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Canon Card F-55S scientific calculator from 1979: The most compact of all?
03-02-2015, 10:42 AM (This post was last modified: 03-02-2015 10:54 AM by EdS2.)
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RE: Canon Card F-55S scientific calculator from 1979: The most compact of all?
Nice little machine! The second calculator I owned (probably in 1976) was a small scientific but not quite so small - a Commodore SR7949 - 50 functions or so, with double-shifted keys. About 12 digits of precision, but only 5 digits displayed by default - there's a key sequence for the second set of 5. It took a 9v battery and used them up quite quickly. This one doesn't work any more.

[Image: DSCF4326.JPG]

The manual can be seen at
http://www.wass.net/manuals/Commodore%20SR7949D.pdf
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RE: Canon Card F-55S scientific calculator from 1979: The most compact of all? - EdS2 - 03-02-2015 10:42 AM



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