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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.

TI-30Chall_PCB.jpg (67553 Byte)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.