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In Reply to: RE: Tiny fractions of an ohm (nt) posted by Triode_Kingdom on September 13, 2014 at 11:23:37:
What I suspect was occurring was that the signal was so thoroughly clipped from being shorted that what remained was essentially a square wave. Even though the input was theoretically grounded there is a low but non-zero impedance betw input jack and the selector switch/ground point. It seems that HF harmonics of the clipped signal were radiating from the non-shielded portions of the shorted input to the non-shielded portions of the active input. Obviously, this condition is layout and circuit dependent among other things and may not be an issue in all cases. Regardless, I feel it's not a great design practice to short a signal to ground to get rid of it. YMMV
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- RE: Tiny fractions of an ohm (nt) - Steve O 12:09:23 09/13/14 (0)
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