DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

The DCM-50A Platform with the MK5011 single-chip calculator circuit from a Unitrex 1200 (Type 37, Rev. 4C) manufactured in May 1975.
Close-up view of the Mostek MK5011 single-chip calculator circuit.

Close-up view of the view of the JRC Septanix J4962E Planar Neon Gas Discharge Display (Panaplex-style).


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

© Joerg Woerner, March 22, 2026. No reprints without written permission.