this is the new chassis, soldered transformer wires like the old days, got rid of the solder lug,
this pwr trans had a heater winding CT which was snipped, why not splice a wire on there and use it to kill hum?
so we did, and twisted up some green wires to feed the tubes like the big amps have, no more heater hum,
also got those new plate resistors in there,
and we sound checked some different value caps in the first stage cathode,
found that 1,5 uf sounds better than 25 uf,
also changed pwr supply resistors to the 5F1 Camp circuit, which has the best tone out of all the different versions,