DATAMATH CALCULATOR MUSEUM |
Canon card F-72
Date of introduction: | year 1980 | Display technology: | LCD |
New price: | Display size: | 10 (8 + 2) | |
Size: | 4.6" x 5.5" x 0.25" | ||
Weight: | 4.4 ounces | Serial No: | 424088 |
Batteries: | CR2032 | Date of manufacture: | year 1980 |
AC-Adapter: | Origin of manufacture: | Japan | |
Precision: | Integrated circuits: | Toshiba T3801S | |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
The
Canon card F-72 introduced in 1980 a remarkable powerful scientific/statistical
calculator in a foldable housing.
It is the successor of the F-71 with similar
functionality in a traditional housing.
Dismantling
the calculator took some time but revealed an interesting construction. In a
first step the back shells of the housing could be removed and in a second step
the electronics could be removed from the keyboard and display.
The
whole electronics of the F-72 is integrated in a Toshiba T3801S single-chip
calculator circuit soldered on a huge flexible printed circuit board covering the
whole calculator.
Don't miss the Canon card F-63 with the same
specifications in a different package.
Texas Instruments introduced almost 10 years later with the SC-10 a similar approach but used a combination of rigid PCB's and flexible connections between.
With the F-73 we got the landscape housing back in the upper end of Canon's scientific/statistical calculator line.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, March 17, 2004. No reprints without written permission.