AKA: LCD SCIENTIFIC, Dual Permanent Memory, AKA (Label): EC-497, LCD Calculator, Cat. No. 65-653, Product number (P/N): 65653 (65-653),
Keywords/Tags: 65653 (65-653) | EC497 (EC-497) | LCD SCIENTIFIC, Dual Permanent Memory
Date of intro: 1979, Origin: USA (List), Dimensions: 135x70x11mm, Weight: 64g,
Power: 3V: (LR44 x2),
Display: Type = Display (LCD) (List),
Number of keys: 40, #Key-Black: 5, #Key-Grey: 23, #Key-White: 12,
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: TEXAS INSTRUMENTS: TP03214N,
Original Equipment Manufacturer : TEXAS INSTRUMENTS: 50, Made by: TEXAS INSTRUMENTS (List of all Import-OEM-models for RADIO SHACK),
Collector value: 7/10,
Internet: Link-1: DATAMATH CALCULATOR MUSEUM