DATAMATH CALCULATOR MUSEUM
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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 |
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| 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) | |
| Precision: | 8 | Integrated circuits: | |
| Memories: | 1 | ||
| 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.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 23, 2006. No reprints without written permission.