>Mark said: "The PSU filter capacitor is really too large (130 uF) and the >amount of energy it holds when charged to 5 kV is frankly scary"< In human terms of being scared, 5 kV at 130 uF should be the same scared as 5 kV at 30 uF. In transmitter terms, I think a safely designed HI-C power supply would not pose a problem. 73, Ken W2DTC