Re: whither regenerative amplifiers?

From: Joerg (notthisjoergsch_at_removethispacbell.net)
Date: 10/28/04 

Date: Thu, 28 Oct 2004 23:15:23 GMT

Hi Alan,

>Is there a place in modern technique for regeneration (Q-multiplication)?
>
>
Last time I used it was, oh, about 30 years ago. It worked great and
spared me the expense of a crystal filter. Nowadays it is possible to
use some cheap mixer chip, filter with a crystal at a frequency where it
is low enough in cost and then mix back to where the signal needs to be.

Also, I believe the art of such fine analog schemes is to a large extent
lost. Younger engineers often wouldn't even know what you mean by that
question. Thinking back to my days back at the university, have we ever
been taught regen or Q-multiplication? Nope.

Regards, Joerg

http://www.analogconsultants.com

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