DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Canon LE-81M
| Date of introduction: | 1974 | Display technology: | LED-stick |
| New price: | $79.95 | Display size: | 8 |
| Size: | 5.4" x 3.0" x 1.4" | ||
| Weight: | 7 ounces | Serial No: | 515423 |
| Batteries: | 4*NiCd AA | Date of manufacture: | year 1974 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 8 | Integrated circuits: | TMC0605 |
| Memories: | |||
| Program steps: | Courtesy of: | Peter Muckermann |
The
LE-81M seems to be the direct successor of the odd looking LE-81
calculator. It was introduced together with the LE-100
sporting 10-digits and the scientific calculator F-5.
The
electronics of the LE-81M is centered around a TMC0605 single-chip calculator
circuit developed by Texas Instruments. This design traced back to the TI-2550
introduced Januar, 1974. The display of the LE-81M is a small LED-stick
manufactured by competitor Bowmar.
The
rechargable battery pack of the LE-10 was replaced with
a compatible unit holding either 4 AA-sized rechargable NiCd batteries or
standard deposible batteries.
Later - and cheaper - calculators in the LE-line were the LE-83,
LE-84 and LE-85.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.