DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-52 (Italy)
|Date of introduction:||1987||Display technology:||LCD|
|New price:||Display size:||10 + 2|
|Size:||3.5" x 6.0" x 0.65"|
|Weight:||4.0 ounces||Serial No:|
|Batteries:||2*LR44||Date of manufacture:||wk 02 year 1990|
|AC-Adapter:||Origin of manufacture:||Italy|
|Precision:||12||Integrated circuits:||Toshiba T7767S|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual, Addendum:||
(DE, FR: 11.8 MBytes)
(EU: 0.9 MBytes)
In 1987 the complete design of the TI-52 and its sibbling TI-30 Galaxy was revised and production of the calculators shifted from Japan to a Texas Instruments facility located in Rieti, Italy.
the featured TI-52 manufactured in February 1990 and comparing it with an
original TI-52 assembled in Japan reveals some
interesting differences. The original design makes use of two rigid printed
circuit boards (PCBs) while the second generation is based on only one,
two-sided flexible PCB.
The position of the display was moved away from the upper boarder of the calculator housing to allow the already from the TI-1030 known technology of contacting PCB traces with the LCD display using a metal clamp.
Even the battery compartment was redesigned and the orientation of the two batteries changed.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.