Citizen 831RD

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1977
Description

The Citizen 831RD is an arithmetic calculator with 8 digits precision and algebraic logic. It has 10 functions, 28 keys and a VFD (vacuum fluorescent) display. The power source is 2xAA batteries.

Legacy Content: Unknown Author
Hardware Type
Calculator
Manufacturer
Citizen Holdings Co., Ltd.
Model Number
831RD
Launch Date
1977

Citations:

Courtesy of Calculator.org
Courtesy of Calcuseum
Courtesy of MyCalcDB
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