Toshiba LC-857

Date of introduction:  ca. 1980 Display technology:  LCD 
New price:   Display size:  8
Size:  4.1" x 2.4" x 0.25"
 104 x 60 x 6 mm3
Weight:  1.3 ounces, 38 grams Serial No:  L28351
Batteries:  2*LR43  Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Hong Kong
Precision:  8 Integrated circuits:  Toshiba T3709
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

This Toshiba LC-857 doesn't fit into the line! Based on the yellow polarization filter and the Toshiba T3709 single-chip calculator circuit found inside, it was probably designed in 1980. But in this time frame all Toshiba handheld calculators were assembled in Japan, while this model was made in Hong Kong. Compared it e.g. with the LC-825 and LC-827.

Don't miss the Toshiba LC-829 manufactured in Hong Kong, too - but even sporting a calculator circuit from competitor Sharp Electronics.


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Joerg Woerner, December 12, 2010. No reprints without written permission.