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Additional Pictures 

 

Close-up view of the TMC0501 Arithmetic Chip used with the SR-50 and other calculators.
PMOS Technology, 28-pin DIP 4-bit serial Register Processor, 5*16*4 Bits Data SAM.


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

© Joerg Woerner, May 2, 2021. No reprints without written permission.