I acquired this previously modified unit, serial 6649027, made in the late 70s. The seller performed three of Adams' recommendations - replacing the molded paper capacitors; the selenium rectifier and the bias filter capacitors. Today, I replaced the can capacitor. Seller advised that all was in good working order at the time of sale, including all of the tubes
. My question is, how to start this up. Do I need to purchase Variac and perform other tests, lest it goes up like a roman candle? Or do I just bias the unit and let 'er rip?
I built a Bottlehead Quickie in the meantime, so I've really got two unproven variables to deal with.
All input (pun intended) is greatly appreciated.