tt ground to phono section. solid copper?
It has nothing to do with Mother Earth or the safety equipment ground found at the mains wall receptacle. The ground you are connecting the TT ground wire to is the signal ground of the phono preamp. |
@jea48 is kind of mostly right. It's not a safety ground, so practically any gauge will do, but ...when it connects at the phonograph preamplifier's chassis I believe, which in turn should connect to the earth through the preamp's AC plug, when present. This is another reason why the safety ground on a preamp should never b e disabled. A lethal voltage could develop at the tonearm or fire created when that wire melts due to an AC short in the preamp otherwise. Of course, it's very very rare. Best, Erik |
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The equipment ground is not involved. The Earth does not possess some magical, mystical, power. It does nothing for the SQ of an audio system. Same for the safety equipment ground. The purpose of the equipment ground, when used, is to provide a low resistive path for ground fault current to return to the source neutral conductor. |
