DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1766 (2nd design)
|Date of introduction:||1982||Display technology:||LCD|
$18 (October 1981)
|Size:||4.6" x 2.6" x 0.35"|
|Weight:||1.9 ounces||Serial No:||880625|
|Batteries:||n.a.||Date of manufacture:||mth 11 year 1982|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Toshiba T6758S|
|Program steps:||Courtesy of:||Joerg Woerner|
With the TI-1766 Texas Instruments entered 1981 the market of LCD-calculators powered by solar cells. This 2nd design replaced the redundant "SOLAR AND LIGHT POWER" phrase with a more precise "LIGHT POWERED" slogan.
The printed circuit board (PCB) inside this TI-1766 manufactured end of 1982 carries the designation "Toshiba TI-1766 SOLAR". How to distinguish between the 1st design and this 2nd design?
|1st design||2nd design|
|Solar cells||10 elements||10 elements|
|Name||SOLAR AND LIGHT POWER||LIGHT POWERED|
|PCB revision||TI-1766||TI-1766 SOLAR|
|Calculator chip||Toshiba T6758S||Toshiba T6758S|
In 1983 Toshiba reduced the supply voltage of the
electronics and switched to solar cells with just 4 elements. Don't miss the 3rd
design of the TI-1766.
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© Joerg Woerner, March 17, 2007. No reprints without written permission.