Quick question about coil splitting to Screw and Slug coil on two pickups

waltschwarzkopf

New member
Hi guys,

I bought a "hot rodded set" (jazz/JB) recently (which sounds awesome) and I wired it normally on an HH guitar but with two additional switches to split the neck to the screw and the bridge to the slug. I think it sounds as it should which makes me think that I did it correctly. From the SD site the colors should be:

Slug/North start: Black
Slug/North finish: White
Screw/South finish: Red
Screw/South start: Green

So for normal humbucker mode Black is hot, white and red go together and the green (and bare) go to ground. What I did is connect the White/Red to the switches and on the neck they would go to Hot in order to activate the screw could only, and on the bridge they would go to Ground to activate the slug coil only. Correct?

Later, I found another diagram where they do exactly the same for the brige, BUT for the neck they use the Red as hot, connect the black and green together and use the white as ground and then on the switch the Black/Green are sent to Ground to activate the slug coil only.

I understand that this would also work for activating the screw coil, but wouldn't the pick up be wired the wrong way around?

They way I understand it the current flows (HOT) Black -> White -> Red -> Green (GND) on normal humbucker operation. For coil splitting, screw would be (HOT) Red -> Green (GND) and slug would (HOT) Black -> White (GND). But with the other wiring the normal humbucker operation would be (HOT) Red -> Green -> Black -> White (GND) which would be finish-start-start-finish instead of the normal start-finish-finish-start. Right?

The reason I did this was to have the option of use one of the pickups as a single coil and get hum cancelling when both "singles" are on. But IF i rewire it like the other diagram I found then would the pickup be out of phase?

If I keep everything as it is, which sounds good to me, not out of phase and hum cancelling when both "singles" are on, means that I did it right, Correct?

Thanks for your help.
Walter
 
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Re: Quick question about coil splitting to Screw and Slug coil on two pickups

Yes that's a good scheme - screw and slug - to get hum cancellation. Nothing wrong with that.
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

1) Current is AC. It runs in both directions, though you're correct: for in-phase operation the current must run in opposite directions between the two coils.

2) Red to hot, white/bare to ground, black/green together and connected to ground in order to split to the screw is a perfectly valid way of doing it. This method will not put the pickup out of phase or make any other difference from the method that you used (red/white) connected to black instead of to green/bare.

Where this wiring becomes useful is when you use autosplit. Other methods for splitting involve leaving coils floating rather than shorting them.
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

I'm not new to guitar but I'm basically new to modifying my guitar. Can anyone explain how 2 humbuckers, 1 vol, 1 tone, standard 5 way switch works? I saw a diagram on Seymour duncan page but I really don't understand how it works, I've been surfing the internet for days to find information but most of them are about using a 5 way super switch and I only need the basic mod of the 5 way switch. Thanks alot!!!
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

I'm not new to guitar but I'm basically new to modifying my guitar. Can anyone explain how 2 humbuckers, 1 vol, 1 tone, standard 5 way switch works? I saw a diagram on Seymour duncan page but I really don't understand how it works, I've been surfing the internet for days to find information but most of them are about using a 5 way super switch and I only need the basic mod of the 5 way switch. Thanks alot!!!

What do you want to do with it? I use this setup on a few guitars. It gives:

Neck
Inside coils of both HBs
Both HBs
Outside coils of both HBs
Bridge

You have to flip a magnet and use a Super Switch for it to work, though.
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

What do you want to do with it? I use this setup on a few guitars. It gives:

Neck
Inside coils of both HBs
Both HBs
Outside coils of both HBs
Bridge

You have to flip a magnet and use a Super Switch for it to work, though.

I just need a basic coil splitting mod out of it. I am currently using a 3 way switch, hoping that having a 5 way switch would give me a little more option in anyway. I know the super switch could give me better options but I live in a country with a very limited access to guitar hardware and most likely a 5-way super switch might never be available here. But I saw this wiring diagram----> https://docs.google.com/gview?embed...wp-content/uploads/2016/05/2H_5WSPL_1V_1T.pdf
but i don't know how this works or which pickup is on in a certain position. I really hope you could help me. Thanks alot!!!
 
