Western electric d 151 schematic

Page 1

Wesnmt Electric Company

No.D | 5| | 95 AMPLIFIE

COMMERCIAL PRODUCTS NO

APPARATUS REFERENCE SHEET P33

AMPLIFIER
D-I5II95

GENERAL 4'24'4'

This il 1 high gall: lo! polar uplifier {or

Iound Iyatm and Audiphonl ule. It ls deligned to operate
from elther at hie crystal pickups man as microphone-,anfl
into I 10' impedance laud spukar. audlphona hand l'tu or
bath. Haunting hole: are pmvided for I! 35¢an of I
BIB Type inpu firm-forum! for applicatians of low louse
impedunne. ml for mounting I 2816 nun! 001]. to replnoa
Che main Hits! resistant, 817, when improvud fillorin
il rlqulrcd.

ELECTRICAL CHARACTERISTICS

Glln so: Gun

(115 GB if equipped with 615A
input krlnsfnrmer]

Gun Control 40 Aih continuously Variable. with of!
po-ltlou. Parnllelad remote control My
bl uuufl if (haired

Source Impeaanau Crystal plexup or up zo 5 magnum-
resistance

1ncernnl Input 5 museum.
Impedamn-

bond Impedance Nominully 0.9 or 0.5 ohms. Designed ca
apex-nu into slmulunaoua loads of 5 ohms
mm from 1 to 1.30 held sate.

lnurnal Outpuc 35 ohms for «.5 ohm temlnala

Impedance
oueput Power 5 watt: wlth upproxlmuuexy 10% total

harmonin
Ouzput Nolan -20 db (1 ml basis) an snlpped wlcn
an.,15ht,d law frequencies accenuutod

-15 an 1: modified for rlpc low fre-

quency ronpanla
Power Supply 110 - 125 volts, ea cycles, 0.9 amrures,

75 watts maximum. Yuaad wlcn .75; 510

810 Littlcfula

EQUIPMENT CHARACTERIsTICS
nsmeusinmr 17. ltd: (housing), 19" over handles
7" deap (housing), a" over anncrole
9n blah

Wright Approximately 20 lbs.
mounclng Table tyve
Vacuum Tuba: 1 » 6L7, 1- 517a, l-GLBG. l-SYSG
Mum: a... - Black crinkle l-oquer FREQUENCY RESPONSE

cov-r - Blun-grly erlnxle laaquar . ,, _
Cunnnctlona Input and uucpuc ovnnectlon: to screw

cermlnlls under cover. 7/5 holel UK
for conduit termination 1r eealrad
Polar - e- puma: card and plug

11-: (Winn aouaannar cermlnuln
Indie-tad by red paint
mark anarced)

I

90
Unusual from ADD Dhlnl:

REFERENCES and law 5 am

I

GAIN Ill DE

Sonemuclc EEO-716525
Ducu NB-lscoo p. 95 - 101
Iraquancy Respon-e E5-746534

Photugnpha - 90827, 90828. 3820.
90850

shipped wlzn low
trequanclnn unteuulced

70

lo M """.nl~m m
razouzncv IN CVCLES ran com:

OVER