Seeking H7861 Power Supply (PDP 11/23+)

Jacob Ritorto jacob.ritorto at
Mon Apr 6 23:32:20 CDT 2015

coupla questions as an aside on this subject:

1) Which PS is more available on commodity market?

2) Assuming H7681, do you know how to wire a chassis that expects H768 to
work with H7681?  Or vice versa?

3) How can we make what we have on hand work for a long time?

Bonus 4) Is there a commodity setup available to replace this analog kit
entirely with new stuff?  (probably a new thread)

On Tue, Apr 7, 2015 at 12:21 AM, Noel Chiappa <jnc at>

>     > From: Cory Heisterkamp
>     > If someone has one for sale (this one marked H7861), please let me
>     > know.
> Someone on eBay is selling one:
> They are asking $125, which is not wholly ridiculous, and will probably
> take
> slightly less. I've bought several from this seller, and they are in good
> shape.
> Also, at a pinch, I'm pretty sure (as in, I have looked at both closely,
> and
> verified that they have the same interfaces and physical dimensions, etc,
> so I
> think this will work, but I have yet to actually try it) an H786 would also
> work in that system. The only difference I know of is that the H7861 puts
> out
> a few more amps of +5V. No reasonably priced H786's on eBay at the moment,
> though.
>     > It looks serviceable and is likely repairable by an expert so that
>     > could be an option, too.
> I'd interested in buying the dead one from you (which should help offset
> the
> cost if you go for the eBay one) - please contact me off line if
> interested.
>         Noel

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