What would cause noise (ground noise?) when touching the volume control and tone controls?
I have a new preamp that I recently hooked up and I'm getting some interference or what may be ground noise but I only hear it when I'm physically touching the metal volume knob and tone controls. When I touch the metal top of the case in addition to the knobs, the noise will subside. Just looking for ideas to help isolate the cause. I think the case itself just isn't grounded sufficiently.
I have tried new power cables, RCA cables and plugging into different outlets with no change.
@tubeguy76 Since you confirmed that your preamp is a tube preamp, it would be instructive to know what make and model and also the tube compliment that it uses. While a grounding problem is likely, my suggestion about a tube issue is also possible. IMHO,It is a little crazy in this day and age that manufacturer's still have problems with grounding issues! |
@daveyf I'm going to not mention the manufacturer right now until I get a chance to speak with them about it. I don't want to cause any issues for them in case the issue is really mine and not theirs. I did try the cheater plug to remove the ground and the noise was still there so I'm thinking a tube or maybe a bad transformer? We'll see, I'll update the thread as soon as I can. :) |
