Uploaded June 2019 | Updated September 2026, 53 minutes ago

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The Triumphator KA is an adding machine made in Leipzig, East Germany, in about 1960. It has an 8-digit register and can add and subtract.

For more information on the Triumphator KA and other mechanical calculators in my collection, visit my website:
jaapsch.net/mechcalc

0:00 Introduction
0:17 Addition
1:08 Subtraction
1:40 Clearing
1:50 History
3:43 Mechanism
6:28 Outro