APF Mark 40

In the mid-1970s, electronic calculators were becoming smaller, more affordable, and gaining widespread popularity beyond scientific and business settings. The APF Mark 40 was one such model aimed at the growing consumer market. Manufactured in 1975 by APF Electronics in New York and made in Japan, this handy calculator measured …

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Anita 810

The Anita 810 was an advanced handheld calculator released in the early 1970s by the Sumlock Comptometer company in the United Kingdom. With its sleek and modern design, the Anita 810 stood out among the bulky calculators of its time. At around 70mm x 120mm x 23mm, the Anita 810 …

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American M-26

The American M-26 was an inexpensive LED calculator that hit the market around 1975-1976. With its all-plastic case and limited functionality, it exemplified the low-end calculators that became widely available to consumers in the mid-1970s. The M-26 had a compact but chunky profile, measuring approximately 63mm x 115mm x 30mm …

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American 1776

The American 1776 is a simple six-digit calculator from the mid-1970s. This calculator was marketed as being “Made in the USA”, with its patriotic name and branding. However, it was likely manufactured by Fantasia Calculator Corp. based in New Jersey. In terms of design, the American 1776 has a compact …

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Alltronic 808

The Alltronic 808 is a simple four-function calculator from the mid-1970s. Manufactured in Singapore, likely by a contract electronics company, the Alltronic 808 exemplifies the transition from discrete transistor logic to integrated circuits in consumer electronics. The Alltronic 808 measures 76 x 137 x 22mm and weighs 92g without batteries. …

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Alcor 888

In the mid-1970s, calculators became more affordable and widely used by students and professionals. Companies raced to produce handheld calculators with basic functions at low costs. One such model was the Alcor 888 introduced in 1975 by Alco Marketing. Design The Alcor 888 featured a simple slab-shaped plastic case typical …

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Ajax 2500

In the early 1970s, the emergence of LED display technology enabled the creation of the first handheld electronic calculators. Companies raced to develop and market these novel devices to consumers and businesses. One such calculator was the Ajax 2500, released around 1974-1975 by the British company Acme Electric. With its …

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Adler 80D

The Adler 80D calculator, also known as the EC 80D, was an early handheld scientific calculator first produced in 1973 or 1974 by the German company T.A Vertriebs. Although largely forgotten today, the Adler 80D was an impressive and substantial machine for its time. The Adler 80D had a uniquely …

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Adler 80C

The Adler 80C is an early handheld calculator from the 1970s. Manufactured in Germany by TA Vertriebs GmbH, it featured advanced technology for its time. Design The Adler 80C has an unusual and aesthetically pleasing design. The metal body slides down to reveal the battery compartment, and has pronounced ridges …

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Accuron Executive

In the 1970s, electronic calculators became widely available and affordable for the average consumer. Companies competed to make their calculators stand out with innovative designs and features. One such calculator was the Accuron Executive, a stylish model aimed at the “handbag market.” The Accuron Executive was a compact, lightweight calculator …

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