I bought a broken one on ebay for pretty cheap and it is pretty broken. I bought a new input board from Hoppe's brain but the output transistors are destroyed so I will be replacing them. The input board was recapped at some point, but I am going to replace the input board just as a matter of getting all of my amps up to a standard configuration as I go through them. I also plan to implement the various tricks I have dug up on the forums and hope to improve their sound quality a bit along the way. I am not unhappy with them, but while I have the iron out I might as well.
Do people move the DC rail fuses internal on this amp like the old 555? If so what do you suggest for fuse holders? It looks like I could save some wire length, and one of the rail fuse holders is wrecked already.