AKA: ELSI MATE EL-5809, AKA (Label): ELECTRONIC CALCULATOR, EL-5809, Product number (P/N): EL5809 (EL-5809),
Keywords/Tags: EL5809 (EL-5809) | 5809 | ELSI MATE
Date of intro: 1978, Origin: Japan (List),
Power: 3V: (G12 x2),
Display: Type = Display (LCD) (List),
Number of keys: 33, #Key-Grey: 11, #Key-Orange: 1, #Key-Red: 1, #Key-White: 20,
Miscellaneous switch: [OFF-DEG-RAD-GRAD-ON],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Patents: 3902169(US); 3976994(US),
Main Components: SHARP: SC43300,
Collector value: 7/10,
Internet: Link-1: VIRTUAL MUSEUM OF CALCULATORS, Link-2: Robert LACOSTE