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Wanted: HP-97 power adapter
01-04-2021, 01:02 PM
Post: #1
Wanted: HP-97 power adapter
Or, alternatively, just the connector to the 97 or a pointer where to buy such a connector.

I'm located in Germany.

regards,
chris
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01-04-2021, 05:28 PM
Post: #2
RE: Wanted: HP-97 power adapter
For Europe look for HP 82066B charger. It fits several devices.
Be prepared it isn't a very cheap part.
Andi
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01-06-2021, 03:10 PM (This post was last modified: 01-06-2021 03:13 PM by pamphonica.)
Post: #3
RE: Wanted: HP-97 power adapter
Hi Chris, I had the same issue. Due to our UK lockdown I just finished designing and 3D printing the "unobtainium" power plugs for my HP-75 and HP-71. They are presumably the same as for your HP-97.
If you contact me I'll either send you the STL file to print, or a ready made-up lead to add to any small 8Vac transformer. The transformer must be small (about 3.5VA), so the poor regulation makes sure the on-load voltage to the calculator is kept low.
The plugs use the TE 350417-1 .093" female crimp connectors available from Farnell in small quantities. These connectors are a perfect fit - just like the originals.
regards, Jeremy
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01-07-2021, 04:47 PM
Post: #4
RE: Wanted: HP-97 power adapter
Hi Jeremy,

I'd be interested in two prebuilt plugs.

regards,
chris
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01-09-2021, 05:33 PM
Post: #5
RE: Wanted: HP-97 power adapter
Hi Chris, did you get my email? I'm happy to make you up a couple of cables with connectors. Drop me a line via PM or email.
-Jeremy
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01-12-2021, 08:12 PM
Post: #6
RE: Wanted: HP-97 power adapter
(01-09-2021 05:33 PM)pamphonica Wrote:  Hi Chris, did you get my email?

I've sent you an answer in PM...

regards,
chris
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01-12-2021, 11:57 PM
Post: #7
RE: Wanted: HP-97 power adapter
I have a 82067B (UK 220VAC) charger for HP97, etc that I picked up in a collection. Being in the US, I cannot use. The plug on the end looks to be UK. It is removeable and could be replaced with the EU plug...

Given the Happy New Year, I'm willing to send for cost of shipping.

Adam
MainelyCalculators.com
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01-13-2021, 02:01 PM
Post: #8
RE: Wanted: HP-97 power adapter
Thanks aj04062,
but I have that one already (found it in the meanwhile).

The 97 doesn't work with it. Could be because the battery is old and/or that the adapter is specifed 240V while we have 230V over here.

regards,
chris
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01-13-2021, 03:21 PM
Post: #9
RE: Wanted: HP-97 power adapter
I have had to re-build every single battery pack for HP calculator devices bought in the last year. That's about 8 packs so far - a good use of lockdown time! None of the original battery packs was working properly. Some had leaked and were completely dead. Others had just lost the ability to hold charge.
-Jeremy
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01-13-2021, 08:05 PM
Post: #10
RE: Wanted: HP-97 power adapter
(01-13-2021 02:01 PM)hpchris Wrote:  Thanks aj04062,
but I have that one already (found it in the meanwhile).

The 97 doesn't work with it. Could be because the battery is old and/or that the adapter is specifed 240V while we have 230V over here.

regards,
chris

Even if some calculator's mains adapter from the 70's support 220 V or 240 V I don't think this is of relevance.
220, 230, 235 or 240 V in my opinion doesn't matter
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01-13-2021, 08:09 PM
Post: #11
RE: Wanted: HP-97 power adapter
You probably are right.

I'm currently rebuilding the battery/accu...
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