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From: pda@rsiatl.UUCP (Paul D. Anderson)
Newsgroups: comp.sys.dec,misc.wanted,rec.ham-radio,sci.electronics,vmsnet.misc
Subject: Wntd: Schem. for DEC H7100A pwr sply
Message-ID: <3225@rsiatl.UUCP>
Date: 16 Jul 90 03:00:11 GMT
Reply-To: pda@rsiatl.UUCP (Paul D. Anderson)
Followup-To: misc.wanted
Distribution: na
Organization: Radiation Systems, Inc. (a thinktank, motorcycle, car and gun works facility)
Lines: 19

I have obtained 2 Digital H7100A power supplies (100A @ 5v) that I am
planning on using to build a UPS.  One of the steps involves raising
the switching supply to provide about 6.5 volts.

After going over the hardware for some hours, I have been unable to 
ascertain where the overvoltage circuit is located, although I have been
able to get the voltage up to 5.8 volts- almost there, but not quite
enough.

Does anyone have a schematic on this supply that they could coach me
with or would be willing to part with (or perhaps a photocopy).  
Or maybe you have done this and might could tell me a trick about 
the hardware.  If you could, please email me.  I'd sure appreciate it.  

Thanks,
-paul
-- 
* Paul Anderson * Crossroads Computing * (404) 565-0761 * emory!rsiatl!pda * 
              "SCCS: The condom of promiscuous programmers"