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|
|Program steps:||Courtesy of:||Joerg Woerner|
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.
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.
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© Joerg Woerner, March 17, 2004. No reprints without written permission.