Mathix 400A

Date of introduction:  1976 Display technology:  LED
New price:   Display size:  red and green
Size:  5.2" x 3.0" x 1.3"
 131 x 75 x 33 mm3
Weight:  3.4 ounces, 97 grams Serial No:  
Batteries:  9V  Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:   Integrated circuits:  MM5780
Program steps:   Courtesy of:  Peter Muckermann

This educational toy - and the similar Santron 400 - are not related to Texas Instruments. They are only included for comparison with the rare MATH MAGIC and its sibling WIZ-A-TRON.

The same electronic was used in the QuizKid from National Semiconductor and the wonderful Monkey See sold by Radio Shack.

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If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.