I'm gathering parts for a 6550 Clementine , and have on hand two Hammond output transformers 1627SE trans that are 2.5 k ohm 30 watts , 16,8 and 4 ohms out with an ultra linear winding , a peerless power transformer with HV winding 425-375-0-375-425 , 5volt 4 amp 6.3V at 5 amps ,2.5 volt 5 amp. I believe i will use two 5V4 for rectifiers and two chokes 7 Henries 140ohm at 130 Ma to ha a PS for each channel
What type of changes will i have to make to the board if the B+ is about 500 volts or so to the 6550's .
Mark