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Additional Pictures 

 

This Little Professor (1976 Version XC) was manufactured in September 1978 by 
Texas Instruments in Midland, TX (Date code 3878 MTA »week 38 year 1978).

The Little Professor is powered by a 9V battery.

 The Little Professor with the front part of its housing removed.

The printed circuit board (PCB) of the Little Professor (1976 Version XC)
is centered around a TMS0975NL/ZA0356 KCS single-chip calculator circuit.

Close-up view of a TMS0975NL/ZA0356 KCS packaged in a
28-pin SPDIP (Shrink Plastic Dual In-line Package).


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

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