Re: K3: Relay noise?

Posted by wayne burdick on Feb 04, 2009; 11:01pm
URL: http://elecraft.85.s1.nabble.com/K3-Relay-noise-tp2269079p2272192.html

It may be the delta in supply voltage on keydown slightly stimulating
one or more relay coils. The DC shift could move the contacts a tiny
bit. Or it might be an extremely small timing window, associated with
T/R switching, that puts a little glitch on a relay control line.
Either way it's nowhere near enough to change the state of a relay.

Nothing to worry about; in fact it might be therapeutic. But I'll
listen for it myself.

73,
Wayne
N6KR

>  My K3 makes a very quiet relay-like keying noise....

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