I'll have to post some pics. Trying to resurrect an old AC30. Not that old, is the SS rectifier one. Horrible hum, and pots/parts replaced prior... ...I'm trying to sort it all out here. For now, this is where I'm at... voltages are +-10/20 percent, in spec. vib/trem vol and brillant vol effect hum and normal volume and playibility. thinking channel caps resistors/wiring fault... the service manuals that i bought years ago are worthless. none show wiring layout... any help appreciated.