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Additional Pictures 

 

This SR-10 Version 1 (Display 2) was manufactured in March 1973 by Texas Instruments.

The double-sided printed circuit board (PCB) of the SR-10 Version 1 (Display 2)
is centered around a TMS0120 single-chip calculator circuit.

Close-up view of the TMS0120 single-chip calculator circuit.

Close-up view of the SN27422 Segment Driver.

Close-up view of the SN27423 Digit Driver.

Close-up view of the DIS115F Display PCB with 12 individual DISXXX Seven-Segment displays.


horizontal rule

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

Joerg Woerner, November 18, 2021. No reprints without written permission.