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Nothing but slight hum from 37-620
Radioroslyn
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Posts: 7,294
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#2

01-08-2011, 10:20 PM
Well think your not passing any signal though your IF stage. The easiest way to check the IF is to use a signal generator. If you don't have one the other things to check would be the resistance across the IF transformers windings to make sure you don't have an open one, check the plate, cathode, and screen grid voltage at the 6K7 IF tube,and check the plate voltage on the 6A8 mixer. I have the same set here. Haven't gotten round to working on it. It needs some major cabinet work , top veneer is shot. Chassis is good and clean but someone cleaned the dial so got to order a new one for it.
Terry
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!

Terry
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Messages In This Thread
Nothing but slight hum from 37-620 - by audin - 01-08-2011, 09:20 PM
Re: Nothing but slight hum from 37-620 - by 7estatdef - 01-08-2011, 10:20 PM
Re: Nothing but slight hum from 37-620 - by audin - 01-09-2011, 12:30 AM
Re: Nothing but slight hum from 37-620 - by audin - 01-09-2011, 09:21 PM



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