Western electric 109 b schematic

Page 1

Wmm Hectfic Company
No. I 09-B AMPLIFIER

COMMERCIAL PRODUCTS NO I-l3
APPARATUS REFERENCE SHEET AMPLIFIER
I09 B
I-5-39
WW
GAIN ........... 61 DB (m) WHEN WORK-

ING BETWEEN A 200-081!
GENERATOR AND A 500 03
8-05] LOAD. FIG. 1.

OPERATES FROM ------ 0-500 GEMS

INTERNAL INYUT INPEDAM)! - 500 OBIS

OPERATES INTO ------ 8 DR 500 GEMS
INTERNAL OUTPUT IMPEDAICE- 1/2 01" LOAD IWEDANCE
OUTPUT POKER ------- 12 IWATTS DR 33 DB

( 0 mm - .ooe
WATTS)- frfl TOTAL EAR-
uoNIC DISTORTION.

FIGS. 2 & SI
OUTPUT NOISE ------- (-) 40 n5 UNI'IEIGHI'ED
(0 mm - .oce WATTS)
man sum! ------- 105-125 vows, 45-65

CYCLES. 100 WATTS.
FUSE FDR 1.25 AMPS.

CAIN CONTROL ------- soo-oI-w POTENTIONETER
(40 DB CONTINUOUS VA- ~
IIIATION). flow-5 a
yIJ'IHJT vs TOTAL 1 u 2
N015 :3
w WW .,

v u _____ 1. The dial :1 X I :1 II 6 he i 0
mm DmusIoNs 19" I 7" 2. m runaifimifix iriiu'liiy Is 1030 of? ° :
DEPTH ---------- 7-1/2" E 3
NEIGHT » -------- APPROX. 20 LBS. 3!
MOUNTING --------- STD. 19" NELAY RACK on n

SUITABLE CABINET .3
N931; THE 1093 AMPLIFIER MAY BE ozmmn mm g
DIFFERENT LAT FINISHES AS FOLLOWS:
m mm 3 I 3
1095-3 auaana FINISH BLACK JAPAN I I .3 9.
loss-I5 ALUNINNN CNAI FINISH 7 : 7
- u n ' r 3 1'
1091! 24 Am I'LIL LAC .u I FINISH .- a
Ami-nun
W
METAL m u- Lou nun-n.
FIhST STAGE ----- no - 637 OR Two - 6.770
SECOND STAGE ----- TWO - 6L6 OR TWO - SLGG _ :
mnnm ------ ONE - 521 ON on - EzHG .. i -
3 . i
W I: u :1 m :1 a: ,
TWOI' OIEDI ll IBIJKIO Ct - 0 LaieDo'

ESR-G 12476 - ASSEIBLY

a

ESE-612478 - WIRING DIAGRAM "was a ,
ESQ-612477 - scumu'rm -
ES-743720 - CAIN vs FHEQUBICY CHARACTERISTIC W

BIS-743672 ' . m V N01§
35-743673 POLE-x OUTPU. VS WWNIC DIS'IDRYION

Sfl

The antenna is primrily third Immune,
Tho loud ruslatuma 1: a cum.

m-

NOTE: THE 1093 ALPLIFIER 13 SIMILAR TO M ENC
AkPLII'Ifl. EXCEPT THAT IT HAS A 1.02) INPUT INFE-
DANCE, HIGEEK GAIN, A POTEIITIOEETER FOR CONTROL-
LING THE GAIN OF THE NLPLIFIEN AND A PORK SNITCH.
THE CONTROL ELEEEN'TS EXTEND THROUGH THE HAT FOR
OPERATION FROM THE FACE OF THE AMPLIFIER.

Tat-1 annu- muomu in s

A 11.0

r I

V _ MEWEW,
I

Olin u n- cmneuu-uu W non 3° am .

147,4;100 I..I.
(ELM 0.1a.
,-8.-/ g

I i
L* I
u :1 .9 a: an

Inn: nmyp :- m .?oa an. - 0 Lin:

1!

mummy DI CYCLE m 535mm

AI]!-

FOR WIRING DIAGRAM AND SCHEHATIC SEE REAR OF THIS SHEET

98*