AKA: AUTO POWER OFF, EC-4021, PROGRAMMABLE SCIENTIFIC CALCULATOR, AKA (Label): EC-4021, CAT.NO. 65-984, Product number (P/N): 65984 (65-984),
Keywords/Tags: 65984 (65-984) | EC4021 (EC-4021) | PROGRAMMABLE SCIENTIFIC CALCULATOR
Date of intro: ~1988, Origin: Taiwan (List),
Power: 3V: (LR44 x2),
Display: Type = Display (LCD) (List), Digits = 8+2,
Number of keys: 40, #Key-Black: 11, #Key-Brown: 12, #Key-Orange: 2, #Key-White: 15,
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Programmable, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 3, Programmable Steps: 40,
Related with: RADIO SHACK_parts: (Box) EC4021,
Main Components: SHARP: LI3301A,
Made by: SHARP (List of all Import-OEM-models for RADIO SHACK),
Known Serial-numbers: 11A8 | 7A8 (List of all S/Ns from RADIO SHACK)
Initial Cost Price: BEF995, Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: R/S Programmable Calculators