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Additional Pictures 

 

The TI-1880 Checkwriter in the intended application.

This TI-1880 Checkwriter was manufactured in March 1982 by
Texas Instruments in Abilene, TX (Date code ATA 1182 wk 11 yr 1982).

The slimline calculators make use of a very efficient packaging
with just a few components and a flexible printed circuit board (PCB).

The flexible PCB of the TI-1880 Checkwriter is centered
around the Texas Instruments TP0311A single-chip calculator circuit.

Close-up view of the TP0311A calculator chip.


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

Joerg Woerner, March 6, 2006. No reprints without written permission.