Tube Amps / Music Electronics
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|previous: Rob P Hi all,||View Thread|
|5/30/2000 11:57 AM|
|Bob Isaacson||Re: What to do about my humming amp?|
Does the hum also disapear when you plug your guitar into the preamp input jack? If so, then the jack contact on tip side may not be shorting to ground when the plug is removed,thus causing hum. Cleaning or replacing the jack would solve the problem.
Another cause, as you mentioned could be a bad or loose filter cap in the preamp power supply. Also look for any loose ground connections.
|Rob P Thanks Bob,|