DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Radio Shack EC-2000
| Date of introduction: | 1974 | Display technology: | Panaplex II |
| New price: | $79.95 | Display size: | 10 |
| Size: | 8.1" x 6.3" x 2.5" | ||
| Weight: | 1 pound 8 ounces | Serial No: | 01509 |
| Batteries: | Date of manufacture: | ||
| AC-Adapter: | 120 V | Origin of manufacture: | USA |
| Precision: | 10 | Integrated circuits: | TMS0106 |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
This
Radio Shack EC-2000 desktop calculator could be easily identified as a Texas
Instruments product. If you compare the layout of the keyboard with the TI-3500
you'll notice an identical assembly, even the sliding switches and the power
switch match in style and position. Don't miss the earlier EC-1000
based on the TI-3000 but using a
completely different housing.
Removing
the backside of the housing proves our ideas - the complete printed circuit board
(PCB) of the calculator is borrowed from the TI-3500.
The EC-2000 was the last Texas Instruments desktop calculator sold under the
Radio Shack brand, later models based on far-east OEM products.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 12, 2004. No reprints without written permission.