Uploaded February 2021 | Updated September 2026, 1 hour ago
The Brunsviga 11E is an electrically driven mechanical calculator made in the 1950s. It is the successor to the Brunsviga 10, and uses the same split stepped drum mechanism.
See also my video on the Brunsviga 10:
youtu.be/KrpPEvLlczE
And the Brunsviga 10 mechanism:
youtu.be/mqnpGvh7JuA
For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
0:50 Addition
1:07 Subtraction
1:30 Clearing
2:00 Moving carriage
3:10 Multiplication
4:30 Division
6:05 Outro
The Brunsviga 11E is an electrically driven mechanical calculator made in the 1950s. It is the successor to the Brunsviga 10, and uses the same split stepped drum mechanism.
See also my video on the Brunsviga 10:
youtu.be/KrpPEvLlczE
And the Brunsviga 10 mechanism:
youtu.be/mqnpGvh7JuA
For more information on this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
0:50 Addition
1:07 Subtraction
1:30 Clearing
2:00 Moving carriage
3:10 Multiplication
4:30 Division
6:05 Outro










