DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1766 (3nd design)
Date of introduction: | 1983 | Display technology: | LCD |
New price: | $18 (October 1981) |
Display size: | 8 |
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 |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
With
the TI-1766 Texas Instruments entered 1981 the market of LCD-calculators powered by solar
cells.
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.
Don't miss the rare Teal
Photon, the World's first pure
solar-powered calculator!
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.