DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments T-1225 sold by True Value
| 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: | A098275 |
| Batteries: | 9V | Date of manufacture: | wk 24 year 1976 |
| AC-Adapter: | AC9180 | Origin of manufacture: | USA |
| Precision: | 8 | Integrated circuits: | TMS0972 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Nothing
else than a TI-1250 with another
keyplate sold under the name of True Value. Don't miss the TI-1220
based on the TI-1200.
Maybe there is a story behind this calculator ? One source (1) tells that this calculator was planned as a regular TI calculator. Shortly after approval of the calculator by the QRA the project was stopped.
The box of the T-1225 states: Custom model manufactured for True Value Hardware Stores. The warranty address on the back of the calculator is: Texas Instruments Service Facility.
(1) The National Museum of American History's Chip Collection
Commets by Bill Heye, Ralph McCullough
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.