How to control speaker output (squelch)?

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Article #15456

#15456

From: Jim "Throw it over the wall" Was...
Date: Sun, 27 Dec 1992 21:11

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I have built a little dtmf controller that will 'turn on' when it receives
a specific set of dtmf codes. I want to use this to keep a speaker on my
radio quiet until the codes are received. I do not know what method is
best for switching the speaker. 

Should I use a double throw relay, and switch between the speaker and an 8ohm
resistor?

Should I terminate the speaker output at an audio amp (lm386?) and switch the
amp?

Other ideas?

tia
 - jim    washer@sequent.com

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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!ogicse!sequent!muncher.sequent.com!washer
From: washer@sequent.com (Jim "Throw it over the wall" Washer)
Newsgroups: sci.electronics
Subject: How to control speaker output (squelch)?
Message-ID: <1992Dec27.211156.2292@sequent.com>
Date: 27 Dec 92 21:11:56 GMT
Article-I.D.: sequent.1992Dec27.211156.2292
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Organization: Sequent Computer Systems, Inc.
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