Casio fx-10
&
Sperry Remington SSR-8
Casio fx-10
Casio fx-10 "scientific calculator"
Distinctive features: The first of a long line of Casio hand-held scientific calculators.
Technical details:
8-digits, green vacuum fluorescent display. The display of the calculator above shows 12345670. The right-most digit is not a faulty 8 but a half-height 0,
which was fashionable around this time.
Scientific functions.
4x AA cells.
Main integrated circuit: NEC uPD179C, here date coded 1974.
95 x 150 x 32 mm. (3.75" x 5.9" x 1.3").
Price in U.S.A. in August 1974 was US$99.95[1].
Made in Japan.
This was the first Casio hand-held scientific calculator. The model number 'fx-10' is derived from the calculator having 10 scientific functions, where "fx" is the scientific designation for function.
Sperry Remington SSR-8
Sperry Remington SSR-8
By comparing these photographs of the Sperry Remington SSR-8, generously provided by Neovo Geesink, with the Casio fx-10 at the top of the page you can see that they are identical apart from the colour
and branding.
Casio manufactured several other models for Sperry Remington in the mid-1970s.
Hand-held Calculators
Vintage Calculators
Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2025.