Popping amp when turning off :(

[TS808]

while I'm at it I got a question of my own....
WHen I'm in my room with the telephone I can hear the numbers dialing through my amp. whats up with that?

It's a speaker phone!!

Seriously, every once in a while with certain amps (especially solid states for some reason), I used to hear the radio being picked up too through the amp. Not sure why that happens, but it can happen once in a while.

[Duff]

My new Delta Blues, Peavey, pops lately when I turn it off. I checked everything I could think of but you guys, as usual, have given me some more things to check. I have a fan plugged into the same power strip. Might be related.

My gut feeling is that it is a ground problem of some sort.

Probably should check it on a dedicated grounded extension cord before taking it in for warranty repair, if covered under the warranty.

Duff

My cell phone always chirps thru my tube amps every time the system checks in with the phone but the phone is within four feet of the amp and inches of the guitar cable.

[Spudman***]

My new Delta Blues, Peavey, pops lately when I turn it off. I checked everything I could think of but you guys, as usual, have given me some more things to check.

My gut feeling is that it is a ground problem of some sort.

They all do that. Usually switching to a different channel will keep the pop to a minimum. I'm not sure which channel is the culprit. It's either that or try turning down the reverb before turning it off. It's just a characteristic of those Peavey tube amphs.

[Duff]

Great to know Spud. I won't worry about bringing it in for service.

However, I have noticed a buzz coming from the amp, especially on lower notes, any volume.

When I press against the magnet it stops. So I braced the magnet with some pressure with some wood and wood shims. Totally buzzless.

First, before solving the prob with the cob job, I tightened all of the speaker nuts inside the cab. No change.

Maybe I should take off the grill and see what I find. I suspect a gasket or loose bolts holding on the electronics components box that the transformers are attached to and the tubes come out of.

I'm thinking there are securing screws inside the front behind the grill cover that I can tighten up.

This, however, does not explain why pressure on the magnet from bottom toward the top would do anything other that to put pressure outward on the speaker mounting board that the electronics control box is screwed onto, possibly taking up enought slack to stop the vibrating that causes the buzzing.

Duff

Probably should make this a new thread.

[ShortBuSX]

Sounds like your speaker baffle, you could probably snug that up on the sides of the amp(those screws)...or you may even have tube rattle, its not that uncommon among tube amps with some decent low end.