Rockwell 8R and varieties.
Distinctive features: A popular, low-cost, calculator from the Rockwell range.
Technical details:
Display is 8 digits, red LED.
4-function, %.
9v (PP3 battery).
Integrated circuit - Rockwell B5000.
62 x 92 x 22 mm (2.4" x 3.6" x 0.9").
1975.
Made in U.S.A., Mexico, Hong Kong.
Popular low-cost calculator.
Versions were produced with different case styles for other companies. All have the characteristic domed keys.
Inside the Rockwell 8R, showing the small number of components.
In early versions the keyboard plugs into the circuit board using the black sockets on the right and bottom edges.
However these are expensive so in later versions the keyboard is soldered to the circuit board.
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