DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Longines Symphonette Electronic Calculator Version 1
| Date of introduction: | 1972 | Display technology: | LED modules |
| New price: | Display size: | 8 | |
| Size: | 5.5" x 3.0" x 1.7" 139 x 76 x 42 mm3 |
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| Weight: | 11.4 ounces, 322 grams | Serial No: | D1000-20495 |
| Batteries: | 6*AA NiCd | Date of manufacture: | year 1973 |
| AC-Adapter: | unknown | Origin of manufacture: | USA |
| Precision: | AC9100 | Integrated circuits: | TMS0119 |
| Memories: | |||
| Program steps: | Courtesy of: | Frank Boehm |
We
expect that about 18,000 Longines Symphonette Version 1
calculator were sold in the olive-green housing.
All Version 1 models with serial numbers above D1000-18000 use
the standard housing known from the Texas Instruments Datamath calculator.
This
Longines Symphonette with one of the highest reported serial numbers (D1000-20495) looks
very familiar to us.
Fellow collector Kai-Uwe Rommel reported in October 2015
serial number D1000-21646...
Dismantling
this late Longines Symphonette Version 1 calculators reveals an expected
manufacturing date of February 1973. Texas Instruments introduced the Datamath
Version 2 in February this year, too.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 6, 2004. No reprints without written permission.