Hexadecimal mechanical calculator from the 1970s

Описание к видео Hexadecimal mechanical calculator from the 1970s

The Hexadder, made by Hexco Inc in the early 1970s. Sent to me by viewer Tom Carlson. Thanks Tom!

This is episode 66 of my video series about old calculating devices.

Original instructions PDF: https://archive.org/details/hexadderi...

Maya numeral table by Wikimedia user Neuromancer2K4, CC-BY-SA-3.0

Roman numeral and Chinese counting rod tables from Wikipedia.

HTML color codes from https://htmlcolorcodes.com/

End song inspired by "Hotter than a Molotov" by The Coup.

Chris Staecker webarea: https://faculty.fairfield.edu/cstaecker

#hexadecimal #base

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