THis is the 24-L model it has 3 circuit boards the PC5033 is power the PC5068 for tremolo and PC5066 for EQ there is a quick-connect jumper between the power and preamp boards when i disconnect this jumper it stops blowing fuses. I was going to start testing resistors but seems like might take awhile. THere is one Cap that has what looks like dried silicone caulk around it, I'm assuming this was to stop vibrations or something.
replaced so far: 2 driver transistors and 1 output transistor
Test: removed red wires from filter caps and fuse does not blow
checked bridge rectifier
checked diodes
checked for cold solder joints and shorts on board