Peavey 5150 combo problem. Please Help Me.

[nye]

Hello, I need some tips and sings to repair the Peavey 5150 combo. The problem is that it after several minutes of correct operation, it crack the same vacum tube.
I need your help
thanks,

Arturo from Italy

[pstring]

Hey Arturo, I don't know if you mean the vacum tube is blowing or cracking the glass tube, but you have a serious problem their my friend and we can't fix it over the internet, so I suggest two things, 1. Do not use the amp or even power it up, you could do farther damage, 2. You need to find a shop or repairman that knows how to repair your amp and get it fixed. OK....................