Vacuum tube tesla coil (VTTC) using Russian GU-81m
Vasil sent me 3 of his complete tesla coil systems. So here I am rebuilding his GU81m VTTC.
Vacuum tube tesla coil (VTTC) using Russian GI-30
A vacuum tube tesla coil built around the Russian tetrode GI-30. My first VTTC and my first vacuum tube circuit, and some very rewarding results.