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Additional Pictures 

 

Close-up view of the TMS1875 single-chip calculator circuit used with the Heathkit IC-2008.
PMOS Technology, 28-pin DIP 4-bit serial Register Processor, 320*11 Bits Instruction ROM, 3*13*4 Bits Data SAM.


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

© Joerg Woerner, March 18, 2023. No reprints without written permission.