Cecil Moore wrote in message ...

Zero current. A voltage estimate would be V^2/600=100w, or V=245V RMS.
The net RMS voltage would be double that value so peak voltage might
be around 700 volts.

V^2/600=100w

Where did the value of V and 600 come from in this formula?

I'd like to be able to calculate the voltages also for let's say my 5 watt QRP rig.

73!

Jeff