Dog_or_man,
At what level would you say you listen to music on your system? Moderate, above moderate or loud?
At what level would you say you listen to music on your system? Moderate, above moderate or loud?
back to ask again long sorry
7) Close-up of the thin copper tube's connection to the spigot, directly below the break -- is this a picture of some sort of grounding mechanism? Should I perhaps have avoided grabbing both severed ends of the thin copper tube, to take this picture? (Nothing happened, by the way)Looks more like a 1/4" water line with a "Tap a Line" water valve connected to the main water line. Commonly used to feed an ice/water dispenser for a refrigerator. As for the electrical system, it is time for a rewire or at least an update. |
.....connecting a wire from the chassis of one and only one component (probably the preamp) to a known earth ground (such as a cold water pipe, a copper stake driven into the ground, etc). That could very well resolve the problem, it seems to me.Careful there Al.... That may not be good advice. We have no way of knowing when the house was built. We only know at this point it was around 1949 from the info given for the Square D panel. And we do not even know that for sure because the house could of been updated in 1949. The power company's 120/240V overhead lateral service drop is triplex attached to an eye bolt connected to the service entrance conductors via way of the weather head. Though the service is old looking it still looks at least late 50s or newer to me. Kind of hard to tell from just looking at the pictures.... I can't quite figure out why the main breaker is a 3 pole 60 instead of a 2 pole 60 though. That is if that is the main. I am sure at some point the main service entrance neutral conductor was connected to earth. That has been the norm for many many years. Also for many years if the incoming domestic water line is metallic then that shall be the earth connection for the service neutral conductor. At this point we can only assume the neutral is still connected to earth. Just guessing from looking at the pictures the last picture is the main panel. Again only guessing. If this is indeed the main panel then the neutral bonding to the enclosure as well the connection to earth ground was done here..... If the electrician ran a new dedicated line from this panel, which is how I read Dog_or_mans post he should have an equipment ground at the receptacle. I can't imagine an electrician installing a branch circuit today with out an equipment grounding conductor. Who knows..... What I do know the safety equipment grounding conductor needs go back to the panel the branch circuit is fed from and connected to ground there. If a ground is not present at that panel then the grounding conductor should be extended and connected in the panel where service entrance neutral is bonded, connected, to earth. 03-20-09: Dog_or_manOld house wiring Branch circuits with out equipment grounding conductors is nothing new. And yes many a home owner have replaced old worn out 2 wire receptacles with new 3 wire type. Legal to do so? No..... At any rate because there is not an equipment grounding conductor present at an outlet that does not mean the main electrical AC service is not bonded, connected, to earth. If the service entrance neutral conductor is no longer connected to earth for what ever reason I can't imagine any electrician would leave it that way. |
03-20-09: Dog_or_man Dog_or_man, If I could make a couple of suggestions. First it appears part of your equipment is plugged into an old 2 wire branch circuit fed from the old Square D panel. The new 120V 3wire dedicated branch circuit is fed from the other GE electrical panel, which I assume is the main electrical panel. I personally would not feed an audio system connected together by ics from two different panels. Plug all your equipment just into the new dedicated branch circuit...... After you connect everything to the new dedicated circuit I would like you to try an experiment. Power up your system put on some music and set the volume level to a moderate listening level. Then leave room go do something else for at least 30 minutes. After 30 minutes has past return to the room. Adjust the volume level to where you normally listen to your music. Then sit down and listen...... What is your first impression? Does everything sound ok? After 20 or 30 minutes of listening does everything still sound the same way or worse as you have experienced in the past. Post back your results. Jim |