Broken Peavey Classic 50? Help!

[jonwdowns]

hello. i just bought a used peavey classic 50 (4 x 10). when i play the amp for more than 10 minutes, it's starts making this terrible sound. It happens very suddenly...i'll be playing and then WAAAAAAAHHHHHHHH, it just starts making this loud buzzing sound and my guitar can not be heard at all. if turn the amp off, and let it relax for a bit, i am able to turn the amp on and use it for another 10 minutes or so...then it happens again. and so on.

is this tube related? is something loose? did i buy a lemon? please help me if you can.

thanks,
jon.

 

[maestro_dmc]

Please, no Cross-threading/Double-posting.

 

[shredfit]

Sounds Like your power tubes went bye bye... replace the tubes and your amp will work again

Shred