PDP-11/10 PSU Repair/Warning

[systems_glitch]

I believe the big difference was in the current-supplying capability on the
+15V rail -- 1A vs. 4A. I haven't had to dig into a 5409730 though, and
haven't looked through the print sets. I believe it was mentioned as an
upgrade thing in one of the technical manuals I'd read some time ago.

It would be easy to make up a new harness to swap one in place of the
other, since the 5411086 goes to a Mate-n-Lok that plugs into the power
distribution board.

Thanks,
Jonathan

On Thu, Jun 6, 2019 at 2:17 PM Noel Chiappa via cctalk <
cctalk at classiccmp.org> wrote:

>     > From: Paul Anderson
>
>     >> (I also should check to see if the H742 uses the same 15V board; it
>     >> uses the same 'bricks', so it may.)
>
>     > Didn't the H7420 , which replaced the H742, use that also? The H742
> uses
>     > a different one .
>
> Oooh, good catch! The H742 uses a 5409730, but the H7420 does use the
> 5411086,
> the same as in the H765. I always wondered what the difference was between
> the
> H742 and H7420.
>
> I wonder if the two boards (and thus the the power harness) have an
> identical
> pinout, or not.
>
>         Noel
>