1957 - Bohn Contex 10 Mechanical Calculator In Depth Look
This is such a cool little device, an all mechanical calculator with a keypad input that supports the four big functions. This thing rocks!
After going back and re-reading the page I mentioned that used foam to repair one of these ( https://www.csparks.com/contex/ ) it definitely looks like I'll be needing to do that as well. It's a shame that foam was used since it is such a degradable part.
Playlists of more stuff like this:
Calculators: https://www.youtube.com/playlist?list=PLJVwF78cppBhg7iHlQpZKtgYbaJ4ZvDSR
1960s: https://www.youtube.com/playlist?list=PLJVwF78cppBiOOSCCbfy4ti0lTC6D7Hsg
Other Links
Youtube: https://www.youtube.com/AkBKukU
Github: https://github.com/AkBKukU
Thingiverse: https://www.thingiverse.com/AkBKukU
Patreon: https://www.patreon.com/AkBKukU
Discord: https://discord.gg/E6xgGs6
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