Just had a friend bring over this amp. The amp needs new capacitors. I have never seen a capacitor with 4 pins. 3 are used on each of the caps. I was thinking of replacing with 8 x 220uf@450V. Just wondering if anyone has installed their own cap bank instead of say using the Harbach Kit. I know it uses a full wave doubler circuit. Just wondering if anyone could tell me how to tell what the various pins are for on capacitor.