Western electric 103 a schematic

Page 1

Wesltm Elecnic Company

No. | O3-A AMPLIFIER

COMMERCIAL PRODUCTS N O | - 9
APPARATUS REFERENCE SHEET AMPLIFIER
I03 A
4 - 28 - 37

ELECTRICAL CHARACTERISTICS

GAIN ------------- km. 5861:

OPERATES FROM -------- 200 Guns

INTERNAL IN'PIIT IIJPEDANCE - - - 500 OEJIS

OPERATES INTO ------- 8 OR 500 OBIS

INTEENKJ. OUTPUT IMPEDANCE - - 1/2 OF LOAD IEIEDANCE

OUTPUT POOIER --------- 8 IA'I'IS, 5; EARLIOIIIC DISTUR-
I'ION

OUTPUT NOISE - - - - - - - ~50db UNVEIGE'ED

POWER SUPPLY --------- 105-125 VOLTS, AC 45-63

CYCLES, 75 WATTS. SHOULD BE
FUSED FOR I AEPERE.

A DJ. VOLTAGE 14-60 VOLTS IS RE;UIRED TO

OPERATE m RELAY IN THIS AMPLIFIER.

GAIN CONTROL --------- A 500 0H}; POTENTIOHETER IS

PROVIDED. AOdb CONTINUOUS

VARIATION.

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EQUIPIIENT CHARACTERISTICS LOADS A7 A consum THIRD HARMoMc msmnnou or 5%

mom ------------ 40 LBS. I I I IIIFI ' I
sun ------------- 1943/16" 1 7-7/8" x 10-3/4" WV, _ ,,, I I
MOUNTING ----------- IT IS DESIGNED FOR DESh OR I I I

£1:st L0) sow

I
TABLE nowrxxc i . amp"

m 1. THIS ALIPLIFIEA CONSISTS OF A 109]. ALIZLIFIEV,
EOUNTED IN A METAL CABINET AS ILLUSTIJED.
ADDITIONAL INFORLATION ON THE 109A $113155
IS GIVEN 0N SHEET NO. I

2. FACILITIES ARE PROVIDED IN THE 103A AZLILIFIER
FOR MOUNTING A 152A 711nm; COIL, BUT THIS
COIL MUST BE ORDERED SEPARATELY. WHEN THIS
COIL IS USED THE AMPLIFIER OIERAIES FLO! A
600 0811 IMPEDANCE AND SUPERIHPOSED D.CI CUR-
RENTS AS HIGH AS 100 KILLIMIFEIIES LIAY E'E
APPLIED. (SEE ALSO NOTE 3 OF sczmumc.)

OUTPUT m wnTs

I

I

I

no 2 3 4 5 a 759mm 2 3 A s
1:00:ch IN CYCLES PER SECOND

HEFSKS

Inward; JO _
FM INPI/7 ra/wnr/o/vs at; 6(flIMAIVC

muons: m n-

La-VJZIBO

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