The Educator® TI-34 II

Date of introduction:  2001 Display technology:  LCD
New price:  $95 Display size:  11 characters and  10 +2
Size:  8.3" x 4.2" x 0.40"
 210 x 107 x 10 mm3
Weight:  5.9 ounces, 170 grams Serial No:  
Batteries:  CR2032 Date of manufacture:  year 2005
AC-Adapter:   Origin of manufacture:  China
Precision:  11 Integrated circuits:  
Memories:  5    
Program steps:   Courtesy of:  Joerg Woerner

TI-34-II_1.jpg (425322 Byte)The California based company Stokes Publishing Company, Inc. distributes under the label "The Educator®" calculators optimized for teaching purposes. William T. Stokes filed already July 30, 1991 the US Patent Application U.S. Pat. No. 5,035,502 with the title "Transparent calculator for overhead projection".

TI-34-II_Back.jpg (378726 Byte)Both the keyboard and the display are made from translucent glass and plastics. Using a simple overhead projector the teacher could demonstrate easily the function of a calculator. 

The TI-34 II introduced by Texas Instruments in 1999 developed itself to a very successful school calculator. The one to one replacement from Stokes Publishing Company is this TI-15 Overhead calculator.

TI-34-II_PCB.jpg (504215 Byte)The internal construction of the Stokes calculator looks very robust. Both the display and the keyboard make use of support frames. The connectors to the printed circuit board and a lot of screws to make it shock resistant.
Please notice the TI-40(2) designation etched on the PCB (printed circuit board). 

Overhead™ Calculator is a trademark of Stokes Publishing Company, Inc.

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© Joerg Woerner, November 21, 2007. No reprints without written permission.