AKA: TRIUMPH 81, AKA (Label): Type: EC11, Product number (P/N): EC11,
Keywords/Tags: EC11 | 81 | TRIUMPH
Date of intro: ~1972, Origin: United Kingdom (List), Dimensions: 119x69x25mm,
Power: 4.5V: (AA x3) + Adaptor, Adaptor: TRIUMPH-ADLER_adaptors: AD2,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 20, #Key-Black: 6, #Key-Blue: 1, #Key-Orange: 1, #Key-Red: 1, #Key-White: 11,
Decimal switch: [F-5/4], Miscellaneous switch: [(Plug)-(Battery) (Blank)-A],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: (Resemblance 054),
Serie-members: TRIUMPH-ADLER: 81 (version-1) ('ADLER'-notation under display); TRIUMPH-ADLER: 81 (version-2) ('ADLER'-notation above display); TRIUMPH-ADLER: 81 (version-3) ('TRIUMPH'-notation under display); TRIUMPH-ADLER: 81 (version-4) ('TRIUMPH'-notation above display),
Initial Cost Price: USD105.00, Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),