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Soemtron ETR Calculators models: 220 222 224 Preview
1 review(s)
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A website for the East German Söemtron ETR range of electronic calculators. Covering the rebuilding of a very badly kept Söemtron 220, this site has circuits, logic diagrams, photos and more information for these increasingly rare early Eastern Bloc electronic calculators.
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Anita Calculator simulators Preview
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Dedicated to the collection and simulation of vintage calculators made at the Sumlock Anita Electronics Ltd. factory in Portsmouth during the 60s and 70s.
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Database of HP-35 Version 1 - Red Dot Preview
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The HP-35 was HP's first pocket calculator. The earliest and the only production version 1 "Red Dot" had a red dot to the right of the power switch that showed when it was turned on. This page contains references to probably most of known and still existing Red Dots. The list will be continuously updated when new information will be gathered.
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Studio 2i Preview
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All things geek, techy and retro. Talking about technology from the past, also my collection of 70's calculators. I am also a Photoshop user, some artwork is on display.
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