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AKA (Label): EC 41, Product number (P/N): EC41 (EC 41),
Keywords/Tags: EC41 (EC 41) | 81CS
Date of intro: 1978, Origin: Japan (List), Dimensions: 152x76mm,
Power: 3V: (AA x2),
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 27, #Key-Black: 14, #Key-Blue: 2, #Key-White: 11,
Decimal switch: [F-0-2-3], Round switch: [5/4-on-off], Miscellaneous switch: [(Sigma)-(Blank)],
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Resemblance with: TRIUMPH-ADLER: 81CS (version-1); TRIUMPH-ADLER: 81CS (version-3), (Resemblance 033), Made by: OMRON (List of all Import-OEM-models for ROYAL),
Serie-members: ROYAL: 81CS (version-1) (3 switches); ROYAL: 81CS (version-2) (4 switches),
Known Serial-numbers: 72279232 | 72305870 | 72335286 (List of all S/Ns from ROYAL)
Initial Cost Price: USD16.95, Collector value: 7/10,
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