Texas Instruments TI-30X IIS

Date of introduction:  April 22, 1999
 Availanbe: June 1999
Display technology:  LCD
New price:  $17.99 Display size:  11 characters and  10 +2
Size:  6.1" x 3.2" x 0.6"    
Weight:  3.2 ounces Serial No:  
Batteries:  Solar cells + CR2025 (60µA) Date of manufacture:  mth 08 year 2002 (C)
AC-Adapter:   Origin of manufacture:  China (K)
Precision:  13 Integrated circuits:  
Memories:  5    
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments stopped in 2000 the production of the then new two-line calculators TI-30X IIB, TI-30X IIS, TI-34 II, and TI-40 Collège II and announced a replacement offer running through January 31, 2001. 

Please read more about the Logarithm Bug and its side effect on the related yx function present in the early models of these calculators.

The featured calculator was manufactured in August 2002 by contract manufacturer Kinpo Electronics, Inc. in China and should be "bug free".

Dismantling the TI-30X IIB reveals a typical Kinpo design of a calculator developed in 1999: The Kinpo-internal SR-xx designation on the main printed circuit board (PCB) and a Fibreglass PCB for the keyboard instead the cheaper Phenolic PCB used by competitor Nam Tai Electronics, Inc.  

In 2004 Texas Instruments introduced a new design line with a really prominent name plate and some modern applications like an aluminium bezel around the display. Please start your journey with the new TI-30X IIS.



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© Joerg Woerner, January 16, 2009. No reprints without written permission.