AKA: checkmate 1740, Product number (P/N): 1740A,
Keywords/Tags: 1740A | checkmate
Date of intro: ~1975, Origin: Malaysia (List), Dimensions: 165x78x25mm, Weight: 120g,
Power: 4.5V: (AA x3) + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 25,
Classification: / Pocket,
Featuring: Procent, Square root, Memories: 1,
Known Serial-numbers: 33297 | 44422 (List of all S/Ns from LITRONIX)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),