Uploaded August 2021 | Updated September 2026, 6 hours ago
Note the schematic in video is wrong with the diode bridge. It has been corrected in the webpage schematic.
bristolwatch.com/ele4/variac.htm
Note the schematic in video is wrong with the diode bridge. It has been corrected in the webpage schematic.
bristolwatch.com/ele4/variac.htm










