DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1706+
| Date of introduction: | 1993 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 4.5" x 2.5" x
0.4" 115 x 63 x 10 mm3 |
||
| Weight: | 1.6 ounces, 46 grams | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 11 year 1993 |
| AC-Adapter: | Origin of manufacture: | China (N) | |
| Precision: | 8 | Integrated circuits: | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
TI-1706+ got again a rounder shape and different keys compared to the earlier TI-1706
III introduced six years earlier.
An identical housing in different colors was used with both the TI-106
and TI-1722+ CLEAR CALC calculator.
Dismantling
this TI-1706+ calculator manufactured in November 1993 by Nam
Tai Electronics, Inc. in China reveals a clean design centered around an
unknown single-chip calculator circuit bonded in Chip-on-Board (COB) technology
directly onto a double-sided printed circuit board (PCB) and powered by four
solar cells.
Inspecting the PCB of this TI-1706+ calculator brought our attention to
two small marks reading
TI-106 and DA312 confirming its relationship to the TI-106. We started compiling a list of the
PCB-Marks on calculators
manufactured by OEMs for Texas Instruments.
Within three years the design of the calculator was changed, don't miss the next
generation of the TI-1706+.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 17, 2003. No reprints without written permission.