DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The printed circuit board (PCB) of the Corvus 300E 
desktop calculator sports some mystery holes and slits.
The Corvus 305 reveals the secrets of them. 


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

Joerg Woerner, March 23, 2003. No reprints without written permission.