DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-30 SLR PLUS
|Date of introduction:||1985||Display technology:||LCD|
|New price:||Display size:||8 (5 + 2)|
|Size:||5.4" x 2.7" x 0.4"|
|Weight:||3.0 ounces||Serial No:||152081|
|Batteries:||n.a.||Date of manufacture:||mth 07 year 1987|
|AC-Adapter:||Origin of manufacture:||Japan (T)|
|Precision:||11||Integrated circuits:||Toshiba T6974S|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 6.2 MByte)|
This rare TI-30 SLR PLUS brings immediately the famous TI-30 SLR in mind. Texas Instruments entered in 1982 the market of scientific LCD-calculators powered by solar cells with an almost perfect product developed and manufactured by Toshiba in Japan. The only drawback of the original TI-30 SLR was the limited calculating precision with only 9 digits instead of the 11 digits known from competing calculators.
1984 Toshiba released with the T6974S a new calculator chip with much better
algorithm sporting 11 digits of precision. We discovered the T6974S in the
second edition of the TI-30 SLR, the TI-35 SOLAR,
and this TI-30 SLR PLUS. All three calculators are identical and sport just
minor differences in the keyboard labeling and the color of the case.
In 1986 the overall appearance of the T6974S based scientific calculators was completely changed with the best selling TI-31, TI-31 SOLAR and TI-30 SLR+.
Nevertheless manufactured Toshiba the TI-30 SLR PLUS mid of 1987 still in the old styling.
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© Joerg Woerner, December 19, 2006. No reprints without written permission.