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Texas Instruments TI-7140

Date of introduction:  1994 Display technology:  LCD
New price:   Display size:  8
Size:  4.6" x 2.5" x 0.30"
 117 x 64 x 8 mm3 
   
Weight:  1.7 ounces, 48 grams Serial No:  
Batteries:  n.a. Date of manufacture:  wk 22 year 1994
AC-Adapter:   Origin of manufacture:  Lubbock, USA
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

We wrote the year 1989 when Texas Instruments started the US-built campaign. Together with the TI-7000 other models like the TI-7100, TI-7200, TI-7300 and TI-7400 were introduced for Wal*Mart and other discounters. And all carried the "Made in USA" logo. If you read the small printed on the back of the calculator you'll notice the sentence "With foreign and domestic components". If you opened the calculator before reading, you would pronounce the word "foreign" !

This TI-7140 matches the design of the TI-7000 II and TI-7300 II. This trio marks the last Lubbock-built calculators, they were introduced and manufactured in 1994. The TI-7140 was sandwiched between the TI-507 and TI-507+, both were manufactured in China.

Don't miss the TI-8230 printing desktop calculator manufactured in the U.S.A., too.

Don't miss the colorful Fun Calc based on the TI-7140.



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

Joerg Woerner, May 23, 2002. No reprints without written permission.