On Mon, 23 Nov 2009 19:18:37 +0100, "Ronald" wrote:


Suppose we feed 20 watts in a p.a. but don't want to use a dummyload
in the p.a. Come on this is done all the time.


Ronold,

Your discussion gives every impression that you don't know
1. what a dummy load is
2. what it is for
3. why it is principally resistive.

Your statement above is true on the face of it, but has no meaning
beyond a tautology: you don't use a dummy load IN a p.a. because you
don't use a dummy load in a p.a. So what?

So, the direct answer to the question in the Subject line:
How can one make a dummyload from a LC circuit ?
is:
You don't

You seem to be hedging around another purpose but don't want to tip
your hand. Obfuscation does not help find answers.

73's
Richard Clark, KB7QHC