Espey Mfg. Co., Inc. 7B Schematic

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Product Information:
Model:7B
Manufacturer:Espey Mfg. Co., Inc.

Schematics Content:

Please note: this content is a computer-generated interpretation of the above schematic and is provided only to help assist you in locating this schematic. For the actual text, please consult the schematic above. Thank you.

Page 1:

300A TRANSFORMERS
BROADCAST R 47 'L_ _ _ IZ_ _ _
LOOP 2200 "
BROADCAST PNoNO INPUT
BROADCAST Oscc'glfon
-_- ANTENNA
f T _ _;- szTcN vIEwED FROM sHAFT END OK
sRowN IN PNoNo POSITION
BAND voLDME
TuNINO coNTRoL N szTcR \ CONTROL Ex POS " pHONO 22 x
2 PILOT LIGHTS POS 3-AM[BC\ 7
c4@~ ANTENNA PADDER TRANSF < T5
'57 'F "@0136 DSC "DJLST TOP vIEw IQ;
TRANS; ~ F RF FM RATIO DET EDR I
a 2NDIF cobgfu 'W RATIO DETI
- TRANSE BOTTOM vIEw
Ios-Izov. sow RECORD WANG" r-N"
BC L09" LINE coRD ,I
@ O PHONo INPUT mms MOTOR UNE CORD v 2.2 MEI
AI A2 sc ANTENNA (EXTERNAL) LINE coRo __

(C)John F. Rider

Page 2:

ESPEY PAGE 17>>S
MODEL 73, Rev.

7AG7 TAG
2 ND I F F M RATIO DET.
TRANSFORMERS TRANSFORMER
_* 3 * R 32 RSI
. w lm" lawn" R 2| look

TOOK

T TONE

PHONO MOTOR

PILOT LIGHTSV

(ON TONE MMF MMF W

|05- IZO V T7 _ 4IFB 707 TAGT 7AH7 7A6 6507 7F7 TCS 7C5 SEAS

TO PHONO INPUT

LINE CORD

VOLTAGE READINGS SHOWN AT SOCKET PRONGS

ARE TO CHASSIS AND ARE

NAL WITH |000 OHM PER VOLT METER. BAND
SWITCH IN FM POSITION FOR ALL TUBES EX~
CEPT 707 WHERE SWITCH IS IN AM (BC) POS-
ITION. LINE VOLTAGE AT I|7 V WHERE NO REAi
IS GIVEN VOLTAGE IS ZERO OR TOO LOW

DING

* THESE CAPACITOWS ARE ENCLOSED
IN EACH CAN a ARE PART OF
EACH COIL.

TAKEN WITH N0 SIG*

iEcoRD climax-ms: seeburg Model K, RCD. cH; 15-2
Seeburg Model L, RCD. CH. 15-18`

Page 3:

PAGE 17-7 , 8 ESPEY

T (C) John F. Rider

BAND*SW\TCH SHOWN
AT 3" POS|TION CLOCKWISE .
BROADCAST BAND

MODEL 7B, RGW'T.
GBAG RF CHOKE 7AH`T
300 n TRANSFORMERS
v REAR FRONT
OF WAFER 0F wAFER
BROADCAST |
i A I LOOP R 7 '
BC ' REAR '5 -_ -_ -_
ANT 0F wAFER ,
BROADCAST I (R)>-
ROADCAST 'a ` OSCILLATOR L _ _ *_
ANTENNA j couL
COIL 3 \ L 5

Page 4:

RATIO DET4

' ZND IF F M RATIO DET. w
' TRANSFORMERS TRANSFORMER ` `
m CATNODES OF 7C7 TUBES

15" POSITION

vogllgE F M BAND y '
JSFORMERS TRANSFORMERS

VOLUME

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