# Two humbuckers, three-way toggle, push/pull split volume and two tones Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-push-pull-split-volume-two-tones Two humbuckers · Three-way toggle · One push/pull volume (splits both) · Two tones Neck and bridge Seymour Duncan humbuckers, each with its own 500k tone and .047 µF capacitor ahead of a three-way toggle, then one 500k master volume. The volume's push/pull grounds both pickups' red–white coil links, so pulling the knob splits both humbuckers. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-push-pull-split-volume-two-tones.svg (back of controls) ## Parts and values - Neck Pickup: Seymour Duncan Neck Pickup; generic (Humbucker (four-conductor, Seymour Duncan colours)) - Bridge Pickup: Seymour Duncan Bridge Pickup; generic (Humbucker (four-conductor, Seymour Duncan colours)) - 3-Way Toggle: 3 way toggle (unlabelled); compatible example (Switchcraft 3-Way Toggle) - Master Volume 500k push/pull: Master Volume 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - Neck Tone 500k: Neck Tone 500k; 500k; compatible example (CTS 500k Audio Pot) - Output Jack: Output Jack; compatible example (Switchcraft \#11) - Bridge Tone 500k: Bridge Tone 500k; 500k; compatible example (CTS 500k Audio Pot) - Bridge ground: Bridge ground wire; generic (Bridge ground wire) - Neck .047 cap: .047 cap on the neck tone (drawn green); 47nF; compatible example (Orange Drop .047µF) - Bridge .047 cap: .047 cap on the bridge tone (drawn green); 47nF; compatible example (Orange Drop .047µF) ## Specific to this wiring - The source says the push/pull split switch splits both pickups. - Each pickup's red and white leads are soldered together onto one middle lug of the switch, not taped off: bridge on the left column, neck on the right. - The two bottom switch lugs (nearest the pot) are jumpered together and wired to the volume casing; the top row stays empty. - Each pickup's black lead goes to the outer lug of its own tone pot, and that lug continues to the toggle. - The neck green and bare, the toggle's frame lug and the bridge ground wire end on the neck tone casing; the bridge green and bare end on the volume casing; the jack sleeve ends on the bridge tone casing. - The three pot casings are linked: neck tone to volume, volume to bridge tone. - The toggle tags are not labelled in the source, so they are mapped by what each does. ## Connections 1. Neck green → Neck tone casing (case, green) 2. Neck bare shield → Neck tone casing (shield, bare): Drawn grey beside the green. 3. Toggle frame lug → Neck tone casing (case, black) 4. Neck .047 cap → Neck tone casing (case) 5. Bridge green → Volume casing (case, green) 6. Bridge bare shield → Volume casing (shield, bare): Drawn grey beside the green. 7. Bridge .047 cap → Bridge tone casing (case) 8. Push/pull left bottom lug → Volume casing (case, black) 9. Volume right lug → Volume casing (case): Lug bent onto the casing. 10. Neck tone casing → Volume casing (case, black) 11. Bridge ground wire → Neck tone casing (wire, black) 12. Volume casing → Bridge tone casing (case, black) 13. Bridge tone casing → Jack sleeve (wire, black) 14. Neck tone top lug → Toggle neck lug (wire, black) 15. Bridge tone top lug → Toggle bridge lug (wire, black) 16. Toggle middle lug → Volume left lug (input) (wire, black) 17. Neck red → Push/pull right middle lug (wire, red) 18. Neck white → Push/pull right middle lug (wire, white): Shares the lug with the neck red. 19. Neck black → Neck tone top lug (wire, black) 20. Bridge red → Push/pull left middle lug (wire, red) 21. Bridge white → Push/pull left middle lug (wire, white): Shares the lug with the bridge red. 22. Bridge black → Bridge tone top lug (wire, black) 23. Neck tone middle lug → Neck .047 cap (wire) 24. Bridge tone middle lug → Bridge .047 cap (wire) 25. Push/pull right bottom lug → Push/pull left bottom lug (wire, black): Short jumper along the bottom row. 26. Volume middle lug → Jack tip (wire, black) ## What each position does - Neck, knob down: full humbucker: Neck Pickup (both coils). - Both, knob down: both humbuckers: Neck Pickup (both coils) and Bridge Pickup (both coils) in parallel. - Bridge, knob down: full humbucker: Bridge Pickup (both coils). - Neck, knob pulled: single coil: Neck Pickup (split to one coil). Source: The split switch splits both pickups. - Both, knob pulled: both split: Neck Pickup (split to one coil) and Bridge Pickup (split to one coil) in parallel. Source: The split switch splits both pickups. - Bridge, knob pulled: single coil: Bridge Pickup (split to one coil). Source: The split switch splits both pickups. - Hum cancelling and phase describe the generic pickup models, not a measurement of any specific Seymour Duncan model. - Pickup resistance is not specified, so no numeric meter readings are given. - The source does not say which knob position splits; this follows the usual push/pull behaviour (pulled joins the middle lugs to the lugs nearest the pot). - The simulator's position summary names one tone control only; each tone sits on its own pickup's lead ahead of the toggle, so in the middle position both tones act on the combined signal. ## Check before plugging in - Knob down: in each toggle position the meter across the jack reads the selected humbucker, or both in parallel in the middle. - Knob up: each reading drops to roughly one coil's resistance. - With the volume at zero, tip and sleeve should read as a short in every position. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3G\_1VppSPL\_2T, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().