In Reply to: Can a bad tube cause low frequency oscillation? (nt) posted by Nickel Core on November 10, 2014 at 08:26:26:
Plug a good tube in and see.Lots of things can cause oscillations, anything is possible. Bad coupling caps can do it. You may have installed a new leaking cap. Try replacing your grid choke with a resistor to see if it fixes it. If it does, you may have created an oscillator.
Edits: 11/10/14
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Follow Ups
- RE: Can a bad tube cause low frequency oscillation? (nt) - Chip647 08:45:25 11/10/14 (1)
- crap... (nt) - Nickel Core 08:51:32 11/10/14 (0)