Additional Pictures 


This WIZ-A-TRON was manufactured in June 1978 by 
Texas Instruments in Midland, TX (Date code 2678 MTA »week 26 year 1978).

The WIZ-A-TRON is powered by a 9V battery.

 The WIZ-A-TRON with the front part of its housing removed.

The printed circuit board (PCB) of the WIZ-A-TRON
is centered around a TMC0907 single-chip calculator circuit.

Close-up view of a TMC0907 packaged in a
28-pin SPDIP (Shrink Plastic Dual In-line Package).

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© Joerg Woerner, October 21, 2023. No reprints without written permission.