Uploaded March 2020 | Updated September 2026, 3 days ago

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In this video I have opened up the Add-O-Matic Adding Machine to show you the mechanism of this simple chain adder.

For more information on this and other calculators in my collection, visit my website:
jaapsch.net/mechcalc

0:00 Introduction
0:36 Chains
1:06 Carry mechanism
2:50 Sliders
3:19 Outro