DATAMATH CALCULATOR MUSEUM
Longines Symphonette Electronic Calculator Version 2
|Date of introduction:||Display technology:||LED-stick|
|New price:||Display size:||8|
|Size:|| 5.5" x 3.0" x 1.7"
139 x 76 x 42 mm3
|Weight:||12 ounces||Serial No:||D1000-42285|
|Batteries:||4*AA NiCd (internal)||Date of manufacture:||1973|
|AC-Adapter:||AC9130||Origin of manufacture:||USA|
|Program steps:||Courtesy of:||Peter Muckermann († April 21, 2021)|
This calculator sold by Longines Symphonette could be easily recognized as a Texas Instruments Datamath calculator. The only difference between the original and the badged calculators is the Longines Symphonette label.
A more detailed comparison between the seven known Datamath Versions could be found here. Currently three of them are reported to be sold under the Longines Symphonette label:
TI-2500 Version 1
• TI-2500 Version 2
Datamath™ is a trademark of Texas Instruments.
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© Joerg Woerner, September 19, 2002. No reprints without written permission.