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Path: utzoo!linus!philabs!cmcl2!seismo!brl-tgr!tgr!d3unix!jhs@mitre-bedford.ARPA
From: jhs@mitre-bedford.ARPA
Newsgroups: net.ham-radio
Subject: Re: Kenwood TR-2500 rig problems
Message-ID: <2323@brl-tgr.ARPA>
Date: Tue, 22-Oct-85 10:30:19 EDT
Article-I.D.: brl-tgr.2323
Posted: Tue Oct 22 10:30:19 1985
Date-Received: Thu, 24-Oct-85 05:46:48 EDT
Sender: news@brl-tgr.ARPA
Lines: 12

Other possibilities for excessive crunchy noise are bad transistors (high
1/f or "flicker" noise), electrolytics installed with wrong polarity, or just
bad electrolytics (usually the reversed ones come back to life if installed
properly), or DC running through the wiper arm of a pot.  The latter condition
can be caused by leaking electrolytics, by the way.  Also loose connectors,
dirty transistor sockets, or dirty switch contacts.

I know, soak the whole radio in a sulphuric acid bath for about 24 hours, and
I guarantee you the noise will be the least of your problems.

						73,
						John S., W3IKG