Tesla Notes 06: A New System of Alternate Current Motors (1888)
Five years after the sand in Budapest, the field turned in iron at 89 Liberty Street, and I had to say exactly what I had seen.
Tesla's 1887 to 1888 polyphase patents and AIEE lecture: the rotating field's circle proof, synchronous versus induction motors, and why three-phase saves copper.
Nikola Tesla
November 5, 2026
25 min