DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The Main printed circuit board (PCB) of an Unitrex 1200 (Type 37, Rev. 4C) calculator manufactured in February 1973 with its (mirrored) backside.


horizontal rule

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

© Joerg Woerner, March 15, 2026. No reprints without written permission.