DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1766 II (2nd design)
|Date of introduction:||1987||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 4.6" x 2.5" x 0.35"
117 x 65 x 8 mm3
|Weight:||1.8 ounces, 52 grams||Serial No:|
|Batteries:||n.a.||Date of manufacture:||mth 09 year 1987|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Program steps:||Courtesy of:||Joerg Woerner|
The second design of the TI-1766 II sports for unknown reasons larger solar cells than the first edition introduced just one year earlier. Texas Instruments entered already in 1981 with the TI-1766 the market of LCD-calculators powered by solar cells. It took only two years and the cheaper looking TI-1706 appeared and made its own way in TI's calculator product line.
The next generation of both the TI-1766 II and TI-1706
II kept still a visible difference in their appearance. Don't miss the TI-1768
of the same era sporting a tiltable display.
Dismantling this TI-1766 II manufactured in September 1987 by Inventec Corporation in Taiwan reveals a clean design centered around an unidentified single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by four large solar cells.
In 1988 the design was slightly changed and looks almost identical to the first design of the TI-1766 II, don't miss the final TI-1766 II. The third generation of the TI-1766 and TI-1706 - named TI-1766 III and TI-1706 III - lost the exclusive flair of the TI-1766 and used similar housings.
The TI-1766+ introduced in 1996 brought finally the value proposition of the TI-1766 series back again.
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© Joerg Woerner, February 23, 2006. No reprints without written permission.