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Stats...
| 5/ 1983
1993 |
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78mm x
128mm x
9mm
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| 64 roubles
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| 1 x button cell
CR-2325
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Display
| Handheld Scientific
LCD 7 segment 8+1 digit display
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Factories...
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© Sergei Frolov
 Early variant
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 Later variant
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I have two versions of this calculator. The one shown here does not work. The LCD display is cracked and water-damaged. The calculator was sent to me from Chicago by my friend Vlad, who is performing research work at a University there. Vlad's wife and child recently visited him, carrying two calculators in their luggage. So, this one joins the list of 'smuggled' calcualtors in my collection.
The protective cover of Timo's MK-51 (very similar to my MK-18M's cover)
Backplate tag on Timo's MK-51
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It's actually a very compact little calculator - quite like the Casios of similar size and function of the early 1980s. The keyboard is very impressive, being one of the nicer feeling keyboards of any calculator I have used. It is powered by a single button-cell battery labeled CR-2325.
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