Semi-OT: Power supplies

From: <(>
Date: Wed Apr 10 23:59:22 2002

I am looking for some sort of service manual or something on two Power
supplies I picked up yesterday at Purdue Salvage. The first one is a HP
711A 'adjustable AC/DC power supply', which is fairly old and tube-based.
After plugging it in, nothing happens - no filaments light up, etc. I
haven't had time to go through and 'probe' it to see if the transformer
is still OK yet, that's my next step. If anyone has any info on it, please
drop me a line. BTW I've checked the fuse.

The second one is fairly new - a HC Power Model HC10-1A switching 5V,
200A power supply. I think it was manufactured in 1992, making it 'just
classic' as far as electronics go. I've taken it apart, and the line-side
smoother caps are charging up, so I'm guessing a control problem. I'm
going to try and contact Power-One (they aparently bought out HC Power)
tomorrow to try and get info on it. I would really like to get this
working so that I could try and use it for my new SSI/MSI (perhaps a few
PALs if necessary) minicomputer I'm designing. [Aside: If they'd only
give me some sort of course credit towards my BSCompE for doing this, I'd
be really happy.]

-- Pat
Received on Wed Apr 10 2002 - 23:59:22 BST

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