In Reply to: Pulsating Hum in Preamp posted by Pards on January 23, 2006 at 21:09:49:
Motorboating. Common enough to have its own nickname.It could be from a grounding issue, but more likely, it's B+ rail decoupling (you need more/better).
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Follow Ups
- Re: Pulsating Hum in Preamp - Mahatma Kane Jeeves 11:31:08 01/24/06 (0)