Why complicate matters?

All Gary needs is a diode, a capacitor, a resistor and a micro-ammeter.

Hi Reg, Thanks for the reply. That will certainly work, but I would need a
Log scale (or is it square) on the micro-ammeter. I want to be read
0-1500watts pep. Down around the 100 watt level things would get crowded. I
bought some 3-1/2 digit multimeters from a company here in the US for $3 each.
Bought 11 of them. Or I have a 0-1 ma movement that I have re-labeled the
meter face to read watts, but it is a linear scale.
73 Gary N4AST