#Canon

CANON CANOLA L100A – Planar display calculator

In the early 1970s, the Japanese company CANON mainly produced professional office calculators. Their quality was really high, after all, at that time the Japanese specialized primarily in industrial equipment, whose workmanship is by definition better compared to consumer devices.

A forgotten type of integrated circuits
Inside one of my retro treats, the Soviet calculator Электроника МК-52, about which I have already prepared an article“Электроника МК-52 - Soviet calculator in orbit”, as well as in some respects its twin design Электроника МК-61, one can find rather mysterious-looking integrated circuits.
Dark current and transistors without a case
If one Internet trivia site is to be believed, the most manufactured thing in the world is a transistor. This may be true, but the authors of this information must have also taken into account those placed inside silicon cores, although they are not single elements. After all, in discrete circuits there are at least two resistors per single transistor, also the Internet fact can be questioned quite easily. However, whatever one may say, transistors in one form or another are quite common in electronics. It is thanks to them that a whole branch of digital and logic circuits was created, which, along with increasing computerization, have become the building blocks of the modern world.
Soviet VFD lamp controller
Some time ago on one of the popular auction sites I noticed a rather interesting offer. It was a module of unknown origin with a small VFD lamp, which I suspect was the seller’s main motivation to get rid of it. After all, fluorescent designs sell quite well, though not as well as Nixie lamps. …
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PRIVILEG Modell 802 – Calculator from the former West Germany
During the communist era, the dream of many people was to own electronic equipment from the West. Acquiring the coveted computer equipment was downright impossible, but equipment such as calculators and audio systems were somehow obtainable. Today we will take a closer look at one such design. The Privileg Modell 802, as it is referred …
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In search of the perfect electric voltage
When taking DC voltage measurements with a multimeter, we usually don’t think about its accuracy. Receiving a result of 5.1V, when we expect something in the neighborhood of 5V, we assume that the multimeter’s indication is correct, telling ourselves that simply at the output of the power supply or the USB port of the computer …
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