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Additional Pictures 

 

This SR-50 was manufactured in December 1974 by
Texas Instruments in the Netherlands (Date code 504 » wk 50 yr 1974).
The printed circuit board (PCB) of the SR-50 is centered
around the TMC0501 / TMC0521 building blocks.

The Dismac logo found on the pouch of the SR-50.  

 


horizontal rule

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

© Joerg Woerner, May 29, 2016. No reprints without written permission.