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W2DU's Reflections III is now available from CQ Communications, Inc.
On Mon, 24 May 2010 07:06:44 -0700 (PDT), Keith Dysart
wrote: I have often wondered if the manufacturer's tuning procedures had anything to do with maximizing output power transfer, or were they, in fact, optimizing some other aspect. This resolves quickly in measurement - no need to wonder unless it offers some secondary benefit of not measuring things. An alternative is to simply examine conventional design considerations. One can add to Plate current by throwing a lot of power into the grid. More plate current yields more output power results, but grid lifetime plumments. One can do innumerable things to force an artificial outcome that strains to prove a distorted logic. Examining a suite of sources, in initial conditions that are average for their application quickly reveals a common design paradigm. ****** The fundamental answer to your question is the manufacturer ultimately designs for market domination, or maximum investment return (the two don't necessarily converge). Thus the marketplace gives us a spectrum of choice and the norm of the distribution reveals cautious design that has its eye on a value exchange expressed in money. THAT is the only optimization you can expect = in an honest barter, you get what you pay for. 73's Richard Clark, KB7QHC |
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