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my envelope scratching....

Yeah, I know its ellipsoidal. I'm just illustrating a point that you
envelope scratch by drawing a loadline thats flat for an interstage...The envelope scratching part that I left out is that if you know Lpri, then you can calculate f-3db very easily too once you know your drivers Rp. However, what the envelope scratching isnt going to tell you is how far out on the HF you can go... With the Lundahl, strapped Alt V, its around 26 kHz due to awhole bunch of
other transformer parameters that we've neglected. For that, check out the lumped reactance models of transformers in SPICE.

Unfortunately, I'm a physical chemist and not an EE.... Some
mathematical training in my past allows me to plunge head first into
other peoples professions. Fortunately, my plungings thus far are limited to electrical engineering, and not more disastrous choices such as, lets say, civil engineering, or economics. :) :) :) On
the other hand, I'd never be dumb enough to try to be Secretary of Defense. :)

-- Jim


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