DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-503SV
| Date of introduction: | 2015 | Display technology: | LCD |
| New price: | $5.00 (SRP 2017) | Display size: | 8 |
| Size: | 4.8" x 3.1" x 0.65" 121 x 79 x 17 mm³ |
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| Weight: | 2.3 ounces, 65 grams | Serial No: | |
| Batteries: | LR54 (30µA) | Date of manufacture: | mth 05 year 2017 (J) |
| AC-Adapter: | Origin of manufacture: | Philippines (L) | |
| Precision: | 8 | Integrated circuits: | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
We
acquired both this TI-503SV and its sibling TI-1706SV when we realized that their
production was shifted from China to the Philippines and learned with other
calculators like the TI-108 about nice
improvements, e.g. larger numbers on the display.
Dismantling this TI-503SV manufactured in
May 2017 by
Kinpo Electronics in the
Philippines revealed a small surprise. At first glance looks the internal construction
identical to the TI-503SV manufactured in China
but we noticed a small unsoldered jumper on the printed circuit board (PCB).
We
expected this jumper to switch between the American decimal point and the German
comma, but a second calculator acquired in Germany had the very same jumper
unsoldered, too.
Fellow
collectors - if you know the secret of this jumper J1 (AM OPEN / M SHORT) - let
us know. We closed the jumper with one TI-503SV on purpose but couldn't find any
differences in operation.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 28, 2017. No reprints without written permission.