur. G. M. Gelded, 282 Somerset St. W., WHBO Y. M. C. A Sumner St.. Pawtucket. R. I. WSA1 Grove City College Grove City. l'a. 229 Ottawa. Ont. 403 WHBP Johnstown Automobile Co Johnstown, Pa. 256 WSAN Allentowt Call Publishing Co...Allentown. Ps. 229 CKCX P. Burns & Co., Ltd., 708 Crescent Ral. N. W., w H BT Thomas W. 'Muhl. Jr....i>owners (bise, iii. 206 WSAP Seventh Tray Adventist Church. N. Y. C., N. Y. 263 Calgary. Alta. 440 W H B U It. L. ltl,g's Sons Anderson. Ind. 218 WSAR Doughty & Welch Elec. Co....Fall River. Mass. 254 CKFC First Congregational Church...Vancouver, B. C. 385 W H BW D. R. E ienzle Philsdelplda, Pa. 215 WSAU Camp Sladenfeld Chesham, N. H. 229 CKLC Wilkinson Electric Co., Ltd. .2119 Seventh Ave. 400 W H DI William hood Dunwomly Ind Ins.. WSAV Clifford W. Vick Radio Construction Co., CKOC Wentworth Radio Supply Co., Ltd., Minneapolis. Minn. 278 Houston. Texas 360 Hamilton. Ont. 410 WHEC Hickson Electric Co Rochester. N Y. 258 WSAX Chicago Radio Laboratory Chicago, Ill. 269 CKy Manitoba Telephone System. Sherbrooke St., W H K Itadlotox Co Cleveland. Ohio 283 WSAZ Chase Electric Shop Pomeroy, Ohio 244 Winnipeg, Man. 450 W H N George Schubel, Loew's State Theatre Bldg.. WSB Atlanta Journal Atlanta. Ga. 429 CN RA Canadian Nat'l Railways Moncton, N. B. 313 New York City 360 WSL Hatfield Elec. Co Utica, N. Y. 242 CN RC Canadian Nat'l Railways Calgary, Alta. 440 WHO Bankers Life Co Des Moines, Iowa 526 WSO E School of Engineering of Milwaukee, CN RE Canadian Nat'l Railways Edmonton, Alta. 450 WIAD Howard It. Miller. 6318 N. Park Ave., Milwaukee. VVIS. 246 CNRM Canadian Nat'l hallways Montreal. P. Q. 341 Philadelphia. Pa. 254 WSRF Harden Sales and Service Broadland, Ill. 233 CN RO Canadian Nat'l Railways Ottawa, Ont. 435 WIAK Journal- Stockman Co Omaha, Neb. 278 WSRO Radio Co. Marry W. Fahrlander), CNRR Canadian Nat'l hallways Begin, Sask. 420 W IAS Home Electric Co Burlington. Iowa 283 Hamilton, Ohio 252 CNRS Canadian Nat'l hallways Saskatoon. Bask. 400 W IBA The ('anital Tines Stedison. Wisc. 236 WSUI State L'Nverslty of Iowa. Capitol and CNRT Canadian Nat'l Railways Toronto, Ont. 400 W 1 K K. & I.. Electric CO SteKesport, Pa. 238 Washington Ste , Iowa City, la. CNRW Canadian Nat'l Beltways %Vinolpeg, Man. 450

www.americanradiohistory.com \Vhai the Trirthin gets where its hotter than Dummer /

Crosley 1 rirdyn on the Sahara Desert at mid-day - brings in Radio -Paris on the loud -speaker! Not only at mid -day, but in February in Northern Africa and far hotter than any American summer. The picture above, a post card snapshot sent from Tunis to Mr. Crosley. by D. F. Keith of Toronto, Ont., tells this story on the other side:

Tunis. North Africa. March 3. 1925 Dear Mr. Crosley: Fishing here is rotten but radio is fine. On the ro" Sahara. using three tubes on the Trirdyn circuit. recep- AsesÉ tion from Pans came through on the loud speaker. Along the south coast of the Mediterranean. using this set, six or eight high power European stations came in with good volume by day -light and all of them after dark. Can usually get a few American after I a. m. Can you fish with us this year? CrosleySpec Cordially. th (Signed) D. F. Keith n ,., ,s Further details on the margins of the picture: - Ftt''s ot s t' FN h Algiers. February.I925. Receiving noon- t It of .c,.,^,\s,;stc`rts Sahara Desert.250milessouthof r" "' tad,,, ,\ ' day concert from "Radio- Pans Pans. using aerial and counterpoise. ctl1 es o \ ,,"e"r, t "o t Who said summer in America is a poor time for ca ''j.t ^,,. .t ,o radio if the receiver is a Crosley Trirdyn? .00 ,u .1f N rl and aspiring invited to s`t Pri3t,, ,. ,' reco Every radio fan -actual -is t.M think this over and then act. 11t ir pt) 4t On the Tnrdyn is the beautiful new Crosley Musicone, r most 'furling development. The Musicone's radio's v s !- use to so superior that expect it `+r.:. ability and ifs beauty are 7 4... replace a half million loud-speakers this year. $17.50. ...`.c r - rLL__ P The Crosley Radio Corporation, 528 Sassafras St., Cincinnati ar ("-. v ., ... -' Powel Crosley, Jr., President At / ti .. . W ..., .._ 4,4, g .y7y/Iw r ..e ML ..441 ~ ~ dá. '--+ ETIra - "WS ,cRUSLtY RADIO Better -Costs Less

www.americanradiohistory.com FPut in the best. To get the best out of a set -put the best into it. In some parts of the circuit, quality is more important than in others. It is -most important in the tubes. They should be genuine RADIO - TRONS. The volume -the clearness -the quietness and the economy of operation these depend WD-11 - on WD -12 many things -but first of all upon the Radiotrons. UV -199 UV -200 No matter what the job of the tube in the set, U V-201 -a there's a Radiotron to fit it. You will always find

Radiotro ns with these model it makes a difference if you demand a Radiotron numbers are only genuine -ask for it by name -and look on the tube for when they bear the name Ra- the word Radiotron and the RCA mark. diotron and the RCA mark.

Radio Corporation of America Sala Offices: Suite No. 15 233 Broadway, New York 10 So. La Salle St., Chicago, 111. 28 Geary St., San Francisco, Cal.

RadiotrU. S. PAT. OFE 'PRODUCED ONLY BY RCA