Vintage HP Articles

HP-91 92 97 Rebuilt Battery

HP-91 92 97 Rebuilt Battery

Mar 23, 2021

The HP-91 92 97 Rebuilt Battery 82033A fits the TopCat series of calculators: HP-91, HP-92, HP-97, HP-97S. In addition, some HP peripherals also use this battery: printers HP-82143A and 82162A, cassette tape HP-86161A.

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AC Adapter HP-82059B

AC Adapter HP-82059B

Mar 20, 2021

Fully tested AC adapter HP-82059B. This AC adapter is used for many HP calculators and peripherals, among them HP-41C / CV / CX with rechargeable battery, printer HP-82143A, printer HP-82162A, cassette tape HP-82161A, the TopCat family of calculators (HP-91, 92, 97), HP-71 and HP-75.

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Open a TopCat battery

Open a TopCat battery

Mar 1, 2021

The TopCat battery is fits the HP-91, 92, 97 and 97s series of calculators and a number of peripherals (printers 82143,m 82162, tape reader 82161) and is not designed to be refurbished, it is glued shut. Nevertheless since there are no new batteries to be bought, if you want a battery, you need to refurbish an existing one.

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