DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The printed circuit board (PCB) of a Bohsei Model 1000 calculator manufactured in September 1977 with its (mirrored) backside.


horizontal rule

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

© Joerg Woerner, February 8, 2023. No reprints without written permission.