DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1650
|Date of introduction:||June 13, 1976||Display technology:||Fluorescent|
|New price:||$29.95, £19.95, DM 64.00||Display size:||8|
|Size:|| 4.9" x 2.8" x
125 x 70 x 16 mm3
|Weight:||3.9 ounces, 110 grams||Serial No:||310941|
|Batteries:||Custom made||Date of manufacture:||wk 34 year 1976|
|AC-Adapter:||AC9131||Origin of manufacture:||USA|
|Program steps:||Courtesy of:||Joerg Woerner|
The TI-1650 and its siblings TI-1600, TI-1680 were very flat calculators compared to the previous TI-1200 models. Only one year in front of the first pocket-sized LCD-calculators you could carry them in your shirt.
the TI-1600 or one of its siblings is difficult, three small plastic locks have
to be bent together in different directions.
The technology behind the TI-1650 is similar to the TI-1265, instead of the normal 9V battery a very flat (custom made by French company SAFT) rechargeable battery is used.
Sales figures kept low, soon after the introduction of the TI-1650 the first LCD-calculators appeared on the market.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.