AKA: mini handy 80R, AKA (Label): mini handy 80R, EIKO BUSINESS MACHINE CO., LTD., Product number (P/N): 80R,
Keywords/Tags: 80R | mini handy
Date of intro: ~1974, Origin: Japan (List), Dimensions: 127x70mm,
Power: 9V + Adaptor, Adaptor: UNITREX_adaptors: ADB715,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 20, #Key-Black: 11, #Key-Grey: 8, #Key-Red: 1,
Decimal switch: [F-4-2-0], Miscellaneous switch: [(Blank)-K OFF-ON],
Classification: / Pocket,
Featuring: Procent, Square root,
Related with: UNITREX_docu: (Instr.) 80R; UNITREX_parts: (Box) 80R,
Known Serial-numbers: A47D01363 (List of all S/Ns from UNITREX)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: SMITHSONIAN MUSIC