Didn't the H7420 , which replaced the H742, use that also? The H742 uses a different one .
On Thu, Jun 6, 2019 at 9:07 AM Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > > 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 >