Электроника МК-61
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Микрокалькулятор Электроника МК-61
Elektronika Microcalculator MK-61
- Type: Programmable RPN Electronic Calculator
- Size: 3 x 6 inches / 9 x 15 cm
- Serial number: 265548
- Date of Manufacture: December 1989
With vinyl case, manual and 220-volt AC adapter for European sockets.
The best calculator 85 rubles could buy the young scientist or engineer. 105 program steps, 14 general purpose registers, 4-level stack. This unit comes from the same development stream that brought us the MK-56. The MK-61 adds sexagesimal conversions, integer/fractional part, absolute value/signum and bitwise logical operations (AND, OR, XOR and NOT). It even has a random number generator, er, that is (if I'm reading this correctly) a "generator of pseudoaccidental numbers". Or maybe it's "pseudocasual". Well, see for yourself: Original Text, machine translation, What I got out of the machine translation. And, last-but-not-least, the obligatory dice rolling program.
The unit runs on 3 AA batteries, which was a great relief. The keyboard faceplace may well be from a different model of calculator. While the holes for the keys fit, someone went in by hand and cut slots for the slide switches (and kinda missed). Maybe there was some variation in switch placement, and the assembler didn't know what he was going to get until the last minute. Shrug.
Manufactured by Квасар (Quasar) Factory
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Schematic Diagram: Left side | Right side
