Additional Pictures 


The second chip set developed by Texas Instruments uses four integrated circuits (IC's)
instead the three IC's of the earlier Canon Pocketronic. The driver for the Nixie tubes
composed of discrete transistors.

The Data chip TMC1733A manufactured in March, 1971.

The Timing chip TMC1753A manufactured in February, 1971.

The Entry chip TMC1754A manufactured in March, 1971.

The Arithmetic chip TMC1807 - an updated TMC1755A - manufactured in March, 1971.

One of the twelve Nixie tubes.

The Nixie tube in action.

If you have additions to the above article please email:

Joerg Woerner, December 21, 2002. No reprints without written permission.