DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-5142
|Date of introduction:||1982||Display technology:||Fluorescent|
|New price:||Display size:||12|
|Size:|| 10.4" x 8.1" x 2.5"
265 x 206 x 63 mm3
|Weight:|| 3 pounds 0 ounces
|Batteries:||Date of manufacture:||mth 12 year 1982|
|AC-Adapter:||120 V||Origin of manufacture:||Japan|
|Precision:||12||Integrated circuits:||NEC uPD1224G|
|Memories:||1 + 1|
|Program steps:||Courtesy of:||Joerg Woerner|
The TI-5142 continued the design line started with the TI-5040 and its 12-digits sibbling TI-5220. Compared with the earlier products the TI-5142 uses a mechanical printer which delivers 2.5 lines per second on plain paper. The styling of this TI-5142 was adopted within month to fit with the TI-5130. View the original TI-5142 here.
internal construction of the TI-5142 is typical for a Japanese calculator:
Only few components fitted directly in the bottom shell of the housing.
Since we deciphered the product label of the TI-5310 matching the UL-File number E42662 with a identification code 694B, we know with Toshiba TEC Corp. the manufacturer of this calculator, too.
Don't miss the database of all known UL-File numbers found on Texas Instruments calculators.
In 1983 Texas Instruments changed the design line again to the "office grey" colouring schema of other office products. The desktop line covered then 6 different calculators:
|TI-5008 Pocket-sized, thermal printing|
|TI-5010 Small-sized, standard paper|
|TI-5032 Desktop-sized, battery option|
|TI-5130 10-digits, standard paper|
|TI-5142-III 12-digits, standard paper|
|TI-5020 Non-printing, solar powered|
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© Joerg Woerner, November 12, 2003. No reprints without written permission.