RM9 won't turn on - switch?

My RM9 won't power up. I pulled the bottom covered and didn't see any mainline fuses. Is the switch the likely culprit?

jderimig07-14-2020 7:54pm

newbee Details Discussions Posts This discussion Message User 4,794 posts 07-14-2020 at 08:21pm Copy Comment URL Report Comment Edit Delete I'm not familiar with your amp but there is a good possibility that a failed tube took out a resistor or fuse in the bias circuit.