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Including TELEVISION DATA COMPLETE

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Including TELEVISION DATA COMPLETE 18 PAGES OF including TELEVISION DATA COMPLETE INSTRUCTIONS FULLY ILLUSTRATED on28 WITH CHARTS, RADIO FORMULAE, DIFFERENT SCHEMATIC CIRCUIT MODELS DIAGRAMS, PICTORIAL WIRING by DIAGRAMS / PRICE50CENTS 1 FOREWORD This new issue of the Meissner Instruction Manual is dedicated to the Radio Amateur, Serviceman and Experimenter. The subject matter will be found to contain a wide variety of interest to anyone interested in the Radio art from whatever angle. Complete constructional data is herewith presented on the entire 1939-1940 line of Meissner kit receivers. This information includes the detailed Pictorial Wiring Diagram, in addition to the regular Schematic Circuit Diagram, which makes Meissner kits so easy and simple to con- struct. In addition to complete information on receiver kits, there is pre- sented technical data, diagrams and operating instructions on the sev- eral ready -wired units which were introduced in the 1939-40 line. These include such items as the new DeLuxe Signal Shifter, Signal Calibrator, Signal Booster and the MC 28-56 Converter. All of the material presented is not new. Some previously published material has been reproduced in order to make the book complete and self-sufficient. Not only, however, have new kits and wired instruments been included, but many pages of entirely new informative material and charts have been added. The treatise on "Television in Theory and Practice" will be found to provide excellent coverage of a comparative- ly complex subject in a simple and understandable manner. This article, in connection with the constructional information on the Meissner Television Receiver, will provide a practical education on the present stage of the art. 2 MEISSNER INSTRUCTION MANUAL THE RADIO -FREQUENCYSPECTRUM This chart will enable the radio listener to determine the frequency chan- nels to which he must tune when looking for reception inany of the classified services listed at the bottom of the page. 6.0 8.0 5.0 10 4.0 0611111111111111111111111MLN*4 3.0 ce*. --..kt-4Aitill1[1111111L-4/04". 15 MC MC % 01111111111111*/* s,4''Or '101111. 4-4' 0 20 2.0 30 1.5 MEISSNER CHANNEL SPOTTER 40 1.0 Radio -Frequency Allocations 50 500 60 200 80 Itt 100 IN0W1winoIIII iiiitittA0 00 KC -momWASSON%$, M C 50 1000 150 20 1 0110Illetti%200 10 300 1 TELEVISION 6SHIP AND COASTAL 2 EXPERIMENTAL 7AIRPORT AND AVIATION 3POINT-TO-POINT 8STATE & LOCAL POLICE 4GOVERNMENT 9AMATEUR COMMUNICATION 5NEWS & PRESS 10U. S. & FOREIGN BROADCAST MEISSNER INSTRUCTION MANUAL 3 HOW TO TELL WHAT RESISTOR TO USE RESISTANCE POTENTIAL DROP POWER DISSIPATED CURRENT OHMS VOLTS WATTS USE RESISTOR MILLIAMPERES A B A B A B LISTED BELOW A B 10,000 - 1,000,000 1000 - 10,000 100 100 - 100 -r- 10 80 80 9000 Z---- 900,000 800 90 9 8000 200 WATT -_ 60 60 9000 - 800,000 80 - 8 600 6000 _ 40 40 7000 -7-- 700,000 . 70- 7 - t 30 30 100 WATT _ 400 -t- 4000 6000 600,000 -2.- 60 6 - 20 20 300 _ 3000 - ....- HOW TO USE THIS CHART - - 50 WATT .:-... 5000s -X500,000 50 - ..-: 200 7 2000 10 10 WIRE -WOUND TO FIND TYPE 4000 - 400,000 _ 40 4 - - 6 - 6 20 WATT WATTS, OHMS, -. 4 4 - , + 10 WATT -_. tou--4-..1000 3-:- 3 3000 -- 300,000 - 30 3 _ VOLTS, MILLIAMPERES 80 4- 800 WATT -2 --,2 5 i ---- - -- 607.-- 600 2 WATT - With this chartitis possible to find two of the -t- - following items - omen', voltage, wattage, resistence - if v- I -ii- I the other two are alreadylino., .8 --- 8 2000 - 200,000 40 -7--. 400- 20 ----,- 2 Lay ruler or straightedge etfOlf the chart so that - - 1 WATT :.--. it intersects the two scales it the points for which the vlits 6 --- .6 are known. The points et which the rule crosses the tithe, 30-.-z-300 ...-. - _ two scale. are the desired values.Do not use scale "B" . .4 - .4 1500 J.- 150,000 with scale "A" -always employ the same soles -either - IS 1.5 - "A" exclusively or "B" ezelustvely. 20 --- 200 .3 - .3 - Since the ratings of resistors are given for a resistor -: % WATT .2-.2 mounted in hes air (not under a radio chess.) the capacity S _ - .1 resistor for radio useismuch kss than itsspecified ...- - wattage. The recommended values for rootage are 611611d -_ . COMPOSITION on radio set practice. - 1000 -:- 100,000 10 --- 100 .1 .1 TYPE -- = A, an example of the method of using the chart, - .08 .08 900 --- 90,000 indicates the following reletionshio. 