HP Forum Archive 17

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Correct VAC Output for HP-97 AC Adapter? Message #1 Posted by Dan W on 29 May 2007, 9:22 p.m. I have an HP-97 but no AC Adapter/Charger. So I'll probably make one. I am not sure of the correct output voltage. The HP Museum says 8 VAC, but the Service Manual says it is 12.8 VAC (Section 2-42 pg 2-5). Can someone with an adapter perhaps measure it for me and tell me what it really is? Thanks -- Dan W.

Re: Correct VAC Output for HP-97 AC Adapter? Message #2 Posted by Les Wright on 29 May 2007, 9:44 p.m., in response to message #1 by Dan W I don't have a voltmeter, but I have three 82059 adapters. The all have engraved on them 8VAC 3W MAX. Does this help?

Re: Correct VAC Output for HP-97 AC Adapter? Message #3 Posted by Egan Ford on 29 May 2007, 11:50 p.m., in response to message #1 by Dan W I have the same adapter as Les. Printed is 8 VAC. However I measured the output as 12.7 VAC. Hope this helps.

Re: Correct VAC Output for HP-97 AC Adapter? Message #4 Posted by db (martinez, ca.) on 30 May 2007, 12:31 a.m., in response to message #3 by Egan Ford Egan: Your 12vdc would be the unloaded value. In series with a battery it would probably be more like the nominal 8vdc. Dan: Making that plug is going to be a drag. I have a spare. Do you live near me? Edited: 30 May 2007, 12:31 a.m.

Re: Correct VAC Output for HP-97 AC Adapter? Message #5 Posted by Dan W on 30 May 2007, 1:24 a.m., in response to message #4 by db (martinez, ca.) I live in Phoenix AZ. A bit of a drive. Would you be willing to sell one?

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