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Stats...
| 1978
11/ 1982 |
|
66mm x
109mm x
8.5mm
100g
|
| 1979: 58 Rubles
1982: 40 Rubles
|
| 2 x D-0.06
|
Factories...
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Elektronika B3-30
The symbol at the bottom-left of the keyboard is commemorating the Moscow olympics of 1980. It is fairly common to find commemorative symbols on Soviet calculators.
 
b3-30 Manual
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The second (and last Soviet-designed) generation of calculators,
were produced around 1979 and started with the B3-30 and B3-39. The
major improvements over the previous generation were their smaller,
lighter size, and that they were cheaper and drew less current. The
B3-30 heralded the return to LCD display
technology and claimed to go 800 hours on one set of batteries due to
the combination of LCD display and their new CMOS circuitry. Here
again, the technology "leap" and visual clues point to a strong assist
from the Japanese firm "Sharp". These two calculators had only
percent, square root and reciprocal functions.
Thanks to J. Eric. Slone for sending me copies of the schematic diagram for his machine, and also the description of the D2-II mains adaptor.
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 | Period advertisment.
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