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Re: [looper's] RE: Tube amp HUMMMMMMM...Ground?



Title: [looper's] RE: Tube amp HUMMMMMMM...Ground?
My Ampeg SVT hummed when I got it (used).  Take it to your local tube amp repair man and get it biased.  That cleared everything up for me.  Although, it's ever so slowly starting to go out of whack again, after six months.  But, such is life with tube amps.  I fear the day a tube goes down on stage. 
 
-J
----- Original Message -----
Sent: Tuesday, April 01, 2003 3:48 AM
Subject: [looper's] RE: Tube amp HUMMMMMMM...Ground?

>>we need to thump a brass/copper rod some 18 inches into the ground next to your water or electric main. then soldier a copper cable from the rod to the main housing.<<

I'd be surprised if this is what's making the ampeg hum- there are a number of other things I'd try, like reversing the live and neutral (though consult an electrician before pursuing this). if you do install an earth spike as per the above, one vital part of the instruction is missing. you have to pee on it where it goes into the ground- this will, I promise, guarantee the best electrical connection for it.

duncan.



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