Western electric 70 a schematic
This is the 1 pages manual for western electric 70 a schematic.
Read or download the pdf for free.
If you want to contribute, please mail your pdfs to info@audioservicemanuals.com.
Page: 1 / 1
Extracted text from western electric 70 a schematic (Ocr-read)
Page 1
Wmtlemic Company
No.70-A AMPLIFIER
Ma 252A m 205:
VACUUM TUBE VACUUM Tunis
VI
z I I 2
1
LI L2 {1 5'
L I.
T- T-
JZ 13
12 IO L33 no w 0 so
mo Io +350
vous vans lsvous
Fig. 1-Schematz'c Diagram of No. 70A Amplifier
TERMINAL NUMBERS AND CONNECTIONS FOR NO. 70A AMPLIFIER
Terminal Numbers External Connection
1 and 3 10 volts AC
2 Not used
4 and 6 4.5 volts AC
5 Not used
7 and 8 Output
9 Center Lap of 4.5»volt-AC source
10 and 11 Input
J Negative-350 volts DC,
12 Center tsp of 10»volt-AC source; and
l Ground
13 Positive, 350 volts DC
56-