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Texas Instruments Galaxy 40x  

Date of introduction:  1991 Display technology:  LCD 
New price:   Display size:  10 (6 + 2)
Size:  3.4" x 5.5" x 0.65"
 87 x 140 x 17 mm3
   
Weight:  3.8 ounces, 108 grams Serial No:  
Batteries:  CR2032 Date of manufacture:  wk 36 year 1992
AC-Adapter:   Origin of manufacture:  Italy
Precision:  12 Integrated circuits:  Toshiba T6A59 (PN1111273)
Memories:  1    
Program steps:   Courtesy of:  Otto Herzig
    Download manual:   (DE: 3.1 MByte)

With the Galaxy 40x Texas Instruments introduced an enhanced scientific calculator performing fractional arithmetic. You may use two different modes:

Euklid's division: 56 / 5 = 11 (Q)  1 (R)
Fractional division: 56 / 5 = 11_1/5

With the SIMP and F-D-key you can shorten results and convert between fractional and decimal display:

3_35/70 SIMP 3_1/2  F-D 3.5

With the Galaxy 40sx Texas Instruments sold a similar calculator using solar cells. A more traditional housing was used with the similar TI-32 Explorer Plus and its European sibbling TI-40 Solar.

Galaxy40x_PCB.jpg (79854 Byte)A less sophisticated calculator using the fractional arithmetic was introduced with the Galaxy 9x. Both use identical printed circuit boards inside.

In Belgium, France and Italy a slightly modified version of the Galaxy 40x supported "French fractions", don't miss the Galaxy 40. Think about a programmable calculator in the same package and read more about the Galaxy 67!

The Galaxy 40x found soon its way to the vision impaired people. German based company EHG Handy Tech Elektronik GmbH developed with the Galixa Speech and Galixa Braille two products with natural voice speech output and even a 10-cell braille display.

 

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

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