Help with a 38-10 tube issue

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Help with a 38-10 tube issue

Radioroslyn
Phorum Expert

Posts: 7,301
Threads: 269
Joined: Dec 2009
City: Roslyn Pa

06-09-2022, 12:12 PM

Should see about negative 16vdc at pin 5 (control grid). As you get low (moving towards 0 and then positive voltage) in voltage it causes the plate current to rise. If there is positive voltage there it can really haul down some current.

Happy Troubleshooting!

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

Help with a 38-10 tube issue - by Jmeulemans - 06-08-2022, 04:22 PM

RE: Help with a 38-10 tube issue - by RodB - 06-08-2022, 05:30 PM

RE: Help with a 38-10 tube issue - by Jmeulemans - 06-08-2022, 05:42 PM

RE: Help with a 38-10 tube issue - by RodB - 06-08-2022, 09:15 PM

RE: Help with a 38-10 tube issue - by Jmeulemans - 06-09-2022, 11:56 AM

RE: Help with a 38-10 tube issue - by RodB - 06-09-2022, 12:07 PM

RE: Help with a 38-10 tube issue - by Radioroslyn - 06-09-2022, 12:12 PM

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