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- From: henry@monod.biol.mcgill.ca (Henry A. Pasternack)
- Newsgroups: rec.audio
- Subject: Re: Mr. Pierce responds to Re: Class C amplifiers, says Mr. Pierce.
- Message-ID: <41619@unix.SRI.COM>
- Date: 22 Dec 92 19:31:20 GMT
- Sender: news@unix.SRI.COM
- Reply-To: henry@monod.biol.mcgill.ca (Henry A. Pasternack)
- Organization: SRI International
- Lines: 20
-
-
- Bob Myers writes:
-
- >Henry, you're going to confuse a lot of people with that last bit - most
- >commercial AM transmitters DO use a class C output stage. The trick is
- >that the modulation is done at the output - the output stage is NOT amplifying
- >an already-modulated signal, and so amp linearity is unimportant. (SSB
- >transmitters are another story altogether, even though SSB is a "subset"
- >of AM.)
-
- Hmmm. I didn't know that.
-
- I guess when you get into very high-power stuff, this kind of circuit
- becomes practical or desirable. My frame of reference comes from my ham
- redio days, when a typical transmitter would run a pair of 6146B's in
- Class C for CW and Class AB1 for SSB or AM.
-
- Thanks for the info.
-
- -Henry
-