ORIGINAL MESSAGE: On Sun, 29 Jul 2012 23:32:00 -0700, you wrote: > >Bill ... can you change the plate voltage to 4Kv,5Kv .... 6Kv ... >And give results? > >Would the drive/efficiency stay the same? > >Mike KC7NOA REPLY: No, my PS is fixed at 2900 V under load. That would be an interesting test. 73, Bill W6WRT