On Fri, 15 Feb 2008 19:51:18 +1300
"Gavin Melville" <gavin.melville at acclipse.co.nz> wrote:
My instant answer was motor - generator sets, but that
needed 3 phase
input, and brushless output ie. more like an alternator.
http://www.alexander.n.se/
http://en.wikipedia.org/wiki/VLF_transmitter_Grimeton
Does several kW at 17.2 kHz with a motor - generator. Though, built in
1923. But the used technic was already available in 1900.
--
tsch??,
Jochen
Homepage:
http://www.unixag-kl.fh-kl.de/~jkunz/