DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Canon F-73
| Date of introduction: | June 1982 | Display technology: | LCD |
| New price: | Display size: | 10 (8+2) | |
| Size: | 5.4" x 2.8" x 0.4" | ||
| Weight: | 2.7 ounces | Serial No: | |
| Batteries: | 2*LR44 | Date of manufacture: | year 1982 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 11 | Integrated circuits: | Toshiba T6711 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
Canon F-73 followed the unique F-72 and replaced the
foldable housing with a traditional landscape style design. The F-73 was
introduced together with the almost identical F-73P
adding a small program memory to the common scientific/statistical functions.
Dismantling
the F-73 is quite interesting, the inside story is 100% identical with the
programmable F-73P, even the keyboard is complete. Marketing just closed the key
openings of an existing calculator.
Canon introduced the F-73 and F-73P together with the Financial
Manager and added later even a printing version with the Financial
Printer.
Running Mike Sebastian's "Calculator forensics" on the F-73 gives a result of 9.0000278593. We know this number from a lot of later Texas Instruments calculators like the TI-30 SLR and the TI-31.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, April 5, 2004. No reprints without written permission.