vengence

i have a carvin x-100b tube amp the power supply is shot i need to replace it but i cant seem to find any markings on the old one how do i know what one to replace it with please help would you know what power supply would work in this amp my band will be giging in a few short weeks and i need to fix this problem thank you very much Steve

hey thanks for the help i have another question can i replace a filter cap with one with different values cause im having a hard time finding the right ones for my amp the ones in it now are 40uf/40uf/20uf/20uf-----500vdc what if any other could i replace these with

hi i just recently picked up a carvin x-100 head for 25 bucks that just hummed i figured it would be an easy fix but now im stumped i have clean sound if i run just through the power amp but hooked up through the pre-amp it just hums its driving me crazy ive tried 3 sets of preamp tubes checked the filter caps and tested the resistors and caps in the pre amp i was told recently that the guy i got the amp from had it checked out and they said there was a power supply problem the power wasent distributing right through the amp is it possible that the power supply is shot and is there any thing else that could cause this problem thanks Steve