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Additional Pictures 

 

The DCM-50A Platform with the MK5012 single-chip calculator circuit from a Caltronic 912 manufactured in February 1973.
Close-up view of the Cal-Tex MK5012 single-chip calculator circuit.

Close-up view of the view of the 3 Litronix DL-33 Seven-Segment LED Displays.

 


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

© Joerg Woerner, July 3, 2026. No reprints without written permission.