DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The printed circuit board (PCB) of the N-0407 coded calculator wires
to the battery and connects to a one-sided keyboard PCB.

The printed circuit board (PCB) of the K-0407 coded calculator 
uses the well known SR16 designation of Kinpo.

The printed circuit board (PCB) of the K-0505 coded calculator 
uses the well known SR16 designation of Kinpo.


If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, August 15, 2007. No reprints without written permission.