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3 tones from a 4 wire humbucker.

3-Way Humbucker Wiring Mod – More Tones for Your Trouble

Want to squeeze even more magic out of your Warman humbucker? One of the easiest – and most rewarding – upgrades you can make is adding a 3-position mini toggle switch. Think of it as giving your pickup a split personality… and then a third one for good measure.

Here’s what you get with the flick of a switch:

3 way humbucker wiring mod
  • Position 1 – Series Mode
    Both coils running in series for maximum beef, bite, and output. This is your humbucker’s “full English breakfast” setting – hearty and satisfying.
  • Position 2 – Single Coil Mode
    Switch to just one coil (coil 2, to be precise). Suddenly you’ve got that glassy single-coil sparkle on tap – lean, bright, and ready to cut through the mix.
  • Position 3 – Parallel Mode
    Both coils running in parallel. This gives you a punchy, hum-cancelling single-coil style tone – a bit like a P90 that’s been to finishing school.

Wiring It Up

The diagram (shown with the switch viewed from the underside) makes life simple. You’ll want to wire the switch in before sending the output to your pots or selector switch. Once the switch is in place, run the positive and negative leads onward to your controls.

A word of caution: the solder points and wires on these switches are small – really small. Think “trying to butter a crumpet with a fencing foil” small. So, take your time and keep your soldering neat to avoid any accidental shorts.


Why Bother?

Because it’s fun. And because it gives you a lot more usable tones from your guitar. Do the mod on both your neck and bridge humbuckers and you’ll unlock a whole new sonic playground. More punch, more sparkle, more character – all without buying a new guitar.

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How to wire a push /pull pot for coil tapping a humbucker.

push pull potentiometer wired for coil splitting
How to wire a push / pull switch potentiometer to coil tap a humbucker

How to Make Your Humbucker Go Solo—Literally

Ever wish your humbucker could sometimes just be a single coil, like Clark Kent turning into Superman? Well, grab your soldering iron and a push–pull pot, because you’re about to unleash your pickup’s inner hero.

Step 1: Wiring the Humdinger (Humbucker, that is)
When everything’s in its classic, rock ’n’ roll setup (push the pot in), your humbucker is doing the two-coil tango—series style. Here’s the star-studded cast:

  • Black wire: coil 1 negative → grounded (back of the pot)
  • White wire: coil 1 positive
  • Red wire: coil 2 negative
  • Green wire: coil 2 positive → to the input of your volume pot
    Roll call: black → white → red → green. Two coils, one glorious roaring tone.

Step 2: Pull the Pot—Activate Single Coil Mode
Pull that knob up like you’re summoning a magic spell, and boom—coil 1 is muted (grounded out). This leaves only coil 2 (red to green) to do its solo thing. Quieter, brighter—like switching from a blockbuster action scene to an acoustic ballad.

Step 3: Return to Duo—Push the Pot Down
Push it back down, and the full humbucker harmony is restored. Two coils singing in series once more.


Why This Works (But Without the Nerd Speak)

Think of your humbucker as two siblings stacked in line. With everything pushed in, both are holding hands (wired in series)—strong and loud. Pull the pot, and you tell the first sibling to go hide (grounded). Only the second sibling plays—subtler and shinier.


Little Side Note for Accuracy (Because Tech Matters)

Fair warning: guitar lore loves to mix up ’coil tap’ and ’coil split’. Here’s the skinny:

  • Coil split (what you’re doing here) kills one coil of a humbucker, turning it into a single coil.
  • Coil tap (a different beast) involves using a partial winding of a coil to change its voice—mostly in single coils, and not what we’re doing.

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We are exhibiting at The Guitar Show 23-24 Feb 2019

For the Umpteenth year in a row Warman Guitars will be exhibiting at The Guitar Show, in Birmingham ( UK ), on Saturday the 23rd and Sunday 24th February 2019.

You’ll be able to indulge your G.A.S to the max degree as the venue is rammed full of everything a gear head could possibly covet

Advance tickets are just £12.50 for adults and are available by clicking this link, which opens in a new tab in your browser.

https://www.theguitarshow.co.uk/tickets/