Wednesday, February 5, 2014

Need help with guitar wiring?




victor_pie


I'm putting together a guitar with two single coil pickups. I decided to use the layout presented in the fourth picture featured on this webpage (http://flashbacksoftomorrow.tripod.com/pickups.html) with 2 volume controls and one tone control, but there are a couple parts of this diagram that confuse me.

First off, is there a reason that 3 wires come out from each pickup? I only have two wires to work with. I know that two of the wires converge into one in the diagram so I'm assuming only two are in use. Also, does it matter which wire I designate to be the black wire and red wire?

I also see that I'm supposed to solder the first pin of volume 1 to the first pin of volume 2. A line then continues out to the second pin of the tone knob. This implies that I need to connect the first pin of volume 2 to the second pin of the tone knob as well right?

I also use a different kind of output jack (like this http://www.amazon.com/Como-Cylinder-Electric-Guitar-Output/dp/B00ARBCJQU/ref=sr_1_3?ie=UTF8&qid=1375137821&sr=8-3&keywords=output+jack) so where is the ground on that type of output jack compared to where it'd be on a more conventional piece (http://www.guitarnucleus.com/wiring.html#jackwire)?

Thank you for your help in advance. I know these are probably simple questions, but I'm just trying to be cautious to avoid having to undo any potential mistakes.
The first hyperlink isn't working due to the parentheses. Click this one http://flashbacksoftomorrow.tripod.com/pickups.html



Answer
OK...let's see if we can break this down for you.

The diagram you provided the link to does indeed show 3 wires from the pickup. Two of the wires are connected directly to the coil, while the 3rd is the shield. A pickup with this wiring configuration allows you to play with the phase of the pickups relative to each other. On a Fender Strat (which has 3 pickups), the middle one is out of phase with the neck and bridge. When you select the middle pickup along with one of the others, you get hum cancellation and a very different sound (than if the pickups were in phase).

If your pickups only have 2 wires, then I'm guessing they aren't shielded. Does it make a difference how you hook them up? Yes and no. If you hook them both up the same (say, black is your ground point), then no. If you hook them up where the black is ground on one, and red on the other, then you have wired them out of phase. That may or may not be a useful configuration for you. I would say try it both ways...you're not going to hurt anything.

Pin 1 of each volume control does route to pin 2 of tone...you're correct there.

Now, as far as the jack you're using there's no real "standard" on what goes to where. You have a stereo jack, and that's fine. They're typically used in guitars with active electronics to switch the battery on and off. But if you're not using any active components, you'll just hook up to the tip (from the tone control) and sleeve (ground). There should be some kind of instructions with the jacks as to how to wire it up.

Good luck.

Greetings from Austin, Tx
Ken



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