The Educator® GALACTIC 9X

Date of introduction:  1992 Display technology:  LCD 
New price:   Display size:  10 (6 + 2)
Size:  4.5" x 7.2" x 0.35"    
Weight:  5.0 ounces Serial No:  
Batteries:  n.a. Date of manufacture:  
AC-Adapter:   Origin of manufacture:  China
Precision:  12 Integrated circuits:  Toshiba T6A60
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

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".

Galactic9X_PCB.jpg (492636 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 Galaxy 9x introduced by Texas Instruments in the year 1992 developed itself to a very successful school calculator. The one to one replacement from Stokes Publishing Company is this GALACTIC 9X overhead calculator.

Funny to know that this Galactic 9X sports on the backside of the housing small solar cells. Very clever approach, they are illuminated from the overhead projector and eliminate batteries. 

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

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© Joerg Woerner, October 13, 2002. No reprints without written permission.