36kV hi-pot electrical tester.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...r_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...pot_tester.jpg
Previously:
https://www.homemadetools.net/forum/...500#post135831
https://www.homemadetools.net/forum/...134#post138227
https://www.homemadetools.net/forum/...506#post132064
