Grounding

Thanks for replies. If i have this right then, it is not necessary to ground my 395.

"If I have this right then, it is not necessary to ground my 395."

That is correct.

It appears that the only thing i did was ground my porch railing into the Denon. I am going to listen tonight for the first time with it unhooked and see if there is a difference. Of course everything recorded onto DAT or Cassette with it hooked up would have been affected.

It appears that the only thing i did was ground my porch railing into the Denon.
11-07-14: Roscoe50

Actually you may have provided a great path for lightning to fry your audio equipment.

If the apartment building is constructed of poured concrete a lot of steel rebar was used in the construction. If the railing is set in the concrete the railing is indeed earth grounded. That does not mean there is not a difference of potential, voltage, between the railing and the equipment ground of the power feeding your apartment.

Had any of your other equipment used a three wire power cord and plug plugged into a receptacle with an equipment ground there is a good chance you would have experienced a ground loop hum.

http://forums.mikeholt.com/showthread.php?t=119872