hey. my jcm 900 combo just completely cut out. the lights all went off as though no power was getting to it. i tried a different plug and different sockets. would this be the transformer? any help appreciated.
check the fuse.
Sounds like the mains fuse is gone. This would speak to another issue with the amp, possibly the tubes. Fuses don't blow for no reason.
yeah the mains fuse has gone. just got new tubes 2 months ago. could the transformer be faulty?