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From: email@example.com (Jorge Omar)
Subject: Re: 'Current Dumping' Amplifier Circuits ?
Date: 5 Dec 2002 05:19:43 -0800
NNTP-Posting-Date: 5 Dec 2002 13:19:43 GMT
Sorry, but your circuit would not fit under the 'current dumping'
definition as used by QUAD.
QUAD's patent refers to using a (passive) circuit so the distortion
due to the 'dumpers' is cancelled out.
Your circuit works indeed, but is not the same - there is no
distortion cancellation circuit.
Kevin McMurtrie wrote in message news:...
> In article <firstname.lastname@example.org>,
> "HG" wrote:
> >Any comments on the pro's and con's of 'Current Dumping' circuits (designed
> >by Peter Walker & (I think) Mike Albinson), as used in most Quad power
> >amplifiers since the 405?
> I've been following all these theads and doing Google searches. It
> turns out that I invented a current dumping amplifier when I was about
> 14 years old. LOL! I based it on a common trick used to keep gears
> from knocking: One or two small gears are added to the sides of a main
> gear and tensioned with springs. The small gears do little work but
> they keep the motion smooth when the direction changes.
> CheeseAmp, my old school project, has it:
> A recent amp I built has it:
> There goes all the patents. Prior art is on gears everywhere :)
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