AKA: mini handy 80M, Product number (P/N): 0531,
Keywords/Tags: 0531 | mini handy | 80M
Date of intro: 1974, Dimensions: 123x70x23mm, Weight: 95g,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 20,
Decimal switch: [F-4-2-ADD], Miscellaneous switch: [N-M OFF-ON],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Serie-members: MBO: 80M (version-1) (Beige, 2 Yellow Keys); MBO: 80M (version-2) (Beige, No Yellow Keys); MBO: 80M (version-3) (Gray),
Known Serial-numbers: A47A61055 (List of all S/Ns from MBO)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),