Alexandru Balasa Articles

Olivetti Logos 9 Calculator

Olivetti Logos 9 Calculator

The Olivetti Logos 9 Calculator is a rechargeable printing basic calculator. It comes in two versions, a silver and a black version.

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HP-91 92 97 Rebuilt Battery

HP-91 92 97 Rebuilt Battery

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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Commodore SR4148R

Commodore SR4148R

This Commodore SR4148R scientific calculator has been refurbished and its battery has been changed. The calculator works perfectly.

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AC Adapter AC9130A

AC Adapter AC9130A

Fully tested Texas Instruments AC adapter AC9130A. The adapter is used for a number of TI calculators among them SR-16, SR-50A, SR-51A, SR-52, SR-56, TI-2550 II, TI-2550 III (there are others too).

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AC Adapter HP-82087A

AC Adapter HP-82087A

Fully tested AC Adapter HP-82087A. This AC adapter is used for the Spice family of calculators: HP-31 HP-32e HP-33e HP-33c HP-34c HP-37 HP-38e HP-38c. It is 110V only.

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AC Adapter HP-82059B

AC Adapter HP-82059B

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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AC Adapter HP-82026A

AC Adapter HP-82026A

Fully tested AC adapter HP-82026A for the Woodstock family of calculators. It is switchable from 110V to 220V but it only has the US plug.

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