I know there are a few people on here who own these amps and thought they may find these helpful.
These were done by a good friend of mine.
They were all done one a JCA22H but the mods are the same on the 50H and 100H/HDM also
Front Panel Channel Switch
Adding A Choke
SLO Clean Channel + Bright Switches
I have this exact amp. Any way to make the clean/crunch footswitchable with an additional master? maybe even with the scoop mod switched in at the same time?