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Additional Pictures 

 

The SR-56 Programmable (left) manufactured in January 1977 by Texas Instruments in Rieti, Italy
next to a SR-56 (right) manufactured in December 1976 on the same assembly line.
The printed circuit boards (PCBs) of the SR-56 Programmable (left) next to the SR-56 (right).

The rear side of the PCBs of the SR-56 Programmable (left) next to the SR-56 (right.


horizontal rule

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© Joerg Woerner, January 13, 2024. No reprints without written permission.