Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>
Original poster: Ed Phillips <evp@xxxxxxxxxxx>
"Possibly a toroid, or other shape, made with several hemispherical
(or less than hemispherical) caps joined.
It´s a common technique for the construction of large high-voltage
terminals.
Antonio Carlos M. de Queiroz"
I've seen pictures of terminals like that, including ones which were
almost cubical with rounded corners, but could never figure what good
the bumps did. Do you know?
Ed
The technique saves the work of making a large solid metal surface. Just this. The capacitance is practically the same. The breakdown voltage is somewhat smaller.
Antonio Carlos M. de Queiroz