DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1250
| Date of introduction: | June 1, 1975 | Display technology: | LED-stick |
| New price: | $24.95 | Display size: | 8 |
| Size: | 5.5" x 2.8" x 1.4" 138 x 70 x 35 mm3 |
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| Weight: | 3.9 ounces, 110 grams | Serial No: | 1037019 |
| Batteries: | 9V | Date of manufacture: | wk 25 year 1977 |
| AC-Adapter: | AC9180 | Origin of manufacture: | Hong Kong |
| Precision: | 8 | Integrated circuits: | TMS0972 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(EU: 3.5 MByte) |
Production
of the TI-1250 was eventually shifted from US to Hong
Kong, probably to lower manufacturing costs during the Calculator
Wars.
Dismantling
this TI-1250 manufactured mid of 1977 in Hong Kong reveals the latest evolution
of the TI-1200 family: The TMS0972 single-chip calculator circuit w/o any
additional, passive components.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 26, 2008. No reprints without written permission.