DEC 874D power controller
oldcpu2 at rogerwilco.org
Wed Sep 12 16:28:45 CDT 2007
> Does anyone have the schematic for an 874-D power controller?
> Or better yet, a good used circuit breaker?
Well I don't have a breaker, but at least you can check the
print set for the details. I also recently needed to examine
the schematic, and found it at:
> At least one of the three (ganged) breakers is internally flaky
> and will turn off if the handle is pushed upward all the way to
> "ON" (they work if the handle row is carefully lifted just far
> enough but obviously that is not reliable).
You're right, not very reliable.
> It looks like the (original-type) Heinemann breakers are available
> from Newark, and similar ones from Mouser that will probably fit,
> but they are *very* expensive new...
Well, I haven't checked the prices, but you may find reasonable
success by getting another 874D unit. I just saw one trade hands
on eBay for around $20.
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