DATAMATH CALCULATOR MUSEUM
Texas Instruments Speak & Spell / Professor (China)
|Date of introduction:||1990||Display technology:||LCD|
|New price:||Display size:||9 alphanumeric|
|Size:|| 10.0" x 7.0" x 1.3"
254 x 177 x 34 mm3
|Weight:||16.7 ounces, 474 grams||Serial No:|
|Batteries:||4*C cells||Date of manufacture:||year 1991|
|AC-Adapter:||AC9199||Origin of manufacture:||China|
|Precision:||Integrated circuits:|| TSP50C42 (CSM42024)
Module: TSP60C80 (CM80004)
|Program steps:||Courtesy of:||Joerg Woerner|
Globalization. "Globalization describes a process by which regional economies, societies, and cultures have become integrated through a global network of communication, transportation, and trade" (From Wikipedia, the free encyclopedia).
In other words: A friend in India pointed us in March 2010 to this rare Chinese Speak & Spell sold on an online auction in Canada. Thank you, Rohit.
We never heard about this unique Speak & Spell variation and
contacted even the legal department of Texas Instruments to learn finally that it was
not a counterfeit but an official product of Texas Instruments in China.
At first glance this Speak & Spell "Professor" looks like an adaption of the Super Speak & Spell (91), but we missed immediately the dial to adjust the display contrast known already from the 1st generation of the Super Speak & Spell.
this rare Speak & Spell "Professor" manufactured in 1991 in China reveals immediately
some surprises. The printed circuit boards (PCBs) inside the housing of the 2nd
generation Speak & Spell introduced in 1980
look completely different from all PCBs we know so far but the technology is
obviously borrowed from the Super Speak & Spell.
The electronics of the Speak & Spell "Professor" is centered around the TSP50C42 Speech Synthesizer, a single-chip solution combining the TSP50C50 speech synthesizer with an 8-bit microcontroller, 16k Bytes Mask ROM for both program and voice and 128 Bytes + 16 Nibbles RAM.
One Speak & Spell "Professor" Cartridge Library is known:
|English Professor Cartridge II||not available|
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© Joerg Woerner, December 3, 2007. No reprints without written permission.