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Additional Pictures 

 

This Busicom "HANDY-LE" LE-120A was manufactured in June 1971 in Japan.
The calfax 800CD is powered by four disposable AA-size batteries.
The Main printed circuit board (PCB) of the Busicom "HANDY-LE" LE-120A is centered
around a Mostek MK6010L single-chip calculator circuit.
Close-up view of the Mostek MK6010L single-chip calculator circuit.
Close-up view of the 12 Monsanto MAN-3A Seven-Segment LED Displays.


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If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, May 26, 2026. No reprints without written permission.