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Additional Pictures 

 

This Montgomery Ward TXI-8662A (Display 1) was manufactured in August 1974
by Texas Instruments (Date code 334 » wk 33 yr 1974).
The double-sided printed circuit board (PCB) of the TXI-8662A
is centered around a TMS0601 single-chip calculator circuit.

Close-up view of the TMS0601 single-chip calculator circuit.
Close-up view of the SN27915 Segment Driver.

 		 Close-up view of the SN27914 Digit Driver.
Close-up view of the DIS134C Display PCB.


horizontal rule

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

© Joerg Woerner, December 4, 2011. No reprints without written permission.