DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-30X SOLAR
Date of introduction: | 1993 | Display technology: | LCD |
New price: | Display size: | 10 + 2 | |
Size: | 5.7" x 2.8" x 0.55" 146 x 72 x 14 mm3 |
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Weight: | 3.0 ounces, 84 grams | Serial No: | |
Batteries: | n.a. | Date of manufacture: | mth 11 year 1994 |
AC-Adapter: | Origin of manufacture: | Italy | |
Precision: | 12 | Integrated circuits: | Toshiba T6M38 |
Memories: | 3 | ||
Program steps: | Courtesy of: | Joerg Woerner |
Starting from the very first TI-30 with a red LED-display in the year 1976 all TI-30 variants used an 8-digit display. This is for most calculations convenient but in scientific notation you'll get only 5 digits of mantissa.
The TI-30X introduced a major improvement, the display capacity was eXpanded to a full 10 digit mantissa with two independent digits for the exponent. The complete X-family covered 4 models:
• TI-30X New display with 10 + 2
digits, 3 memories • TI-30X SOLAR With Anylite solar-cells • TI-35X Adds 2-dim statistics and hex-calculations • TI-36X SOLAR With Anylite solar-cells |
Dismantling
the TI-30X SOLAR reveals a novel construction based on a rubber keyboard
pressing on a flexible printed circuit board (PCB) with an attached rigid board
holding a Toshiba T6M38 single-chip calculator circuit.
Read more about the Logarithm Bug and its side effect on the related yx function present in this calculator.
Later the TI-30Xa added a constant key and all model got a more stylish housing.
The same housing was used with the BA Real Estate.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.