On Tue, 29 Apr 2014 08:36:56 +0100, Andy Burns
wrote:

Simon Cee wrote:

check out 'photonics' for some amazing old
electronics... eg:

Mercury Arc Rectifier [100 yrs old]
http://www.youtube.com/watch?v=QY6V2syGnZA

Amazed that chap hasn't burned his attic down yet!

Obviously not too well up on electrical theory if it wasn't
immediately obvious to him that it was a three phase _fullwave_
rectifier designed for use with bi-phase secondary windings off a
three phase transformer. Six phase it wasn't!

--
Regards, J B Good