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CASIO: 121A
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AKA: 121-A, AKA (Label): 121-A, Product number (P/N): 121A (121-A),
Keywords/Tags: 121A (121-A)
Date of intro: 1969, Origin: Japan (List), Dimensions: 343x140x64mm,
Power: AC,
Display: Type = Display (Nixie) (List), Digits = 12,
Keyboard: Reed-switch, Number of keys: 15,
Classification: / Desktop with Display,
Featuring: Logic-technology: SSI (Small Scale Integration) / JMOS (Japanese MOS),
Related with: (Docu_Articles): 197106: Microelectronics shrinks the calculator,
Main Components: HITACHI: HD3112,
Original Equipment Manufacturer : CASIO: 121A (version-1) (List of all Export-OEM-models from CASIO), Resemblance with: CASIO: ASA; COMMODORE: 512,
Known Serial-numbers: 721523B | 721752B | 721765 | 721939 | 722652B (722652 B) | 723333B | 723343 | 723584 | 724565B | 724954B | 727348 (List of all S/Ns from CASIO)
Initial Cost Price: USD359.00, Collector value: 9/10,
Internet: Link-1: THE OLD CALCULATOR MUSEUM

!!! This item is WANTED to join the collection !!!

Item

Display

Accessories

Instructions

Misc

Label, name plate
S/N: 724565B

Protection (suitcase)

Protection (dust cover)

Created: 01-jan-2014, Manual-update: 04-aug-2020, Batch-update: 25-feb-2024             

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