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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
Memories:      
Program steps:   Courtesy of:  Joerg Woerner

At first glance this Canon Panther D seems to be identical with the original Canon LD-80

LD-80_Panther_PCB.jpg (38500 Byte)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: joerg@datamath.org.

© Joerg Woerner, September 20, 2003. No reprints without written permission.