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Design...
It is not currently (and it may never be) known just how much independent
design went into these "Soviet" calculators, and how much
was reverse-engineered or just plain stolen. Due to possible
lost-royalty claims, nationalistic propaganda and touchy issues of the
international observation of Geneva Convention copyright laws, details
of USSR design procedures are scant. What is known, or at least can
be observed, is the similarity of various Soviet electronic devices to
Western and Japanese designs.
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Stolen from Sharp?
© Thomas Brockmeier
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Side-by-side comparison of the Sharp EL-805 and the Elektronika B3-04.
There really isn't much room for doubt that it's a copy!
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Let's have a look inside!
The images of the circuit boards of the two machines, below, indicate the similarity of the machines. Although the chips are different shapes, they are in exactly the same positions, indicating that the layout of the boards is also identical. It is clear from the above that the B3-04 is a copy of the SHARP machine.
© Thomas Brockmeier
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The SHARP circuit board.
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© Sergei Frolov
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The B3-04 circuit board
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