|AC-4 Top View|
Installed the 'Heathkit Shop' power supply board today and got it working on the AC-4. I followed the directions as well as I could but had to put the board on the 'wrong' side of the transformer because that was the way the screws were installed in the transformer. The board fits but it is closer to the end of the chassis as there is more room on the other side. Also the wire kit does not really fit when the board is on the opposite side. It works find and the AC ripple is now lower.