DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Toshiba SLC-8260
| Date of introduction: | 1978 | Display technology: | LCD |
| New price: | DM 70.00 | Display size: | 8 (5 + 2) |
| Size: | 5.2" x 2.9" x 0.4" 133 x 73 x 10 mm3 |
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| Weight: | 2.8 ounces, 80 grams | Serial No: | F15105 |
| Batteries: | 2*LR44 | Date of manufacture: | year 1978 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 9 | Integrated circuits: | Toshiba PN1033734 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Ernst Mulder |
You
are familiar with this calculator? It is almost identical to the TI-25,
the first scientific calculator using a LCD display marketed by Texas Instruments.
Compare them
yourself.
The
internal design of the SLC-8260 doesn't look like the usual Toshiba design. We
are missing details like the battery holder found in the LC-834WA.
Nevertheless there are other important details inside the SLC-8260. The printed
circuit board was manufactured by Sansyu,
a well know company since we dismantled some TI-1750
calculators.
The
next surprise could be found on the calculator chip found inside the SLC-8260,
it is the same unusual PN1033734 numbering found
inside a late TI-25.
The SLC-8260 was soon replaced with the SLC-8261
but continued to live under a different badge - discover the Sears LC89.
The SLC-8280 makes use of a similar design style.
Don't miss the SLC-8290WA
adding some metric conversion functions, a clock with two alarm-times and a
stopwatch.
Fellow collector Frans Pop reported recently, that the SLC-8260 calculator returns a wrong result of [7] [yx] [8] = 5764800 instead the correct result of 5764801. We expect a lousy implementation of the logarithm function in this design. Read more about the Logarithm Bug.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 1, 2002. No reprints without written permission.