DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-31 SOLAR
|Date of introduction:||1988||Display technology:||LCD|
|New price:||Display size:||8 (5 + 2)|
|Size:|| 5.5" x 2.8" x 0.45"
140 x 72 x 11 mm3
|Weight:||2.8 ounces, 78 grams||Serial No:|
|Batteries:||n.a.||Date of manufacture:||wk 22 year 1989|
|AC-Adapter:||Origin of manufacture:||Italy|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 3.2 MByte)|
The TI-31 SOLAR is identical to the TI-31 introduced two year earlier. The main difference between the Italian and Japanese products is the size of the solar cells and the internal construction.
You'll notice these differences
with the Japanese BA-SOLAR
and the Italian BA-SOLAR, too.
A less sophisticated calculator was introduced with the TI-30 SOLAR.
The calculator was produced both in Italy (shown) and in China with a slightly different design. Find the China version here.
One year later the the appearance of the calculator changed again. Compare it here.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.