The Rectifier Board:
(old one left shown upside down)
I am not sure if this original one worked or not, but it looks bad on both sides. I decided to not use it at all since the game had been sitting for many years anyway. The solder is bubbling and falling off the reverse. As you can see, someone used aluminum foil instead of fuses to compensate for a failing board. It's a nightmare.
I made an adjustable shelf that hooks onto the siderails to work in the cab and under the playfield (Total cost $5.89). It has a recessed holder for loose parts.
In order to avoid any mistakes, I cut one wire at a time to transfer to the new replacement Rectifier board from Great Plains Electronics. There are some improvements from the old one with how it handles heat, and its grounding. The heatsinks no longer connect to the plate at the rear.
Shown below is the front side of the new board, showing the updated heatsink design, and a grounding post on the lower right corner.
