Howard,
Download the S-38C manual and the tubes are listed in the SERVICE
PART LIST
page.
V1 is 12SA7 Converter
V2 is 12SG7 IF Amplifier and BFO
V3 12SQ7 or 12SQ7GT/G Detector and audio amplifier
V4 50L6GT Audio output
V5 35Z5GT Rectifier
LM-1 Lamp, dial, type #47
The DjVu reader is required to read the file. If you're running
Linux then the Xreader 4.0.2
will load and display the DjVu file ( I run Linux Mint ).
73
Mike W5RKL
On 10/20/24 10:19 AM, Howard via
groups.io wrote:
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Well, I did it again.... brought home a sad looking S-38C.
?
It isnt in bad shape, all the knobs and parts are there.? It
doesnt play, however.?? I did bring it up on a variac, with a
dim bulb . All I get is a slight hum out og the speaker...
Guessing tome for new filter caps ( no biggie).? In looking at
various schematics, I am finding both? 35z5, 50L6, 12sq7, 12sa7,
12sk7 , and 12sa7 12sk7 , 12sg7 35z5, 50L6 as tube line ups.?
Seeing as mine had a 6sk7 in it (my guess someone had low line
voltage?), I am trying to figure out which line up is correct.
?
Is there an easy way to do this , other than looking at tube
socket wiring (and who knows if mine is correct)??? Any
ideas?????
?
?
Howard
