AKA (Label): CAT. NO. 65-641, MODEL EC-281, Product number (P/N): 65641 (65-641),
Keywords/Tags: 65641 (65-641) | EC281 (EC-281) | 281
Date of intro: 1977, Origin: Taiwan (List), Dimensions: 152x83x30mm, Weight: 165g,
Power: 6V: (AA x4) + Adaptor, Adaptor: RADIO SHACK_adaptors: 14-854,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 41, #Key-Black: 29, #Key-Red: 1, #Key-White: 11,
Miscellaneous switch: [DEG-RAD OFF-ON],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: RADIO SHACK_docu: (Instr.) EC281; RADIO SHACK_parts: (Box) EC281,
Known Serial-numbers: 002471747 (002471 7A7) | 0121238A7 (012123 8A7) | 0254085A8 (025408 5A8) | 0364018A8 (036401 8A8) | 1841812A7 (18418 12A7) (List of all S/Ns from RADIO SHACK)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),