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Old June 19th 08, 12:44 AM posted to rec.radio.amateur.antenna
Richard Clark Richard Clark is offline
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First recorded activity by RadioBanter: Jul 2006
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Default Efficiency and maximum power transfer

On Wed, 18 Jun 2008 17:51:34 -0500, (Richard
Harrison) wrote:

Richard Clark wrote:
"I presume it is the value at the antenna connections of the amplifier
that transforms through the plate tuning toward the plate itself to
render something more like Rp (several KOhms?"

Rp has nothing to do with a Class C amplifier which acts like a switch
presenting an impedance to average current flow by being open-circuit
most of the time.


Hi Richard,

You have no answer to what 18 - j8 ohms transforms to back through
plate tuning towards the plate. It is not responsive in kind.

As this operation is a commonplace of any treatment on the subject of
amplifier design (consult Bode, et al), then your ambiguous response
is outside of the canon of engineering.

I would intuit that you depart from Walt in this regard, and that he
will have a quantitative answer.

73's
Richard Clark, KB7QHC