Tech Tangents | Pocket Mechanical Calculator - Addiator/Addifix @TechTangents | Uploaded August 2020 | Updated October 2024, 9 hours ago.
The Addifix/Addiator is a great little pocket calculator and is fun to use. All with no electricity!

I may or may not want to start a small collection of these now because there are some fascinating and beautiful older ones. And it's so simple and cool. Any device that makes you think "Well of course thats how it works" and is easy to use like this is great in my eyes as a mechanical device. Sure, the Comptometer is amazing for the other reasons of being complex and functional. But I can appreciate the other end of the spectrum as well.

Here's my Comptometer video if you want to know more about 9's compliment and how I did division: youtube.com/watch?v=fe-9uTVMQlo

If you want to get one of these and support the channel you can use this link:
ebay.to/3iVVrDZ

Playlists of more stuff like this:
Calculators: youtube.com/playlist?list=PLJVwF78cppBhg7iHlQpZKtgYbaJ4ZvDSR
1960s: youtube.com/playlist?list=PLJVwF78cppBiOOSCCbfy4ti0lTC6D7Hsg

Other Links
Youtube: youtube.com/AkBKukU
Github: github.com/AkBKukU
Thingiverse: thingiverse.com/AkBKukU
Patreon: patreon.com/AkBKukU
Discord: discord.gg/E6xgGs6