01-01-2022, 10:08 PM
Ok so ypu set is a little different then I thought. Your spkr only has the voice coil and field coil connections. It's just like the 41-300. Most of the older sets have the output transformer mounted to the spkr frame and are wired as I described.
You've got 2 hv wires that go to the fc and two wire that go to the vc. Pretty easy. Next step is to use your ohmmeter and measure the resistance from the wire with tracer on the opt (goes to pin 3 on the 42) to pin 2 of each 42. Should see a low resistance like several hundred ohms. If much high the opt is bad.
85 on the schematic is near the ac plug and the off/on switch and the big black thing last pic in the center is it!. If you flip it over and it has a black tar bottom then it hasn't been serviced. Should replace caps and x2 are a good choice.
You've got 2 hv wires that go to the fc and two wire that go to the vc. Pretty easy. Next step is to use your ohmmeter and measure the resistance from the wire with tracer on the opt (goes to pin 3 on the 42) to pin 2 of each 42. Should see a low resistance like several hundred ohms. If much high the opt is bad.
85 on the schematic is near the ac plug and the off/on switch and the big black thing last pic in the center is it!. If you flip it over and it has a black tar bottom then it hasn't been serviced. Should replace caps and x2 are a good choice.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
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