I got frustrated at the ever-increasing out of stock inventory of rectifiers and substituted 70-amp silicon stud rectifiers.
The even more ancient ferro resonant converter rising voltage issue now costs $200+ to replace the computer type capacitors.
The CHEAPEST way to go (because this rig seems to be a power pole princess) is the 400-series Megawatt. Chop AC power to the Magnatek and reconnect the Megawatt AC input terminals. Extend Megawatt 12 vac power outlet to original fuse panel 12vdc power inlet.
For permanent PPPrincess duty set voltage at 13.5
Sixty bucks and it's an infinitely better system than the original.
Clean battery terminals. PAINT positive terminal and nearby battery case RED.
Do the negative with GREEN.
Then spray anti corrosion coating over everything.
If the battery sees cycling duty the above will not work. Use a modern converter.
