Anyone know where I can get the schematic for a Pro Amp 5E5-B? All I can find on the net is 5E5-A. I'm trying to restore the amp back to it's original state. Someone had converted it to a Marshall type circuit. They put in EL34 power tubes and all 12AX7 preamp tubes. Alot of the components differ from the 5E5-A schematic I compared it too, even components in the preamp. Thanks.