DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments CONCEPT I
| 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: | 1035661 |
| Batteries: | 9V | Date of manufacture: | wk 43 year 1976 |
| AC-Adapter: | AC9180 | Origin of manufacture: | USA (LTA) |
| Precision: | Integrated circuits: | TMS0972 | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
You
have to view two times to catch the differences between this rare CONCEPT I and
the TI-1200 calculator. The only differences between
the calculator is the colouring scheme of the faceplate.
Dismantling
the CONCEPT I reveals no surprise - the printed circuit board (PCB) of the
calculator is 100% identical with the common TI-1200.
The Concept line covered three different models: This Concept
I based on the TI-1200, the 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.