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Stats...
| 1972
1/ 1980 |
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400mm
380mm
125mm
15kg
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| ?
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| AC 220V, 50Hz, 50W
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Display
| 16 Nixie Tubes
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Iskra 122 
The Iskra 122 was the second calculator in a series of scientific calculators 12x
series. In addition to the capabilities of the Iskra 121, in the calculator Iskra
122 are seen three additional registers of memory (total - 5), key of discarding of a fractional part of number and key with brackets for calculation of complex expressions.
The internals. The two columns of keys on the left operate the 5 memory registers.
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How to Calculate
Iskra 122, 123, 124: calculators have algebraic logic
(a + b) * c + d * e = [ ( ] a [+] b [ ) ] [X] c [+] d [X] e [=]
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