# Two humbuckers with a three-way toggle and two push/pull split volumes Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-two-push-pull-split-volumes Two humbuckers · Three-way toggle · Two push/pull volumes (one split per pickup) Neck and bridge Seymour Duncan humbuckers, each with its own 500k push/pull volume before a three-way toggle, and no tone control. Each volume's push/pull switch grounds its own pickup's red–white coil link, so each humbucker can be split to a single coil on its own. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-two-push-pull-split-volumes.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) - Bridge volume 500k push/pull: Bridge Volume 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - Neck volume 500k push/pull: Neck Volume 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - Output jack: Output Jack; compatible example (Switchcraft \#11) - Bridge ground: Bridge Ground Wire; generic (Bridge ground wire) ## Specific to this wiring - The source labels both volumes as push/pull coil split switches. - On each pickup, the red and white leads are soldered together onto the middle lug of the switch's top row, not taped off. - The green and bare leads go to the top-row lug nearest the pot, which is wired to that pot's casing; the other switch lugs stay empty. - The toggle's frame lug runs to the neck volume casing, and the same line carries on to the bridge volume casing. - The bridge ground wire and the jack sleeve end on the bridge volume casing. - Solder = location for ground (earth) connections. - The toggle tags are not labelled in the source, so they are mapped by what each does. ## Connections 1. Neck green → Neck split switch lug nearest the pot (wire, green) 2. Neck bare shield → Neck split switch lug nearest the pot (shield, bare): Drawn grey beside the green. 3. Neck split switch lug nearest the pot → Neck volume casing (case, black): Short wire to the solder spot. 4. Neck volume top lug → Neck volume casing (case): Lug bent onto the casing. 5. Bridge green → Bridge split switch lug nearest the pot (wire, green) 6. Bridge bare shield → Bridge split switch lug nearest the pot (shield, bare): Drawn grey beside the green. 7. Bridge split switch lug nearest the pot → Bridge volume casing (case, black): Short wire to the solder spot. 8. Bridge volume top lug → Bridge volume casing (case): Lug bent onto the casing. 9. Toggle top lug → Neck volume casing (case, black) 10. Neck volume casing → Bridge volume casing (case, black): The same line runs on from the neck solder spot down to the bridge solder spot. 11. Bridge ground wire → Bridge volume casing (wire, black) 12. Bridge volume casing → Jack sleeve (wire, black) 13. Neck volume middle lug → Toggle neck lug (wire, black) 14. Bridge volume middle lug → Toggle bridge lug (wire, black) 15. Toggle middle lug → Jack tip (wire, black) 16. Neck white → Neck split switch middle lug (wire, white) 17. Neck red → Neck split switch middle lug (wire, red): Shares the lug with the neck white. 18. Neck black → Neck volume bottom lug (input) (wire, black) 19. Bridge white → Bridge split switch middle lug (wire, white) 20. Bridge red → Bridge split switch middle lug (wire, red): Shares the lug with the bridge white. 21. Bridge black → Bridge volume bottom lug (input) (wire, black) ## What each position does - Neck, neck knob down, bridge knob down: Neck pickup (both coils). - Both, neck knob down, bridge knob down: Neck pickup (both coils) and Bridge pickup (both coils) in parallel. - Bridge, neck knob down, bridge knob down: Bridge pickup (both coils). - Neck, neck knob down, bridge knob pulled: Neck pickup (both coils). - Both, neck knob down, bridge knob pulled: Neck pickup (both coils) and Bridge pickup (split to one coil) in parallel. Source: Pulling a volume splits that pickup. - Bridge, neck knob down, bridge knob pulled: Bridge pickup (split to one coil). Source: Pulling a volume splits that pickup. - Neck, neck knob pulled, bridge knob down: Neck pickup (split to one coil). Source: Pulling a volume splits that pickup. - Both, neck knob pulled, bridge knob down: Neck pickup (split to one coil) and Bridge pickup (both coils) in parallel. Source: Pulling a volume splits that pickup. - Bridge, neck knob pulled, bridge knob down: Bridge pickup (both coils). - Neck, neck knob pulled, bridge knob pulled: Neck pickup (split to one coil). Source: Pulling a volume splits that pickup. - Both, neck knob pulled, bridge knob pulled: Neck pickup (split to one coil) and Bridge pickup (split to one coil) in parallel. Source: Pulling a volume splits that pickup. - Bridge, neck knob pulled, bridge knob pulled: Bridge pickup (split to one coil). Source: Pulling a volume splits that pickup. - 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). ## Check before plugging in - Both knobs down: in each toggle position the meter across the jack reads the selected humbucker, or both in parallel in the middle. - Pulling a volume drops its own pickup's reading to roughly one coil's resistance and leaves the other pickup unchanged. - With a volume at zero, its toggle lug reads as a short to ground. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3G\_2VppSPL, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().