HP71B mains adaptor Message #1 Posted by P.Hart on 5 Sept 2009, 10:54 a.m.
At the back of my HP71B are two sockets for HPIL connectors and another which I presume is for a mains adaptor. Can anyone please inform me what the specification would be for an adaptor?
P.Hart
Re: HP71B mains adaptor Message #2 Posted by Garth Wilson on 5 Sept 2009, 1:27 p.m., in response to message #1 by P.Hart
In the U.S. it's HP number 82059D, the same one that goes to the 82161A tape drive, the thinkjet printer, the 82169A HPIL-to-HPIB converter, and other things. Output is 8VAC.
Re: HP71B mains adaptor Message #3 Posted by P.Hart on 5 Sept 2009, 2:40 p.m., in response to message #2 by Garth Wilson
Thanks Garth. I doubt I could get the HP part. I'm hoping to find out the full spec for an adaptor that I could find elsewhere.
P.
Re: HP71B mains adaptor Message #4 Posted by Katie Wasserman on 5 Sept 2009, 3:38 p.m., in response to message #3 by P.Hart
It's just a transformer, no regulation or rectification at all. Output is rated 8 VAC at 3VA, I measured 12.5 V RMS with no load.
Re: HP71B mains adaptor Message #5 Posted by P.Hart on 5 Sept 2009, 5:01 p.m., in response to message #4 by Katie Wasserman
Thanks Katie, I should be able to find something to that spec.
P.Hart
Re: HP71B mains adaptor Message #6 Posted by Garth Wilson on 6 Sept 2009, 12:48 a.m., in response to message #3 by P.Hart
I was trying to think of a way you could substitute something; but I have never seen that plug outside of the HP equipment. You might have to more-or-less custom-make it, possibly with some Molex pin sockets.
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