Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!rochester!pt.cs.cmu.edu!sei!godot!eberger
From: eberger@godot.psc.edu (Ed Berger)
Newsgroups: sci.electronics
Subject: Re: Any suggestions for building a limiter for my stereo? [GRRRR!]
Summary: Tubes are more fun :) :) :)
Message-ID: <629@godot.psc.edu>
Date: 7 Jun 89 18:14:45 GMT
References: <376@greek.UUCP> <679@uvicctr.UVic.ca.UUCP> <788@happym.wa.com> <4494@midas.STS.TEK.COM> <684@uvicctr.UVic.ca.UUCP> <388@greek.UUCP>
Reply-To: eberger@godot.UUCP (Ed Berger)
Distribution: usa
Organization: Pittsburgh Supercomputing Center
Lines: 16

In article <388@greek.UUCP> mark@greek.UUCP (Mark Jeghers) writes:
>of a compander chip.  The slope may be either variable or fixed, but for sure
>between 1:1 and 2:1.  Does this seem like a sound implementation?  How about
>the NE570/571 chip by Signetics?  No, I don't want to make tapes through my
>VCR.  Do any people out there have suggestions or ideas about this?

Look into the parts manuals for the chips, they usually have application notes,
or look in old issues of Radio-Electronics for compander articles, and of course
Audio Amateur magazine for compander articles, most use the signetic chips.
An Automatic Level control circuit may also do the job for you.  There may
be some application notes in Parts manuals from National Semiconductor also,
but I haven't looked in quite a while.

My recently aquired "Radiotron Designers Manual" circa 1942, has some circuits
for expanders and compressors, if you don't mind using vacuum tubes instead...
:-)