Got a new (to me) older audio stack. Not used to some of the earlier electronics conventions.
The system has two pronged cords, and has external grounding. How much danger am I looking at here? I’m not 100% certain how to use it properly.
Got a new (to me) older audio stack. Not used to some of the earlier electronics conventions.
The system has two pronged cords, and has external grounding. How much danger am I looking at here? I’m not 100% certain how to use it properly.
The ground lugs are for a turntable, not a power ground. The audio signal from a record player is incredibly tiny, which means it needs more amplification stages (usually if you have a phono input, it has another pre amp stage). Because of this it is important that the turntable and pre-amp have a common ground reference to eliminate things like a DC offset or ground loop which would otherwise be amplified more than other audio artifacts from other sources.
The strap looks like an antenna ground for an AM input
Sounds like you’re confirming what I’ve been hearing from other people, that neither of these grounds contains any real danger?
And as for grounding the turntable, that makes a bit of sense, however I have a fairly modern one and I’ll have to check it. I don’t know that it actually has an external ground beyond the three prong plug.
Is grounding of the turntable still relevant in that case?
I think most modern turntables have a built in pre-amp so it’s less of an issue. If it doesn’t have a ground lug itself then it’s probably not an issue.
Yes, I believe I have a selector switch that allows me to select either the internal pre and for an external. I was thinking of going with the old external for a bit of additional configurability.