DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1766 (2nd design)
| Date of introduction: | 1982 | 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: | 880625 |
| Batteries: | n.a. | Date of manufacture: | mth 11 year 1982 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 8 | Integrated circuits: | Toshiba T6758S |
| 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. 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.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 17, 2007. No reprints without written permission.