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Stats...
| <9/ 1981 |
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6.5 in. x
8 in. x
3 in.
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| 100 rubles
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| AC 220V 50Hz
desktop
12 digit
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Display
| Green fluorescent
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Factories...
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Elektronika MK-42
My machine is an Elektronika MK-42, a four function 6.5 x 8.5 x 3 inch
calculator needing 220 V 50 Hz current. It is a small desktop model with
green fluorescent display, 12 digit capacity and interesting design. I
bought it and an Elektronika MK-51 in Tallinn last summer.
I compared it with my western 12
digit calculators (Olympia CD 102, Toshiba, Aurora) but did not find very
weird features except the vague feeling when touching the keyboard. It does
not, however, have the apostrophes to separate the thousands as its western
counterparts. When using the 2 digit accuracy it rounds the result as does
Olympia but not Toshiba nor Aurora which only truncate. It is even more accurate than some western calculators when computing in 2 decimals. The negative sign lies at the right.
It does not have scientific notation.
In far left there is one place for error or memory information (from top to
bottom: dot / horizontal bar / vertical bar) but it does not work. I think
that it must be defective for this reason even if I have found no defects
in calculations.
Buttons: CM M+ M- RM / x - + % 1/x +/- = C [display of
preceding input] and of course the digits and the decimal point.
Switch: full 12 digit accuracy / fixed 2 decimal accuracy
- Timo Leipala
© Timo Leipala
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