DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1500 (2nd design)
| Date of introduction: | 1974 | Display technology: | LED-stick |
| New price: | $69.95 | Display size: | 8 |
| Size: | 5.0" x 2.6" x 1.0" | ||
| Weight: | 7 ounces | Serial No: | 1500117320 |
| Batteries: | 2*AA NiCd | Date of manufacture: | wk 30 year 1974 |
| AC-Adapter: | AC9140, AC9900/C | Origin of manufacture: | USA |
| Precision: | Integrated circuits: | TMS0803 | |
| Memories: | |||
| Program steps: | Courtesy of: | Peter Muckermann |
The
original TI-1500 was soon replaced with this revised
design.
We
notice two major changes:
 | The %-key found its place in the usual place instead left from the 0-key. |
| The
expensive display made of
9 single 7-segment modules borrowed from the SR-50 was replaced with a LED-stick manufactured by Bowmar and known from the TI-2500B. |
Within few month Texas Instruments started production of their
own LED-sticks and the TI-1500 was changed again. Don't miss the 3rd
design.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 15, 2002. No reprints without written permission.