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Additional Pictures 

 

The backside of an early Little Professor. This particular model was
manufactured end of 1976 in Lubbock, TX (week 42 year 1976). 

The backside of a later Little Professor. This particular model was
manufactured end of 1977 in Midland, TX (week 50 year 1977). 

The printed circuit board (PCB) of an early Little Professor.
This one was manufactured in Fall 1976

The PCB of a later production model of the Little Professor
make use of a smaller package for the calculator chip.


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

© Joerg Woerner, October 2, 2002. No reprints without written permission.