6 Jun
2019
6 Jun
'19
7:07 a.m.
From: Systems Glitch
I finally fixed the power supply in my PDP-11/10S ...
For those who
have original 5411086s that haven't failed yet, you might want to
make up a little pigtail with an inline fuse holder.
Congratulations, and a great blog write-up.
The issue you point out (lack of fusing for some components on the +15V
board) will of course apply to not just -11/10S's, but any -11 which uses
the H765, either for the CPU box (e.g. /04, /34) or for an expansion box.
This is important enough that I think I'll add a writeup to the CHWiki
article for that:
http://gunkies.org/wiki/H765_Power_System
which restates the problem, and the proposed solution. (I also should check
to see if the H742 uses the same 15V board; it uses the same 'bricks', so
it may.)
Noel