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AC Power Adapter for HP 67
Post: #1
12-01-2011, 11:24 AM
Phil Hochstetler (Portland, OR, USA) Offline
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I have a mint condition HP 67 that is missing its power supply. Does anyone know where I might find one? I looked on ebay but did not find any for sale. This calculator has not been powered up in 30 years and was only lightly used prior to that time.

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Post: #2
12-01-2011, 11:40 AM
Michael de Estrada Offline
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Just keep in mind that you will also need a good battery pack to operate it safely and that probably the card reader drive wheel will need to be rebuilt.

Edited: 1 Dec 2011, 11:40 a.m.

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Post: #3
12-01-2011, 07:06 PM
Phil Hochstetler (Portland, OR, USA) Offline
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Thanks. I did enough reading on the power supply to realize that if you try to operate it on the AC supply without a working battery, the voltage will rise high enough to damage things. Thanks for the heads up.

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Post: #4
12-01-2011, 07:59 PM
Dan W Offline
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The HP67 uses the same DC power supply as all the Classics. It is the 97 that uses an AC supply.

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