DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

Removing the backside of the housing reveals a strange internal construction
based on a very thin and flexible printed circuit board (PCB). 

Everything inside the Checkbook II is different to the other Checkbook 
calculators. Even the calculator circuit uses a very thin housing.


horizontal rule

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

Joerg Woerner, February 19, 2004. No reprints without written permission.