Ground plate wiring on Lap Steel

[ssirch]

Building a lap steel. Wanted a simple one pickup, one volume, one tone pot, electronics. Bought a neck humbucker with one hot lead and ground, a wiring kit from StewMac for
Gibson Junior and a blank steel rectangular cover plate to cover the cavity in the body. Read later that the capacitor and tone pot are under-rated for a humbucker, so ordered a 1.0uf capacitor and 500K pot. Wired this system as the directed for the wiring kit and drilled the plate to accept the pots and jack and installed them on the plate. Read later that manufacturers used a steel plate (which I just thought looked good) as a common ground. 

So my question is before I go much farther, I have wired the components grounds (on the back of the pots) as in the wiring schematic provided, but because I am also using a steel cover plate and the front of the pots and jack are connected to the plate which I assume is also creating a common grounding plate, is this a problem? Do I have to change the ground wire that is from the pickup and the ground wire that is attached to the bridge to this plate or can I leave it all as it is?

Thanks

    

[newey]

ssirch-

Hello and Welcome to G-Nutz2!

First off, your pot and cap were not "underrated for a humbucker", a 500K pot is just a suggested value, and some folks prefer other values. Same with capacitors, it's a matter of individual preference. 1.0µf; is pretty big, typically people use 0.022µf; or 0.047µf; But the size of the cap only comes into play as you turn the tone knob down, the differences in value "move the knee" (as we say) in the frequency response curve. IOW, the tone changes at a different point along the rotation and at a different rate of change. But with the tone at "10", the guitar will sound basically the same regardless of the cap value.

As for the grounding, the tone pots, etc will be grounded through the plate, assuming the plate is, in turn, connected to the output jack sleeve. If you have already grounded things to the back of the pots there is no need to change anything just because you are using the steel plate.

Do I have to change the ground wire that is from the pickup and the ground wire that is attached to the bridge to this plate or can I leave it all as it is?

No, so long as both are grounded somewhere.

[ssirch]

Perfect, Thanks