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Re: [Amps] 200 Watt Fast Relay

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Subject: Re: [Amps] 200 Watt Fast Relay
From: Bill Fuqua <>
Date: Tue, 10 Jul 2007 14:24:16 -0400
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Here is a problem I have with relay specifications. Usually, for weak 
signal applications we use gold plated contact switches and relays. Since 
most relays or switches are normally exposed to air, oxidation can form and 
weak signals can't always be conducted between them. Naturally in a vacuum 
any good conductor can be used in the contacts  because oxidation can't 
form with our air. Years ago it was suggested that as long as the relay had 
a set of contacts that rub as they close,  this friction would break thru 
any crusty oxidation and clean the contacts. But, I can't see that working 
100% of the time.

Bill wa4lav

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