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[CQ-Contest] Re CW keying interfaces

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Subject: [CQ-Contest] Re CW keying interfaces
From: "jack schuster" <w1wef@att.net>
Date: Wed, 12 Nov 2008 16:47:00 -0500
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I have never seen a need for optoisolators and never heard of  a transistor 
failure in hundreds of interfaces I built. KISS!   JACK W1WEF 
(keep it simple...)
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