DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
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 kept its housing and colorful design. Dismantling the LD-8M 2 and some related
Canon calculators reveals some two pairs:
| • Small display tube and small PCB: LD-81,
LD-8M 2 • Large display tube and enlarged PCB: LD-84, LD-8M 3 |
The internal electronics
of both the LD-81 and LD-8M 2 calculators is based on a
Hitachi single-chip calculator circuit. 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.