Session 400 wedge problemo

Stu Schulman · Post by **Stu Schulman** » 5 Mar 2006 11:25 am

I am running a session 400 wedge into the P.A.board thru a XLR cable a few times during the night a high pitched squeal"feedback?"sound starts,if I switch the ground on the amp it goes away but soon returns,This only seems to happen for a few minutes,then it's good for the rest of the night.Where I'm playing is in a very old farming town,I was wondering if it is the voltage,I have checked all of my guitar chords,and such???

Ernie Renn · Post by **Ernie Renn** » 5 Mar 2006 5:14 pm

It could be the reverb tank feeding back. I had a Vegas that I had to leave the reverb off and use a rack reverb.

Just a thought...

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My best,
Ernie

www.BuddyEmmons.com

Stu Schulman · Post by **Stu Schulman** » 5 Mar 2006 6:41 pm

ernie:The next time it happens I'll try to grab the reverb knob and see if that does it,thanks,Stu

Mike Brown · Post by **Mike Brown** » 6 Mar 2006 11:20 am

Sounds as if it might be a grounding problem, whether in the cable or the amp.

Stu Schulman · Post by **Stu Schulman** » 6 Mar 2006 11:43 am

Mike:That's kind off what I thought,but I don't enough about this stuff.What I do know is that where I'm playing "Palmer Alaska"is very rural and I assume that the voltage gets very low,and I think that the ground seems to change on it's own?Thanks Mike,take care,Stu