On Sun, 30 Mar 2008 17:33:39 +1000, you wrote: >on that note, what is the biggest valve ever made rated >at... Biggest I know of had an output of 500KW, I think.... used at a U.S. Navy VLF transmitter. Walk-in, with replaceable elements.... _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla