DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-2550 (2nd design)
| Date of introduction: | 1975 | Display technology: | LED-stick |
| New price: | $99.95 | Display size: | 8 |
| Size: | 6.5" x 3.2" x
1.8" 165 x 80 x 45 mm3 |
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| Weight: | 7.8 ounces, 220 grams | Serial No: | 2550391520 |
| Batteries: | 3*AA NiCd or 4*AA Alkaline | Date of manufacture: | wk 18 year 1975 |
| AC-Adapter: | AC9130 or AC9120 | Origin of manufacture: | USA |
| Precision: | Integrated circuits: | TMS0601 | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(US: 1.8M Bytes) |
The
only difference between the original TI-2550 and this later model is the LED
(Light Emitting Diodes) display. The original design used the Opto-stick display
manufactured by Bowmar, the later models carried a Texas Instruments LED-stick
with magnifier lenses.
The
electronics of the TI-2550 is centered around a Texas Instruments TMS0601
single-chip calculator circuit.
Datamath™ is a trademark of Texas Instruments.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.