Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Circular and Spiral Slide Rules
CONCISE / RCA EE-112
Concise International Co.
Japan
Plastic
1966
Ø 7.5 cm
Electronic

Notes: Version retailed by Sama & Etani as a promotional give away for RCA. In addition to the reactance nomograph on the back it has an extra pull-out plastic card for numerous conversions factors and related data tables.


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Image 5