Hi, Just replaced selenium rect.with a 1n4007 diode. About to replace C17 atwo section 20uf @150vdc cap.I'm using two seperate Illinois 22uf @500volt caps. Want to make sure I'm Reading the schematic correctly. First cap: positive side between diode and resistor, negitive side to blue wire and a white wire that goes to bias pots. Second cap ositive side after 1k resistor which goes to ground . negitive side soldered to neg side of cap 1. Thanks.....Rob