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From: jchan@rtech.UUCP (Jeff Chan)
Newsgroups: sci.electronics
Subject: Appropriate use of capacitors
Message-ID: <1108@rtech.UUCP>
Date: Mon, 3-Aug-87 19:56:32 EDT
Article-I.D.: rtech.1108
Posted: Mon Aug  3 19:56:32 1987
Date-Received: Thu, 6-Aug-87 01:17:56 EDT
Reply-To: jchan@rtech.UUCP (Jeff Chan)
Organization: Relational Technology Inc, Alameda CA
Lines: 21
Keywords: capacitor


Here's a question for you old farts, audiophiles, and EEs:

What are the appropriate uses and benefits/disadvantages of all the
various types of capacitors?  For example, electrolytics are often
used in power supplies.  I suspect that polycarbonates are thermally
quite stable.

I am curious about ceramics, tantalums, electrolytics, metallized and
foil film capacitors with mylar=polyester, polystyrene, polypropylene,
polycarbonate, teflon, etc.  Please post to the net.

Jeff Chan
Summer intern at Relation Technology Inc.
(and audio hacker)

P.S. not to start any controversies, but I have heard audio differences
between electolytic and polypropylene dc blocking caps in disc players.
The film caps were pretty close, and the 'lytics did bad things to sound.
You can *easily* test this yourself.  Just put some big caps on a switch
in series through a tape loop and switch them.