Canon Palmtronic LD-81

Date of introduction:  October 1975 Display technology:  Fluorescent
New price:   Display size:  8
Size:  5.1" x 2.9" x 0.8"
 130 x 73 x 20 mm3
Weight:  3.8 ounces, 108 grams Serial No:  342078
Batteries:  2*AA Date of manufacture:  year 1976
AC-Adapter:  AD-2 Origin of manufacture:  Japan
Precision:  8  Integrated circuits:  TMS0855
Program steps:   Courtesy of:  Joerg Woerner

LD-81_1_PCB.jpg (40484 Byte)The second series of the Canon Palmtronic LD-81 makes use of a Texas Instruments TMS0855 calculator circuit instead the original Hitachi chip.

The later twins LD-83 / LD-84 uses a similar housing with a somewhat smaller keyboard. 

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Joerg Woerner, November 23, 2008. No reprints without written permission.