The expression "best possible" and specifically the word "possible"
included, in my thoughts but not in the words, the right margin to keep
source, load and grid impedances away from values that might produce
instability.
Thank's Rich for expliciting something I didn't point out well.
73,
Mauri I4JMY
-----Messaggio Originale-----
Da: measures <measures@vcnet.com>
A: Maurizio Panicara <i4jmy@iol.it>; AMPS <amps@contesting.com>
Data invio: sabato 2 ottobre 1999 5.18
Oggetto: Re: R: [AMPS] Conjugate matching and amplifiers
>
>I don't really agree with this statement at high power levels.
>
>An high level amplifier is not designed ONLY at a stated output power, but
>it's designed to be at the highest gain possible and for the best possible
>efficiency at such output. (Imagine a 2 MW Amp that wouldn't be designed
>under this concept....)
? In Class AB1, the highest gain possible means operating with a
relatively high value of grid terminating R. Increasing grid terminating
R means decreasing VHF stability, even for a neutralized amplifier.
>.......
ciao, Mauri
- Rich..., 805.386.3734, www.vcnet.com/measures.
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