DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-55-II Prototype
| Date of introduction: | 1981 | Display technology: | LCD |
| New price: | $40.00 | Display size: | 8 + 2 |
| Size: | 5.8" x 3.1" x 0.9" | ||
| Weight: | 3.9 ounces | Serial No: | 210035 |
| Batteries: | 2*LR44 | Date of manufacture: | wk 37 year 1981 |
| AC-Adapter: | Origin of manufacture: | USA | |
| Precision: | 11 | Integrated circuits: | CD4555, CD4556 |
| Memories: | 1-8 | ||
| Program steps: | 56-0 | Courtesy of: | Stefan Klaes |
| Download manual: | 
(US-QR: 1.242 kB) |
This
early prototype of the TI-55-II sports two differences to the later series
model:
 | The display frame is much darker. |
| The two Integrated Circuits (IC's) look not very professional. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 10, 2004. No reprints without written permission.