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Texas Instruments TI-30X IIB

Date of introduction:  2000 Display technology:  LCD
New price:  $13.99 Display size:  11 characters and  10 +2
Size:  6.1" x 3.2" x 0.6"
 154 x 83 x 15 mm³		    
Weight:  3.3 ounces, 94 grams Serial No:  
Batteries:  CR2025 (60µA) Date of manufacture:  mth 04 year 2002 (C)
AC-Adapter:   Origin of manufacture:  China (N)
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 April 2002 by contract manufacturer Nam Tai Electronics, Inc. in China and should be "bug free".

 Dismantling the TI-30X IIB 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 PCB. Most of Nam Tai's calculators make use of a Phenolic PCB for the keyboard, the raw material is much cheaper than the Fibreglass PCB used by e.g. Kinpo 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. Don't miss the the new TI-30X IIB.

 

 

If you have additions to the above article please email: joerg@datamath.org.

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