AKA: MATHEMATIC CALCULATOR, Palmtronic F-31, AKA (Label): PALMTRONIC F-31, Product number (P/N): F31 (F-31),
Keywords/Tags: F31 (F-31) | MATHEMATIC CALCULATOR | Palmtronic
Date of intro: 1977, Origin: Japan (List), Dimensions: 144x75x17mm, Weight: 115g,
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 30, #Key-Black: 12, #Key-Blue: 7, #Key-White: 10, #Key-Yellow: 1,
Keyboard Array (Rows x Columns): 07x05,
Decimal switch: [+-2-0-F],
Classification: / Pocket,
Featuring: Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: CANON: EH1011102,
Known Serial-numbers: 738414 (List of all S/Ns from CANON)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: MY CALCULATORS DATABASE, Link-2: DATAMATH CALCULATOR MUSEUM, Link-3: VIRTUAL MUSEUM OF CALCULATORS