Additional Pictures 


This SR-50A was manufactured in May 1976 
by Texas Instruments in Lubbock, TX (week 21 year 1976).

The printed circuit board (PCB) of this late SR-50A with provisions
to manufacture even a SR-51A or SR-56 Programmable.

horizontal rule

If you have additions to the above article please email:

Joerg Woerner, September 10, 2008. No reprints without written permission.