I need help with Vox Cambridge Amp

Thread Starter

Davesintexas

Joined Aug 8, 2019
1
I replaced the octo and all of the caps on this amp further the MOSFET and several resistors. The problem I’m having is that at first the amp played crazy loud at 2-3 and then got scratchy and noise over 2,3 level. Now, when I try to turn the amp on using a Variac I can’t get past 10 volts before it starts a loud hum! No fuse pop and no smoke. But seems R94 and R115 show heat color on the board. Not much but some. I’ve also replaced the tube socket as well.

Can someone give me some help I’m lost.
 
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