chrisn
pfm Member
Dear All
Shielded mains cables seem to have the screen connected to the 13A plug end and not the IEC female - right?
Screened signal cables have the screen earthed at the destination end. So CD to Preamp, the earth attaches to the screen at the Preamp. Preamp to Poweramp, at the Poweramp end - right?
What about power supplies and cables carrying signal and power?
My set up is -
LP12 -> P75 -> Nac82/TPX1 -> Nap140. So I can follow the above scheme for this.
I am getting some mains hum which I suspect may be caused by the earthing of the LP12 through a Lingo which is supplied through the ring main not the separatte spur which supplies the other items.
Finally what is a star earth?
Chris
Shielded mains cables seem to have the screen connected to the 13A plug end and not the IEC female - right?
Screened signal cables have the screen earthed at the destination end. So CD to Preamp, the earth attaches to the screen at the Preamp. Preamp to Poweramp, at the Poweramp end - right?
What about power supplies and cables carrying signal and power?
My set up is -
LP12 -> P75 -> Nac82/TPX1 -> Nap140. So I can follow the above scheme for this.
I am getting some mains hum which I suspect may be caused by the earthing of the LP12 through a Lingo which is supplied through the ring main not the separatte spur which supplies the other items.
Finally what is a star earth?
Chris