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- From: allana@hpmwtd.sr.hp.com (Allan Armstrong)
- Date: Thu, 24 Dec 1992 16:40:46 GMT
- Subject: Re: Carver and the FAQ
- Message-ID: <11900012@hpmwnpd2.sr.hp.com>
- Organization: HP Santa Rosa Site (SRSD MWTD)
- Path: sparky!uunet!spool.mu.edu!sdd.hp.com!hpscit.sc.hp.com!hplextra!hpl-opus!hpnmdla!hpmwtd!allana
- Newsgroups: rec.audio
- References: <92357.203715U37426@uicvm.uic.edu>
- Lines: 21
-
- steve@endgame.gsfc.nasa.gov (Steve Rezsutek) writes:
-
- >Well, I won't even pretend to give a definitive answer (ask the
- >guys in sci.electronics?), but "magnetic field power
- >amplifiers" are "real" things. They use an element, called a
- >"reactor" I believe, which I recall being something like a
- >cross between a tube and a transformer (not really, but bear
- >with me). A little bit of current flux in one winding can
- >*control* (not induce) a much larger current flux in another
- >winding. In their cruder forms they often find use as dimmers
- >for stage lights.
-
- If you look at the schematic of a Carver amp (I'm assuming that the one
- "magnetic field power amplifier" I've looked at is representative of the
- others he makes.) you'll see that the amplifier does not operate off of
- the principle stated above. Thus, Carver's name is a misnomer -- in my
- mind a sleazy lie made strictly for marketing benefit.
-
- There's enough snake oil in this business without this kind of crap.
-
- Allan
-