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