DEC 874D power controller

[J Blaser]

Charles said:

 > 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:

http://www.vt100.net/manx/details/1,3467

 > 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.

- Jared