Abatron 803

The Abatron 803 is an early handheld calculator from around 1974. Manufactured by Business Electronics Ltd in England, it features a sleek, unique design and provides basic four-function calculations. Specifications The Abatron 803 measures 75mm x 148mm x 19mm and weighs 132g without batteries. It is powered by two AA …

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Sinclair Cambridge Programmable

In the early 1970s, electronic calculators were just starting to become affordable and portable. Many companies rushed to bring these revolutionary devices to consumers and professionals alike. In 1973, British consumer electronics company Sinclair Radionics made a splash when they released the pocket-sized Sinclair Cambridge calculator. The original Cambridge performed …

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Olivetti Logos 9

In 1980, the Olivetti Logos 9 printing calculator was a major technological breakthrough. Though just a bit larger than a cigarette pack, the Logos 9 had advanced features making it the most sophisticated compact printing calculator in the world at the time. Innovative Design The Olivetti Logos 9 introduced several …

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Casio FX-702P

The Casio FX-702P calculator, or pocket computer as some call it, was manufactured from 1981 until 1984.  It uses 2 CR-2032 lithium batteries and has an interface for the FP-10 thermal printer and FA-2 compact cassette interface.  It has a single line, dot matrix, 20 digit, liquid crystal display and …

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HP-15C

The HP-15C calculator was produced by Hewlett-Packard from 1982 until it was discontinued in 1989. It had an original MSRP of $134.99. The 15C was part of HP’s Voyager line of calculators that began in 1981. The Voyager line, including the 15C, are all programmable calculators and use Reverse Polish …

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HP 35

This HP 35 was the first scientific pocket calculator and was introduced in 1972.  It stayed in production until 1975 and retailed at a price of $395.00. The 35 was allegedly a hack by an HP engineer of the HP 9100 which was a large desktop calculator with a price …

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Olivetti Divisumma 18

Wow, this is one strange looking calculator! Some might call it stylish.  In fact, in 1972 when it was introduced by Olivetti, it WAS stylish.  It’s the Olivetti Divisumma 18 and is the wild creation of Mario Bellini one of the creative designers at the company at the time. It’s …

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HP 65

This fairly hard to find Hewlett Packard made HP 65 calculator was produced from 1974 up until 1977 and retailed for $795.00.  It was HP’s first programmable pocket calculator and had a built in magnetic card reader – writer.  It featured a single line red LED display and used RPN …

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Texas Instruments Exactra 19

This Exactra 19 was part of the Exactra series that was manufactured by Texas Instruments though you wouldn’t know it by looking at the front of the calculator. For some reasons, possibly marketing, TI decided to place their only identifying mark on the back cover in small lettering.  The Exactra …

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Sanyo ICC-808D

This is a very rare Sanyo ICC-808D calculator. As you can see it utilizes nixie tubes (gas discharge tubes) for the display. It uses algebraic logic, has 4 functions and 18 keys. It was made in 1972 and has a level of popularity based not upon its calculating abilities nor …

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