Vintage Electronic Calculators:

Overview of Brands


MBO: M801
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AKA (Label): MODEL M-801, Product number (P/N): M801 (M-801),
Keywords/Tags: M801 (M-801)
Date of intro: ~1973, Origin: Japan (List), Dimensions: 145x90x38mm, Weight: 195g,
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (VFD tube) (List), Digits = 8+1,
Number of keys: 21, #Key-Black: 18, #Key-Blue: 2, #Key-Red: 1,
Miscellaneous switch: [(Blank)-OFF],
Classification: / Pocket,
Known Serial-numbers: 351474 (List of all S/Ns from MBO)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),


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Label, name plate / Examples of use / Bottom
S/N: 351474

Created: 18-mar-2006, Manual-update: 14-jan-2021, Batch-update: 06-aug-2022             

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