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Re: Quick question about coil splitting to Screw and Slug coil on two pickups

Hi guys,

Thanks a lot for your comment,s I'm glad that my wiring is correct. And I'm also glad to learn that the other methond still works. Just one more question:

When both humbuckers are on and one has the hot on the Black (Slug/North start) and the other on the Red (Screw/South finish), they are still in phase, right?

What do you want to do with it? I use this setup on a few guitars. It gives:

Neck
Inside coils of both HBs
Both HBs
Outside coils of both HBs
Bridge

You have to flip a magnet and use a Super Switch for it to work, though.

I've considered that as well, but the I thought that it might not be very usefull for me, I rather have the humbuckers split to a single coil or wire them in parallel to redude vaolume/gain while remaining humbucker. I did not know that you had to flip a magnet, but that makes sense in order to get hum cancelling on pos 2 & 4. I've seen some HH guitar where one of the pickups is RWRP, when you flip the magnet like you said, you reverse the polarita, right? But the wind direction is not that important?

I have a superswitch on another guitar that could work fine with a standard 5-way blade, so I may swap it with the one I have and either wire it

Neck
Neck screw
Both (full or split)
Bridge slug
Bridge

Or go for the Steve morse HSH configuration, where he has:

Neck
Neck + Bridge
Middle
Middle + Bridge
Bridge

I just need a basic coil splitting mod out of it. I am currently using a 3 way switch, hoping that having a 5 way switch would give me a little more option in anyway. I know the super switch could give me better options but I live in a country with a very limited access to guitar hardware and most likely a 5-way super switch might never be available here. But I saw this wiring diagram----> https://docs.google.com/gview?embed...wp-content/uploads/2016/05/2H_5WSPL_1V_1T.pdf
but i don't know how this works or which pickup is on in a certain position. I really hope you could help me. Thanks alot!!!

I've seen that diagram before and it seems a bit odd to use, but it is right. Basically, you have a standard 3-way on the first three positions and the other two are for splitting. The way I understand it you get:

Bridge screw
Neck slug + Bridge screw
Neck
Neck + Bridge
Bridge
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

Hi guys,

Thanks a lot for your comment,s I'm glad that my wiring is correct. And I'm also glad to learn that the other methond still works. Just one more question:

When both humbuckers are on and one has the hot on the Black (Slug/North start) and the other on the Red (Screw/South finish), they are still in phase, right?



I've considered that as well, but the I thought that it might not be very usefull for me, I rather have the humbuckers split to a single coil or wire them in parallel to redude vaolume/gain while remaining humbucker. I did not know that you had to flip a magnet, but that makes sense in order to get hum cancelling on pos 2 & 4. I've seen some HH guitar where one of the pickups is RWRP, when you flip the magnet like you said, you reverse the polarita, right? But the wind direction is not that important?

I have a superswitch on another guitar that could work fine with a standard 5-way blade, so I may swap it with the one I have and either wire it

Neck
Neck screw
Both (full or split)
Bridge slug
Bridge

Or go for the Steve morse HSH configuration, where he has:

Neck
Neck + Bridge
Middle
Middle + Bridge
Bridge



I've seen that diagram before and it seems a bit odd to use, but it is right. Basically, you have a standard 3-way on the first three positions and the other two are for splitting. The way I understand it you get:

Bridge screw
Neck slug + Bridge screw
Neck
Neck + Bridge
Bridge
Neck
Neck screw
Both (full or split)
Bridge slug
Bridge

Can you wire this this mod using a standard 5-way switch? If so, I really hope to see its diagram. Thanks a lot!!!
 
Re: Quick question about coil splitting to Screw and Slug coil on two pickups

Neck
Neck screw
Both (full or split)
Bridge slug
Bridge

Can you wire this this mod using a standard 5-way switch? If so, I really hope to see its diagram. Thanks a lot!!!

I also wanted that, but it’s not possible with a standard 5-way switch alone.

What I do is wire my standard 5-way as if it where a 3-way . So I have neck both both both bridge, and I use only three out of those. Then, with two separate switches I split the neck to the screw and the bridge to the slug, independently. But you could use a single DPDT switch and split both at the same time.

This may not be ideal, but I get 8 different combinations:

Neck full
Neck screw
Bridge full
Bridge slug
Both full
Both split
Neck screw + bridge full
Neck full + bridge slug

In fact, I just rewired my guitar like that with a new set of SD and as we speak I’m on my way home to try it out.


Sent from my iPhone using Tapatalk
 
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