Texas Instruments Mathe-Fix

Date of introduction:  1986 Display technology:  
New price:   Display size:  n.a.
Size:  4.1" x 7" x 1.3"    
Weight:  8 ounces Serial No:  
Batteries:  4*AA cells Date of manufacture:  wk 24 year 1989
AC-Adapter:   Origin of manufacture:  Italy
Precision:   Integrated circuits:  TMS50C40 (CD54170)
Program steps:   Courtesy of:  Joerg Woerner

Think about a Speak & Math without the fluorescent display trimmed to German language. 

A slightly more powerful version was sold in other countries with the:

le Calcul magique
Dotto Conta-Parla
Maths marvel

Dismantling the Mathe-Fix reveals a small surprise, the printed circuit board (PCB) of the educational toy is centered around a TMS50C40 standard voice synthesizer chip. We know this technology already from the Little Maestro and its sibblings Speak & Music, La Musique Magique and Fonillo Suonaparla.

The Mathe-Fix is featured in the Texas Instruments Deutschland GmbH leaflet Spielen macht schlau dated 1991.

If you have additions to the above article please email:

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