DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-307+
| Date of introduction: | 1995 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 2.4" x 3.6" x 0.30" 60 x 92 x 8 mm³ |
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| Weight: | 1.0 ounces, 29 grams | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 08 year 1996 |
| AC-Adapter: | Origin of manufacture: | China (N) | |
| Precision: | 8 | Integrated circuits: | Toshiba T6A73 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
TI-307+ was another "really cheap" calculator introduced in the 1990s.
It followed the TI-307 and its sibling TI-7000.
Compare the unique styling with the TI-1775+ and TI-2200+
introduced in 1996.
Dismantling
this TI-307+ manufactured in August 1996 by
Nam
Tai Electronics, Inc. in China reveals a typical design of the 1990's
centered around a single-chip calculator circuit hiding under a black epoxy-blob.
Rather
unusual - the printed circuit board (PCB) of the TI-307+ reveals the part number
of its main components, obviously a Toshiba T6A73 circuit.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.