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Texas Instruments CONCEPT II

Date of introduction:  1976 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.5" x 2.8" x 1.4"    
Weight:  5.5 ounces Serial No:  1008636
Batteries:  9V  Date of manufacture:  wk 42 year 1976
AC-Adapter:  AC9180 Origin of manufacture:  USA
Precision:  8 Integrated circuits:  TMS0972
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

You have to view two times to catch the differences between this rare CONCEPT II and the TI-1250 calculator. The only differences between the calculator is the colouring scheme of the faceplate.

Concept-I_CMP1.jpg (88458 Byte)The Concept line covered three different models: The Concept I based on the TI-1200, this Concept II based on the TI-1250 and the Concept III as a sibbling of the SR-16 II.



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

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