Will try that lead Joerg. Thank you.
Although that sounds like it might be expensive....
Cheers,
Joe

"Joerg" wrote in message
...
Hi Joe,

You could contact some stores that cater to land surveyors. There are
some three-phase 115V 400Hz gyros used in that field, or at least they
used to. Since they often work off grid using a 12V battery there should
be inverters offered. I have seen one a long time ago and since these
gyros use so much power the inverter is kind of large, it was the size
of a brick.

Regards, Joerg

http://www.analogconsultants.com