DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Canon F-65
| Date of introduction: | 1984 | Display technology: | LCD |
| New price: | Display size: | 10 + 2 | |
| Size: | 5.6" x 2.8" x 0.4" | ||
| Weight: | 3.6 ounces | Serial No: | 533234 |
| Batteries: | 2*LR1130 | Date of manufacture: | year 1981 |
| AC-Adapter: | Origin of manufacture: | Japan | |
| Precision: | 12 | Integrated circuits: | Toshiba T7767S |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
Canon F-65 Scientific Statistical Calculator adds some features to its sibbling F-58
but sports the same housing and keyboard.
If we run the Calculator
Forensics of the F-65 we discover the same 12-digit precision found on the TI-35
PLUS and TI-52. Dismantling the
F-65 reveals indeed with the Toshiba T7767S single-chip calculator circuit a
well known product.
The internal construction of the
F-65,
based on the LX-40 calculator, is very sophisticated.
Just a small, one-sided printed circuit board (PCB) attached to the LC-display,
batteries and the keyboard. The keyboard itself uses a sandwich of two conductive
foils with an isolating spacer between them. The sheet metal supports the
connections of the PCB to the LC-display and the keyboard.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 16, 2008. No reprints without written permission.