AKA (Label): MODEL 1660 ELECTRONIC CALCULATOR, Product number (P/N): 1660,
Keywords/Tags: 1660
Date of intro: 1976, Origin: Hong Kong (List), Dimensions: 130x68x23mm, Weight: 84g,
Power: 9V + Adaptor, Adaptor: RADOFIN_adaptors: AD20,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 19, #Key-Blue: 8, #Key-White: 11,
Miscellaneous switch: [ON-OFF],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: GENERAL INSTRUMENT: CF596,
Other components: NATIONAL SEMICONDUCTOR: DS8872N,
Resemblance with: (Resemblance 006),
Serie-members: RADOFIN: 1660 (version-1) (Black); RADOFIN: 1660 (version-2) (Beige),
Known Serial-numbers: 10012 (List of all S/Ns from RADOFIN)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: LE RAYON DES CALCULATRICES