Uploaded August 2021 | Updated September 2026, 3 days ago
The Facit CA1-13 is a fully automatic electromechanical calculator. Facit made their first fully automatic calculator in 1945, and that evolved into this model which appeared in 1956 and was produced until the early 1970s. As well as the three visible registers it has an internal register used to store the first factor in a multiplication.
I apologise for the wandering focus of my camera.
For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
0:37 Addition
1:08 Clearing
1:28 Semi-automatic multiplication
3:06 Subtraction
4:24 Automatic carriage shift
5:38 Automatic multiplication
8:14 Division
9:52 Aborting division
12:09 The NEG button
13:03 Outro
The Facit CA1-13 is a fully automatic electromechanical calculator. Facit made their first fully automatic calculator in 1945, and that evolved into this model which appeared in 1956 and was produced until the early 1970s. As well as the three visible registers it has an internal register used to store the first factor in a multiplication.
I apologise for the wandering focus of my camera.
For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
0:37 Addition
1:08 Clearing
1:28 Semi-automatic multiplication
3:06 Subtraction
4:24 Automatic carriage shift
5:38 Automatic multiplication
8:14 Division
9:52 Aborting division
12:09 The NEG button
13:03 Outro