8 - 80 9 dotted line 06 - 06 800 -7: 80,000 On ,..i. "A" R 1000 Volts - 100 4- 6 -._k 60 8 9 Watts 2 Milhenspetes20 04 .04 700 -,- 70,000 7 On scale "B" R 500,000 Volt,1000 .03 - .03 110 WATT Watts 2 Ntilliemperes 2 4 --e-I 40 600 -L-- 60,000 -. _ -". 02 .02 6 -- .6 3 - 30 _ - I 500 -- 50,000 _-..- - 5 .5 _ I- CI .01 _ 2 -'.-20 .008 .008 400 - 40,000 -T .006 - - .006 4 4 = - _ -4- - 004.004 I 10 .003 .003 300 30,000 3 8 - 8 _-,- 3 _-4- _ .002 -- .002 R. M. A. COLOR CODE .6 2---6 - = _ BCC, EN: DOT : 001 -- .001 --- 200 - 20,000 BLACK0 BLACK0 BLACK -4 0008 -- .0008 _ 1 BROWN BROWN I BROWN 0 -.- - RED 2 RED 2 RED 00 0006-.0006 _ ORANGE 3 ORANGE 3 ORANGE 000 -- YELLOW4 YELLOW 4 YELLOW 0,000 .3 :_-_ 3 - GREEN S GREEN5 GREEN 00.000 = BLUE 6 BLUE 6 BLUE 000,000 -: - .0004 --.0004 vicy_ET 7 _ - 150 - 15,000 VIOLET 7 VIOLET 0,000000 - 1.5 .15 GPM 8 GRAY 8 GRAY 2 _:.-_-__ 2 0003 .0003 WHITE 9 WHITE 9 wHITE _ - .0002 .0002 Reproduced Through Courts's), 01 RADIO TODAY 100 10,000 1 -I .0001 ----- 0001 4 MEISSNER INSTRUCTION MANUAL HANDY RADIO FORMULAE Direct Current Relations Complex Impedance VOLTS = IR w z R -^nesmmos.-- AMPERES = 0090001D/ - OHMS = L 9,0000M 12 W Z = yR2+ 452LaF2 2 Ti L R WATTS = ElR 12R Z - R 111:22+47i2L2F2 Resistance Relations z z R TOTAL R TOTAL IFC R 4%11c2 Z =' Z 1147r2Ra F24- I R TOTAL = R1+ R2 +R3 etc. 1 _ RioTAL RI Rz R3etc Resonance Formulae I Two Resistances Only F = L I 274 LC -4)12F' C C 4 n- 2 F2L Where F is in cycles, L is in henries, and C in Farads R TOTAL RT DESIRED x Rz RT x Ri R TOTAL =R1 + Ra Unknown =RI - RT Capacity Relations 211FL CTOTAL Jetc. Z - 4 712 F2 LC -I Z = W-211FLc)+ R C -TOTAL At Resonance: At Resonance: -1Ez Z = Q 2`)7FL Cl C2 CJ Z = R Where Q = 2 TIRF-1--- I I %-oTOTALCTOTAL =--t-a+ t-1 CTOTAL = CI ± C2 + C3 etc. Coupling Coefficient Two Capacities Only C TOTAL CT (DESIRED) C2 CI Unknown M x C x C K - CTOTAL Unknown - CI + C2 C1 - CT K VL1 x La VLO-M) (1._ 2+M) Simple Reactance XL X c X e --\OQQQQQQQ/ -AINQQQ/-11- Arc,xcm C2 )LC= x Cm Ct xCm TCI+Cm C2 +Cr', CI+ Cm x Ca+ Cm K K Cm Cm XL = 2'5 FL Xe= 211FL---I--- Where Cm -C3 X C4 X 21i FC 211 FC C3 -I-C4 Over -Coupled Circuit Frequencies Where F is the resonant frequency of each circuit independent of the other and K is the coupling- coefficient MEISSNER INSTRUCTION MANUAL 5 CAPACITY FREQUENCY INDUCTANCE A,B A B A B MICRO -MICROFAR ADS KC MC MICROHENRIES 500 230 2.5 400 400 500 600 700 7 800 8 900 9 1000 10 8o 70 60 159000 2.000 f kc 1 1500 0.9 30 80 0.8 70 0.7 60 4000 40 0.6 50 0.5 5000 50 2.0 40 0.4 6000 60 7000 70 30 0.3 8000 80 9000= 90 ars 10.000 100 10 0.2. 9 8 15.000 150 oat 7 6 20.000 200 When any two of the quantities F, L,or C are known the third can be found by drawing a straight line. Example: 100 mmfd. and 100 microhenries tune to 1690 kc. (reading all A scales) or 100 mmfd. and 1 microhenryresonates at 15.9 mc. (reading all B scales). 6 General Construction Hints The following hints on the construction of receivers socket to permit reversing it if it was originally installed from Meissner Kits are offered to the experimenter to call incorrectly. his attention to a few of the practices that the engineer PAPER CONDENSERS or professional radio man uses.Their observationwill. Most paper by-pass condensers have one connection perhaps,eliminateeasily -madeerrorsandwillassure marked "ground" to designate the outside foil in the con- proper operation of the completed receiver. denser.If this end is grounded this outside foil shields PICTORIAL DIAGRAM the inside foil which is the "hot" or high -potential part of A pictorial wiring diagram of each kit has been pre- the condenser. Wherever a condenser by-passes any point pared with great care to show what no circuit diagram to chassis itis recommended that the "ground" sideof can show-the physical arrangement of parts and leads, the condenser be connected to chassis. which, in many cases, is more important tnan some of the values of circuit elements shown in the schematic diagram. DRY ELECTROLYTIC CONDENSERS If the arrangement of parts shown therein is followed Dryelectrolyticcondensershavetheirpositiveend closely, your kit will work with the same freedom from marked "positive" or "plus." When connected into a cir- troublethatcharacterizes thefinishedoriginalMaster cuit the marked polarity must be observed.
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