JANUARY 19 24 25 CENTS .....: lj-i_,V-NAW`W`-.-.A-- i%-.-,W1W`-`,.A.._177 oyEoWnADI .features in this Issue The Big Chicago Radio Show AVAIVAW&VATIL A A A `New Wireless Age Receiver Push a button-that's all ! Jmertcas 9oremost Easily Constructed 'DX in the Grand Canyon zdiophone eview The Woman Listens In 1L NNING MPLIFIER TYPE C 3, PATENT RADIO TUBES The Heart of your Receiving Set IN the case of all living things the heart is the most vital Laboratories of the General Electric Co., and are now being organ. Weaken, injure or destroy the heart and life is made in that company's modern and mammoth factories accordingly weakened, endangered or destroyed. under the supervision of highly skilled engineers. In a radio receiving set the tube is analogous to the Better tubes are not attainable. There is a model heart. Remove it entirely and the set will cease to function. specially adapted to every set, every circuit and every Use an inferior tube and the results will be inefficient and socket used today. Every radio dealer can supply you generally not pleasing to listen to. with Cunningham tubes. Buy them for replacements. In living things a perfect heart does not always insure Insist that they be included when purchasing a new set- a healthy body, but on the other hand it is indispensable. and you will know that your receiving set has a perfect The same is true of the radio receiving set. It may be heart. perfect in every detail but unless the best tubes are used The care and operation the results will not be perfect. of each model of Receiving Tube is fully explained in our new 40 -page "Radio Tube Data Book." Cunningham Radio Tubes were Copies may be obtained by sending ten Cunningham Radio Tubes developed in the great Research cents to our San Francisco office. C -30M-6 Volts 4 amp. PATENT NOTICE Amplifier $6.50 C-299-3 Volts .06 amp Cunningham tubes are co -er - Dry Battery Det. k ed by Patents dated 11-7.05, Amp 6.50 1-15-07, 2-18-08, and others C-300-6 Volta Gas Con- issued and pending. Licensed tent, Detector 5.00 C-11-1.1 Volta .25 amp for amateur, experimental Dry Battery Det. and and entertainment use in Amp. Special Base 6.50 radio communication. Any C-12-Similar to C-11 Home Office: 182 Second St. 154 West Lake Street 30 Church Street other use will be an infringe. with standard base 6.50 San Francisco, Calif. Chicago, Illinois New York City, N. Y. ment. JANUARY, 1924 THE WIRELESS AGE 1 OTLAND Yard, as well as our own Federal their lost hearing, depend upon the marvelous sound SCSeeret Service-for the capture and conviction of transmission of the DICTOGRAPH Acousticon. criminals, depend upon the marvelous sound Similarly, five hundred and forty prominent European transmission of the Detective DICTOGRAPH. amateurs taking part in the trans -Atlantic tests, as well as twznty-three hundred and fifty expert Ameri- The Embassy at Paris, as well as our od+n great cans also participating-for the reception of loud, clear General Electric Company-for the efficient operation signals from foreign shores, depend upon the marvelous of their organizations, depend upon the marvelous sound transmission of the DIC TOGRAPH Radio Headset. the DICTOGRAPH System of sound transmission of This superlative instrument represents the latest and Interior Telephones. greatest DICTOGRAPH achievement. The coils are Famous members of the European nobility as well rated at three thousand ohms resistance. The weight is as our own thankful citizens-for the restoration of to ounces. The price is eight dollars. If your dealer does not carry the "Aristocrat" write direct to this company, giving his name DICTOGRAPH 220 W. 42d ST. PRODUCTS CORPORATION NEW YORK CITY When writing to ae%ertisers please mention THE WIRELESS AGE Americas 9oremost Iadiòphone Jeview January, 19241- Contents Tour Authors DX Reception in the Grand Canyon, By Max Abel 17 Pictorial Section - - - - - 19 R. H. G. MATHEWS (The Chi- Broadcasting Congress, By Otto cago Radio Show) is managerof the Wilson 23 Central Division of the A. R R. L. Mat- ty, as he The Chicago Radio Show, By R. G. is known to thousands of radio H. Mathews - - 24 bugs, operates under the call 9ZM, and is one of the best known of the old timers. Whoops of Wild Rodeo Warriors, By Stuart Hyde Hawkins 27 Radio de Luxe In the past he has been active in the - z8 promotion of the amateur radio shows in Chicago and in the starting of Radio The Woman Listens In, By Hortense Lee Topics which was formerly the official 30 organ of the The Navy's Radio Net, By 9th district Council. He is J. Farrell 32 now with Zenith. When Marine Radio Reports Were Tabooed, By Old Timer 34 nIIIIIIIONIiIll01101ililllliial Miles, Some Record! 