In Reply to: Ampeg SVT4 pro hum posted by henrybasstardo on August 6, 2009 at 15:27:56:
I have never personally witnessed a tube causing 60cycle hum
I have witnessed and experienced a bad 1/4 input jack/solder connections
causing this
I have witnessed and experienced bass players with a bad instrument
cable going to the input
If he has nothing plugged into the head is it quiet?
Does this hum only occur if he runs a line out /xlr to a sound system?
Does he had a ground defeat switch?
I would suggest looking in other places other then the tubes for this
issue
However, its always a good idea to pull all of the tubes and them
tested and also reseating all the tubes is always helpful
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Ampeg SVT4 pro hum - Pro Sound Guy 11:00:27 08/07/09 (3)
- RE: Ampeg SVT4 pro hum - FenderLover 05:37:25 08/08/09 (2)
- RE: Ampeg SVT4 pro hum - Pro Sound Guy 12:57:15 08/10/09 (1)
- RE: Ampeg SVT4 pro hum - FenderLover 04:40:41 08/14/09 (0)