Vintage Electronic Calculators:

Overview of Brands


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AKA: Compet 23, AKA (Label): (COMPET 23), MODEL CS-23C, Product number (P/N): CS23C,
Keywords/Tags: CS23C | 23 | Compet
Date of intro: 1970, Origin: Japan (List), Dimensions: 310x290x135mm,
Power: AC,
Display: Type = Display (Nixie) (List), Digits = 14,
Number of keys: 23, #Key-Blue: 5, #Key-Red: 1, #Key-White: 17,
Keyboard Array (Rows x Columns): 04x07, Keyboard Layout: [K] [7] [8] [9] [RC] [=] [CM] - [CE] [4] [5] [6] [x] [(Division)] [MR] - [C] [1] [2] [3] [M-] - [0] [.] [=] [M+],
Indicators: E M,
Classification: / Desktop with Display,
Featuring: Logic-technology: SSI (Small Scale Integration) / JMOS (Japanese MOS),
Serie-members: SHARP: CS12A (12-Digit Itron, No Mem.); SHARP: CS12D (12-Digit Itron, No Mem.); SHARP: CS16A (12-Digit Itron, Mem.); SHARP: CS16C (12-Digit Nixie, Mem.); SHARP: CS16D (12-Digit Itron, Mem.); SHARP: CS16S (12-Digit Nixie, Mem.); SHARP: CS17B (12-Digit Nixie, No Mem.); SHARP: CS17C (12-Digit Nixie, No Mem.); SHARP: CS18D (12-Digit Itron, Mem.); SHARP: CS22A (14-Digit Nixie, Mem.); SHARP: CS22C (14-Digit Nixie, Mem.); SHARP: CS23C (14-Digit Nixie, Mem.),
Known Serial-numbers: 91016609 | 91018009 | 914428 | 97002911 (List of all S/Ns from SHARP)
Collector value: 8.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


Additional picture
(Courtesy of: GREINER Johannes)

(Courtesy of: GREINER Johannes)

Internals (semiconductor)
(Courtesy of: GREINER Johannes)

Label, name plate
S/N: 914428
(Courtesy of: GREINER Johannes)

Created: 10-nov-2001, Manual-update: 08-jul-2021, Batch-update: 26-feb-2024             

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5 Pic(s),


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