The Lindström Record Calculator

This is a stepped drum mechanical calculator. It was made from 1913 till 1929 in Germany, but only about 6000 were made.
Stephen Freeborn also has a video about this machine: • Lindström Record mecha...
For more information about this and other machines in my collection, please visit my website:
www.jaapsch.net/mechcalc/
0:00 Introduction, History
2:20 Keyboard
3:15 Keyboard mechanism
4:02 Crank
4:20 Mechanism
8:22 Outro

[@matthewwhaley55]

I found your channel a while ago when looking for unique ASMR content, but I never expected to learn so much or be so fascinated by this stuff. Thank you for continually posting such great content!

[@TheIDofED]

Great photography of the lovely step drums, very nice machine.

[@GrumpyTim]

Love the new filming style Jaap, really nice. What a lovely machine, beautifully engineered and an awesome sound too. I love the pins at the rear that drop down when there's a carry, I could watch those all day long.

[@jaapsch2]

Yes it has a great sound, but those carries are loud!

[@GrumpyTim]

@@jaapsch2 Perhaps their loudness doesn't translate fully on the video - it just sounds like a happy little machine clicking away in a relaxing manor! It might be just me, but I find old mechanical machines very relaxing to listen to.

[@someonespadre]

I like how they made they internal mechanism pleasing to look at.

[@stephenfreeborn]

Nice video. Now I’ll have to go to your site to see what I missed. I liked that shot of the carries moving the mechanism up and down.

[@danielbuck]

amazing machine, thanks for showing it :)

[@ChrisStaecker]

Rapid cuts! very nice-

[@jaapsch2]

I’m slowly learning. It does look like I gave up about halfway through…