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:

- 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.

