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Canon Palmtronic LD-8M 2

Date of introduction:  August 1975 Display technology:  Fluorescent
New price:   Display size:  8
Size:  5.2" x 2.9" x 0.8"  
Weight:  4.0 ounces Serial No:  607097
Batteries:  2*AA Date of manufacture:  year 1976
AC-Adapter:  AD-2 Origin of manufacture:  Japan
Precision:  8  Integrated circuits:  Hitachi HD36264
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

The Canon Palmtronic LD-8M 2 added a memory to the LD-81 basic four-function calculator but keeps its housing and colourful design.

Dismantling the LD-8M 2 and some related Canon calculators gives some calculator pairs:

Small display tube and small PCB: LD-81, LD-8M 2

Large display tube and enlarged PCB: LD-84, LD-8M 3

LD-8M2_PCB.jpg (37632 Byte)The internal electroncis of both the LD-81 and LD-8M 2 calculators is based on a Hitachi single-chip calculator IC. We know this chip already from the L812 small desktop calculator. Other pocket calculators in the line make use of either a NEC (LD-8M 3) or Texas Instruments (LD-83, LD-84) brain. 

If you have additions to the above article please email: joerg@datamath.org.

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