anyone know any good sites that help with diy amp troubleshooting?

[capnkid]

The tube amp was making popping sounds and whizzing (up and down oscillating) sounds. I put new tubes in and it seems to have cured the popping, but the whizzing is still there.

 

[jimistone]

The tube amp was making popping sounds and whizzing (up and down oscillating) sounds. I put new tubes in and it seems to have cured the popping, but the whizzing is still there.

what kind of amp is it?

 

[ez_willis]

Is there a tiny little helicopter stuck inside of it?

 

[Doug H]

maybe follow some links from around here

http://www.ax84.com/

 

[Zed10R]

I think you have a ground\radio interference.

 

[capnkid]

what kind of amp is it?

it's a peavey bravo.

 

[capnkid]

I think you have a ground\radio interference.

how could that happen, what causes it.

 

[Lt. Bob]

it's a peavey bravo.

Well there's your problem!

 

[capnkid]

Is the amp next to your computer or something else that could throw some noise into it?

Well, no. But the outlet isn't grounded, I wonder if that is the prob?

 

[ez_willis]

Well, no. But the outlet isn't grounded, I wonder if that is the prob?

If there's no little tiny helicopter in it, it's almost certainly the problem.

 

[soundchaser59]

some possibilities...


http://www.ultimate-guitar.com/forum/

http://www.18watt.com/

http://www.thegearpage.net/board/

http://www.amptone.com/

http://www.torresengineering.com/index.html

 

[capnkid]

Well there's your problem!

Have you ever played one? Made in U.S.A.

It was dubbed "The Stack in a box" because it sound very Marshally.

 

[dementedchord]

one of the things i never understood about peavey's is that they run multiple ground planes.... ie: if you pull the board up and look at it you'll notice that the grounds on the board aren't neccessarily run together.. they only tie together when mounted in the chasis through the stand-offs they're mounted on... make sense???? so if your working on one and you pull the board up you have to use alligatorclip jumpers to tie them together... well what that means for you is that sometimes grounding and interference issuses can be as simple as tightening the board down... at least that's where i would start... good luck...

 

[Lt. Bob]

Have you ever played one? Made in U.S.A.

It was dubbed "The Stack in a box" because it sound very Marshally.

It was a joke man.

 

[JCH]

There's good info here

http://www.geofex.com/ampdbug/ampdebug.htm