4,500,000 35 Peeps into Broadcast Stations .DONALD GORDON WARD 36 (R. F. Amplification and Regener- The Personality of a Broadcasting ation) is the technical instructor in the Station, By Lloyd Jacquet 38 Radio Institute of America. He made a Broadcasting Station Directory receiver at the precocious age of io, and 39 was the seventh licensed amateur in the Afloat and Ashore with ist District. His course in electrical en- the Operator, By W. S. Fitzpatrick - 41 gineering brought him to í9i7 and the N. A. W. A. World War, in which he participated as a 46 member of the U. S. Army Signal Corps. Laughter on the Radio Wave He has been a Marconi man on several - 47 ships, and has had a wealth of operating " The Wireless Age " experience. Push Button Receiver, By John R. Meagher 48 Radio Frequency Amplification, Regeneration, and the Single Circuit Receiver, 11191111111111111111111111911111 11131 By Donald Gordon Ward 51 An Efficient Speech Amplifier, By K. M. Mcllwain rAfR. JOHN R. MEAGHER (Push 55 Button Receiver) designed The Test Table, By R. B. Clarkson Wireless Age 57 Uni-Control Receiver, de- Workshop and Laboratory scribed in the Decemberissue, which won 58 immediate popularity. His chief joy in A Crystal Receiver - - - life seems to be, after getting through 59 with the construction of one set, to tum Information Desk - - _ _ _ _ _ _ _ 6o impatiently to fresh experiments. He New Appliances wastes little time in enjoyment of the and Devices 62 fruits of his labor, and gets no thrill from State College Receives Gift of Radio Plant - - _ the fact that the completed set works. 63 "Of course it will work!" he exclaims Industrial Inklings - with asperity; and of course it does. 66 Stations Worked and Heard 86 PUBLISHED MONTHLY AT WIRELESS PRESS, INC., 326 BROADWAY, ANGELES, NEW YORK LOS CALIF., 958 So. Spring St. CHICAGO, ILL., Marquette Bldg. GREAT BRITAIN, Coast Publishers Co. Wheeler & Northrup AUSTRALIA, 12-13 Henrietta St., London. 97 Clarence St., Sydney, Yearly subscription in U. S. A., 32.50-Outside U. S. A., N. S. W. 53.00; Single Copies. 25 cents. Entered as second class matter Oct. 9, 1913. Post under the Act of March 3, 1879. Copyright, 1923, Wireless Press, Inc. When subscription expires you will find Office, New York, N. Y., a renewal blank enclosed. Return with remittance promptly. James G. Harberd, Pres. L. MacConnach, Secy. George S. DeSousa, Treas. H. L. Welker, Adv. Mgr. H. H. Reber, Bus. Mgr. Major Jerome W. Howe, Editor John R. Meagher, Technical Editor C. S. Anderson, Associate Editor Because certain statements and expressions of opinion from correspondents and others appearing in these columns from time to time may be found to be the of controversy in scientific circles and in the courts, either now or in the future and to sometimes involve subject merits of apparatus employed in wireless signaling, the owners questions of priority of invention and the comparative and publishers of this magazine positively and emphatically disclaim any for any statements of opinion or partisan expressions if such should at any time privity or responsibility sisear herein. Printed in U. S. A. THE WIRELESS AGE is a member of the Audit Bureau of Circulations AGE 3 I_\ \ \ 1924 THE WIRELESS You Young Men Who Want to Make Big Money ConsklerThese Slarllrirg Tads! Are you ambitious? Are you looking for an opportunity for quick advancement? Here's a real "money -making tip"-sound, practical advice from a man who is qualified to give it. No matter what you are doing now-no matter what your experience in the past has been-if you are sincere in your desire to make big money and to achieve something really worth- while, you will read, carefully, every word of this message. nothing surprising about their might be The same story is true of electricity, the dio. There's Thousands of young men who the automobile and successes though. The opportunities are earning big money now-who might later be telephone, the telegraph, of them. Naturally the man to fail, many other fields. Each had its day, and there-thousands America's leaders-are doomed extraordinary opportunties to who is on the spot, who gets in at the begin- simply because they are not looking ahead each offered ning, is the one to profit by them. future. those who got in early. Radio. On and building for the ago, the field of greatest prom- Young men are needed now in In my own life -time, I've witnessed scores A few years on sea, there are opportunities- more pit- ise was advertising. And now-today-a new land and .of conspicuous successes-and even into existence which will and opportunities that offer greater promise And the striking fact is, that it industry is coming in other field.