AKA: navtronic 1701TR, Product number (P/N): 1701tr,
Keywords/Tags: 1701tr | navtronic
Date of intro: 1979, Origin: USA (List), Dimensions: 152x81x38mm,
Power: 4.5V, Adaptor: SPECIALIZED ELECTRONICS_adaptors: 41C,
Display: Type = Display (LED) (List),
Number of keys: 30, #Key-Brown: 18, #Key-Orange: 1, #Key-White: 11,
Miscellaneous switch: [CG-MOM BRT-DIM],
Classification: / Pocket / Navigation,
Patents: 3979057(US); 3979058(US),
Main Components: NATIONAL SEMICONDUCTOR: MM5782; NATIONAL SEMICONDUCTOR: MM57129; NATIONAL SEMICONDUCTOR: MM5368,
Known Serial-numbers: 11850 | 8687 (List of all S/Ns from SPECIALIZED ELECTRONICS)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: DATAMATH CALCULATOR MUSEUM