DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-30 Challenger
|Date of introduction:||1990||Display technology:||LCD|
|New price:||Display size:||8 (5 + 2)|
|Size:||5.4" x 2.8" x 0.45"|
|Weight:||2.4 ounces||Serial No:|
|Batteries:||n.a.||Date of manufacture:||mth 11 year 1991|
|AC-Adapter:||Origin of manufacture:||Italy|
|Precision:||11||Integrated circuits:||Toshiba T6974S|
|Program steps:||Courtesy of:||Joerg Woerner|
This calculator followed the first TI-30 Challenger soon. Main difference is the missing window on the display and the solar cells. It is in one line with the TI-30 SLR+ and the TI-31 Solar.
Dismantling the TI-30 Challenger reveals no big surprises, a Toshiba single-chip calculator circuit soldered on a cheap looking printed circuit board (PCB).
Don't miss the TI-25 SOLAR with similar performance.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.