Texas Instruments TI-15 Explorer

Date of introduction:  October 7, 1999
 Available: Feb., 2000
Display technology:  LCD
New price:  $14.99 (SRP 2008) Display size:  11 +11 characters
Size:  6.8" x 3.2" x 0.50"
 172 x 82 x 13 mm3
Weight:  4.0 ounces, 112 grams Serial No:  
Batteries:  CR2025 (60A) Date of manufacture:  mth 03 year 2000
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  13 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Combines the fraction capabilities of the Math Explorer with a 2-line display, problem solving, place value and more.

Later the features of the MathMate were combined with the 2-line display of the TI-15, don't miss the TI-10.

TI-15_N0300_PCB.jpg (65918 Byte)Dismantling the TI-15 reveals a typical design of a calculator developed in 1999. The single-chip calculator circuit is bonded directly to a high-quality printed circuit board (PCB) while the keyboard makes use of a much simpler Phenolic PCB. The featured calculator was manufactured in 2000 by contract manufacturer Nam Tai Electronics, Inc., we recently located a TI-15 Explorer manufactured by Kinpo Electronics, Inc. in China, too.

The TI-73 Explorer added even a graphics screen to the Explorer line of calculators.

Stokes Publishing Company, Inc. based in Sunnyvale, California sold a companion for the teacher, view the wonderful TI-15 Overhead Calculator.

Math Explorer and MathMate are trademarks of Texas Instruments.

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If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.