> -----Original Message----- > From: cctech [mailto:[email protected]] On Behalf Of tony > duell > Sent: 08 February 2016 15:25 > To: General Discussion: On-Topic Posts <[email protected]>; > [email protected]; [email protected] > Subject: RE: The PDP11/04 has landed.. > > > > > I have one of these on my restoration list. I know the PSU does not > > work, and that others have tried to fix it before me, who probably > > know PSUs much better than I do. It has core memory so I really would > > like to get his one fixed. I have never seen a PSU for it come > > available in the UK or Europe, so it looks like it won't be an easy > > job. :-( > > Which mounting box is it? (The 11/04 could certainly come in 5.25" and 10.5" > versions, there may have been several versions of each). The common 10.5" > one, BA11-K IIRC, is a fairly easy supply to work on, it's a big mains > transformer and the DEC switching regulator bricks. > The common 5.25" one, with the H777 PSU, is a bit more nasty, the H777 is a > normal-ish SMPSU. I have worked on both. >
Sadly it is a H777. I have not even opened it up to look at yet. Until recently I was fixing the PSU in my rtVAX 1000 (H7864, in a BA23) and the H7874 from my VAX 4000-500, then I would still like to fix the H7140 from my 11/24, before getting to this one. Regards Rob
