Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!bonnie!akgua!whuxlm!whuxl!houxm!vax135!cornell!uw-beaver!tektronix!hplabs!pesnta!amd!amdcad!amdimage!prls!philabs!cmcl2!seismo!brl-tgr!tgr!Morton Jim@LLL-MFE.ARPA From: Morton Jim@LLL-MFE.ARPA Newsgroups: net.ham-radio Subject: FEEDBACK IN HT Message-ID: <2420@brl-tgr.ARPA> Date: Fri, 25-Oct-85 00:33:25 EST Article-I.D.: brl-tgr.2420 Posted: Fri Oct 25 00:33:25 1985 Date-Received: Wed, 30-Oct-85 03:52:27 EST Sender: news@brl-tgr.ARPA Lines: 9 One possibility for Adam Epsteins howling is a microphonic active component. One way to find these is to tap various components with a non conducting whacker untill you either try all the parts or find one that makes noise in the speaker when you tap the component. Typically the noise in the speaker will be somewhat like the sound of hitting the component. 73 Jim WA6FWW