DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1500 (3rd design)
| Date of introduction: | 1974 | Display technology: | LED-stick |
| New price: | $69.95 | Display size: | 8 + 1 |
| Size: | 5.0" x 2.6" x
1.0" 126 x 66 x 26 mm3 |
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| Weight: | 4.9 ounces, 139 grams | Serial No: | 1500219114 |
| Batteries: | 2*AA NiCd | Date of manufacture: | wk 22 year 1975 |
| AC-Adapter: | AC9140, AC9900/C | Origin of manufacture: | USA |
| Precision: | 8 | Integrated circuits: | TMS0803 |
| Logic: | Chain | Displays: | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(US: 2.4M Bytes) |
The
second design of the TI-1500 was soon replaced with this revised
design.
We
noticed again two major changes:
| • The removable AA-sized
NiCd-batteries were replaced with a solder-type battery. • The Bowmar Opto-stick was replaced with the cheaper LED-stick found in the TI-1200. |
The calculator was manufactured at least till spring 1976, we
know the serial number 1500544350 manufactured week 13, 1976 in Lubbock, TX.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.