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Additional Pictures 

 

The "Non-Spoken German" Language Teacher Module.

 
The printed circuit board (PCB) of the "Non-Spoken German"
Language Teacher Module with just one ROM:
CD 3509.

 


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

© Joerg Woerner, February 22, 2019. No reprints without written permission.