DATAMATH CALCULATOR MUSEUM
|This SEC navtronic 1701r was manufactured
in USA in 1979.
|The printed circuit board (PCB)
of the navtronic 1701r with six IC's:
National Semiconductor MM5782, MM57129 and
(unknown manufacturer) ITC1200, ITC1210, ITC4800, 2*ITC5028.
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© Joerg Woerner, January 8, 2012. No reprints without written permission.