DATAMATH CALCULATOR MUSEUM
|
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 |
| Memories: | 1 | ||
| 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: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.