Product number (P/N): K80M,
Keywords/Tags: K80M
Date of intro: ~1973, Origin: Japan (List), Dimensions: 220x120x36mm,
Power: 6V: (C x4) + Adaptor,
Display: Type = Display (VFD tube) (List), Digits = 8+1,
Number of keys: 18, #Key-Black: 6, #Key-Red: 1, #Key-White: 11,
Keyboard Array (Rows x Columns): 04x05, Keyboard Layout: [7] [8] [9] [CA] [CD] - [4] [5] [6] [x] [(Division)] - [1] [2] [3] [+=] [-=] - [0] [.] [+/-],
Decimal switch: [DECIMAL_AUTO-2-4], Miscellaneous switch: [POWER_OFF-ON-K],
Classification: / Desktop with Display,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: (Resemblance 500_4_5_18),
Known Serial-numbers: 102386 | 907468 (List of all S/Ns from HATRA)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),