DATAMATH CALCULATOR MUSEUM
|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
|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|
|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.
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  [yx]  = 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: firstname.lastname@example.org.
© Joerg Woerner, July 1, 2002. No reprints without written permission.