DATAMATH CALCULATOR MUSEUM
Canon Palmtronic LD-81
|Date of introduction:||June 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:||250473|
|Batteries:||2*AA||Date of manufacture:||year 1976|
|AC-Adapter:||AD-2||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Hitachi HD36290|
|Program steps:||Courtesy of:||Joerg Woerner|
Canon Palmtronic LD-81 followed the original LD-80 and
introduced a complete new and colourful design. The colour-coding of the keys
– black for numbers, blue for functions and yellow for control – together
with the silver keyboard plate and the dark housing gives a fresh and modern
design. Compare it your own with the design style of the LE-84
or the odd LE-80R and LE-81
The new Palmtronic design style was slightly
refined with the smaller LD-8Ms and some LC-Display (Liquid Crystal) like the LC-8M.
Even scientifical calculators used this design style, don’t miss the F-6
and the late F-71.
The internal electroncis is based on a
Hitachi single-chip calculator IC. Within some month the calculator brain was
changed and with both the second series of the LD-81
and the similar looking twins LD-83 / LD-84
Texas Instruments was back again.
Don't miss the identical Panther
8 introduced October, 1975 and the tiny Palmtronic 8
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© Joerg Woerner, December 12, 2002. No reprints without written permission.