DATAMATH CALCULATOR MUSEUM
Canon Palmtronic LD-80 Panther D
|Date of introduction:||1974||Display technology:||Fluorescent|
|New price:||Display size:||8|
|Size:||5.8" x 3.5" x 1.25"|
|Weight:||6.7 ounces||Serial No:||126907|
|Batteries:||4*AA||Date of manufacture:||mth 10 year 1974|
|AC-Adapter:||AD-1||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Hitachi HD3633|
|Program steps:||Courtesy of:||Joerg Woerner|
At first glance this Canon Panther D seems to be identical with the original Canon LD-80.
Dismantling the calculator reveals a surprise. Instead the TMS0855 single-chip calculator circuit developed by Texas Instruments we notice a Hitachi HD3633 chip. Canon changed quite often the manufacturer of their calculator chips, you'll notice similar pairs with the LD-81 and LD-83 or even within the same designation like the LD-8M 3.
the TMS0855 a calculator brain similar to the one found in the
rare TI-150. With the basic four
functions, a percent key and the optional sqr-function it found its way into
most other calculators of the Palmtronic LD series.
The LD-80 used an unique design and looks more or less like some Sharp calculators. The later LD-81 defined with ist blue, yellow and black keys the appearance of the „Palmtronic“ calculators and this style was kept even with some calculators using the LC-Display (Liquid Crystal) like the LC-8M.
Don't miss the Panther 8.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, September 20, 2003. No reprints without written permission.