So on a preamp when you mount the pot to the faceplate, whichs how it is most of the time, the chassis has to become a ground plane inevitably because the casing of the pot has to be grounded also.
My question is would it be better to somehow isolate the pot from the chassis (i can think of several examples) so that the chassis can be an earth shield instead?
2nd question regarding the pot's casing being grounded- for a true mono mono psu how would this be configured if i want the ground between L and R completely separate? The pot's casing is usually one piece.
My question is would it be better to somehow isolate the pot from the chassis (i can think of several examples) so that the chassis can be an earth shield instead?
2nd question regarding the pot's casing being grounded- for a true mono mono psu how would this be configured if i want the ground between L and R completely separate? The pot's casing is usually one piece.
The casing of the pot is not linked to any of its 3 leads.
Check this with ohm measurement.
It is perfectly fine for the pot case to be linked to the chassis and if not clearly so, it should be.
Check this with ohm measurement.
It is perfectly fine for the pot case to be linked to the chassis and if not clearly so, it should be.
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So if i wanna treat the casing as an earth shield (not connected to the circuit ground except with thermistor ect. The chassis itself connected to earth socket) Then its ok for the pot's casing to be a part of earth shield and nothing else?