In Reply to: RE: Hum Trackdown posted by DannyR on July 5, 2016 at 19:43:07:
It is not your tubes. When it is quiet with the inputs shorted, your amp is quiet electrically. However, you have a grounding issue. Really check how the RCA input grounds are routed inside the amp compared to how they were before the mod. Check grounds of any shielded wire in the amp. Try taking a piece of wire and touch the amp chassis to another component. Tracking down this type of ground issue is tricky but you will find it.
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Follow Ups
- When the inputs are shorted the amp is dead silent. (great!) - Chip647 06:03:59 07/06/16 (3)
- RE: When the inputs are shorted the amp is dead silent. (great!) - DannyR 12:56:00 07/06/16 (2)
- "I've tried countless sources." - Triode_Kingdom 13:10:05 07/10/16 (1)
- RE: "I've tried countless sources." - DannyR 22:54:42 07/11/16 (0)