Axelman8
Power User
Ahh I see, then i mean this one imho you made a circuit and that is not in the schema
Yes but first I don’t have put this one and the guitar still buzzing, so I decide to put this one too and nothing changed neither
. With or without this ground it’s exactly the same 
.
Be aware that some people (@Andy Eagle for instance if I'm not mistaken) think copper tape cuts highs to some degree.
Ah? If it is just a little bit that’s not really a problem.
. In the end I have maybe 7 guitars cooper tape and it’s ok. Sometimes the amount of buzz was better sometimes not that much … but it cannot be worst so …
The noise that you've described... "ground noise stop when I touch the high E strings" is most often as a result of the pickup coils themselves. When you add yourself by touching the strings or the metal body of the guitar cord you are extending the "ground plane." It's just means the guitar is more grounded. The pickup coils are very excellent inductors and the coil poles (screws and slugs) under each string are intended to get all the sound from the guitar... but they don't. A small percentage of sound will come from planet Earth, some of this noise can be shielded away by applying foiled copper around the sides (or around the coils/bobbins) and attaching that shielding to ground. None of these will completely solve the problem, but often it's more than enough. EMG pups are low-impedance and are fully shielded, they are as noiseless as it gets.View attachment 115937
So I have grounded the 4 knobs and it quite the same result.
The ground noise stop when I touch the high E strings.
Let see if the input jack is well soldered . And then it can be the bridge that is not grounded, or just these retro pickups that are noisy as hell.
Interesting thank you . I am about to copper the control cavity and the 3 way knob cavity. Not the pickup cavity this time as I read that in the end pickups are already grounded . Hard to know what to do really with all the information that differ in the net
I agree too
I use KAPTON (Polyamide) tape - on top of Copper shielding in susceptible areas (like control cavity cover) to prevent exactly this from happening. It's available on Amazon in different sizes.... Because the copper tape with some cables touching it shortcut the signal
Saw plenty of that stuff when I worked at the coil winding factory 34-35 years ago.
That was going to be my suggestion as well….since he already took the plate out…..leave it out. Although then, he might need short shaft pots.
Actually, it is wired per the "modern" standard. '50s wiring connects the tone circuit to the wiper of the volume pot, whereas I can see the cap going to your tone controls is connected to the pickup wire at the end lug. None of that has an effect on noise, though -- just on how the tone pot operates and loads the signal when the volume pot is not at maximum. The reason the guitar gets quieter when you touch the strings is the bridge ground. You are becoming part of the guitar's shielding, and funneling any electrical noise you accumulate to ground, so that it does not instead get caught by the pickups and wiring. This is why electric guitars can electrocute you if you touch a live circuit while holding the guitar strings, or if the ground on your amp is not correct and has live current on it, and you touch something grounded. IIRC, the latter is what took out Keith Relf in his tub playing the guitar. The former nearly took ME out in 1988 at a Halloween party in a poorly-wired house in Trenton, NJ....
The existing pots will be fine. Add some internal-toothed lockwashers (if there aren't any between pot and plate to reuse) and use the extra nuts to set the pot height on the outside so that they are all even and look good. That was my first mod to the LP Studio I bought back in '08 or so: remove the plate and wire proper grounds. Gibson does them with the plate to make assembly quicker, but they don't back up the mechanical ground with a proper soldered ground because it'd cost them a dollar more....
