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37-630 B+ Ripple
Radioroslyn
Phorum Expert
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Posts: 7,285
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Joined: Dec 2009
City: Roslyn Pa
#4

01-23-2011, 12:21 AM
Don't think the ripple is the problem. You could strap another filter cap across the the input cap in the power supply and see if that lowers the hum level.
You could start pulling tubes out till the hum stops, barring the #80 and the 6F6. This will help you isolate the problem.
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
37-630 B+ Ripple - by AvoJim - 01-20-2011, 08:35 PM
Re: 37-630 B+ Ripple - by 7estatdef - 01-20-2011, 11:41 PM
Re: 37-630 B+ Ripple - by AvoJim - 01-22-2011, 12:58 PM
Re: 37-630 B+ Ripple - by 7estatdef - 01-23-2011, 12:21 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration