DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1766 (3nd design)
|Date of introduction:||1983||Display technology:||LCD|
$18 (October 1981)
|Size:||4.6" x 2.6" x 0.35"|
|Weight:||1.9 ounces||Serial No:||296671|
|Batteries:||n.a.||Date of manufacture:||mth 06 year 1983|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Toshiba T6789S|
|Program steps:||Courtesy of:||Joerg Woerner|
the TI-1766 Texas Instruments entered 1981 the market of LCD-calculators powered by solar
The printed circuit board (PCB) inside this TI-1766 manufactured mid of 1983 carries the designation "Toshiba TI-1766II" and sports a Toshiba T6789S single-chip calculator circuit instead the previous T6758S. Due to the lower supply voltage of this design the solar cells made use of just 4 elements.
How to distinguish between the 2nd design and this 3rd design?
|2nd design||3rd design|
|Solar cells||10 elements||4 elements|
|Name||LIGHT POWERED||LIGHT POWERED|
|PCB revision||TI-1766 SOLAR||TI-1766II|
|Calculator chip||Toshiba T6758S||Toshiba T6789S|
The 1st design of the TI-1766 was derived from the Toshiba LC-847, this 3rd design is almost a twin of the Toshiba LC-847 II.
In the meantime we discovered a 4rd design of the TI-1766 using another calculator chip and a different logo. Don't miss it.
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Photon, the World's first pure
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© Joerg Woerner, December 5, 2001. No reprints without written permission.