DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Canon Palmtronic LD-8M 3 a.k.a. Palmtronic 8M
| Date of introduction: | Display technology: | Fluorescent | |
| New price: | Display size: | 8 | |
| Size: | 5.5" x 3.0" x 0.8" | ||
| Weight: | 4.2 ounces | Serial No: | 505286 |
| Batteries: | 2*AA | Date of manufacture: | year 1976 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 8 | Integrated circuits: | TMS1042 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
Canon Palmtronic 8M, also known as LD-8M3, is one of the successors of the
LE-series. Compared to the original LE-series using a red LED-Display (Light
Emitting Diodes) the later LD-series sports the green VF-Display (Vacuum
Fluorescent) and the LC-series either yellow of grey LC-Displays
(Liquid-Crystal).
Dismantling
the Palmtronic 8M is always a small surprise, some use a calculator circuit
manufactured by Texas Instruments, others use a NEC circuit. Don't miss the
sibbling here.
The final edition of the Palmtronic 8M, called LD-8M 4, uses the Hitachi HD36264 single-chip calculator circuit of the LD-8M 2.
A minor design variation could be found here.
Don't miss the LE-84 and LC-8M
for a direct comparision.
The similar Palmtronic 8 missed the memory, view the LD-84. Later a much smaller calculator appeared with the LD-8Ms.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 19, 2003. No reprints without written permission.