Ive got an old Diver relay logic type GAE controller on my route. Vertical express said prints are not available. The car isn't canceling calls at the end run, because the LC relay doesn't pick most of the time. The LC relay is 110VDC, only DC relay in the controller, everything else is 115VAC. I've checked every item in the controller, and found this rectifier is bad, it rings open with the meter. I was actually lucky enough to find it in an old dover parts manual. But it is also unavailable. Has anyone ever replaced the old diodes on one of these with new ones? If so what size would you recommend? Im hesitant to attempt to wire in anything new being I don't have a schematic.