# Two humbuckers with a three-way toggle, two push/pull split volumes and a master tone Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-two-push-pull-split-volumes-master-tone Two humbuckers · Three-way toggle · Two push/pull volumes (coil split) · One master tone Neck and bridge Seymour Duncan humbuckers, each with its own 500k push/pull volume, on a three-way toggle with one 500k master tone and a .047 µF capacitor. Pulling a volume knob grounds that 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-master-tone.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) - Master tone 500k: Master Tone 500k; 500k; compatible example (CTS 500k Audio Pot) - .047 cap: .047 cap (drawn green); 47nF; compatible example (Orange Drop .047µF) ## Specific to this wiring - The source titles the volumes as 500k push/pull coil split controls; each one splits only its own pickup. - On each pickup the red and white leads are soldered together onto the middle lug of the push/pull's top row, not taped off. - Each pickup's green and bare leads share the top-row lug nearest the pot, and a short wire joins that lug to the volume casing. The bottom row of each switch stays empty. - The toggle's middle lug feeds the master tone's left lug, and that same lug carries the wire to the jack tip. - The toggle frame lug goes to the neck volume casing; the neck and bridge volume casings are linked, and the bridge ground wire, jack sleeve and tone casing all end on the bridge volume casing. - The source legend marks the grey 'Solder' spots as the 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 push/pull lug nearest the pot (wire, green) 2. Neck bare → Neck push/pull lug nearest the pot (shield, bare): Drawn grey beside the green. 3. Neck push/pull lug nearest the pot → Neck volume casing (case, black) 4. Neck volume top lug → Neck volume casing (case): Lug bent onto the casing. 5. Bridge green → Bridge push/pull lug nearest the pot (wire, green) 6. Bridge bare → Bridge push/pull lug nearest the pot (shield, bare): Drawn grey beside the green. 7. Bridge push/pull lug nearest the pot → Bridge volume casing (case, black) 8. Bridge volume top lug → Bridge volume casing (case): Lug bent onto the casing. 9. Toggle frame lug → Neck volume casing (case, black) 10. Neck volume casing → Bridge volume casing (case, black) 11. Bridge ground wire → Bridge volume casing (shield, black) 12. Bridge volume casing → Jack sleeve (wire, black) 13. .047 cap → Master tone casing (case) 14. Bridge volume casing → Master tone casing (case, black) 15. Neck volume middle lug → Toggle neck lug (wire, black) 16. Bridge volume middle lug → Toggle bridge lug (wire, black) 17. Toggle middle lug → Master tone left lug (wire, black) 18. Neck white → Neck push/pull top middle lug (wire, white) 19. Neck red → Neck push/pull top middle lug (wire, red): Shares the lug with the neck white lead. 20. Neck black → Neck volume bottom lug (input) (wire, black) 21. Bridge white → Bridge push/pull top middle lug (wire, white) 22. Bridge red → Bridge push/pull top middle lug (wire, red): Shares the lug with the bridge white lead. 23. Bridge black → Bridge volume bottom lug (input) (wire, black) 24. Master tone left lug → Jack tip (wire, black) 25. Master tone middle lug → .047 cap (wire) ## What each position does - Neck, neck knob down, bridge knob down: Neck pickup (both coils). - Neck + bridge, 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 pulled, bridge knob down: Neck pickup (split to one coil). Source: Each volume's push/pull coil split splits its own pickup. - Neck + bridge, neck knob pulled, bridge knob down: Neck pickup (split to one coil) and Bridge pickup (both coils) in parallel. Source: Each volume's push/pull coil split splits its own pickup. - Bridge, neck knob pulled, bridge knob down: Bridge pickup (both coils). Source: Each volume's push/pull coil split splits its own pickup. - Neck, neck knob down, bridge knob pulled: Neck pickup (both coils). Source: Each volume's push/pull coil split splits its own pickup. - Neck + bridge, neck knob down, bridge knob pulled: Neck pickup (both coils) and Bridge pickup (split to one coil) in parallel. Source: Each volume's push/pull coil split splits its own pickup. - Bridge, neck knob down, bridge knob pulled: Bridge pickup (split to one coil). Source: Each volume's push/pull coil split splits its own pickup. - Neck, neck knob pulled, bridge knob pulled: Neck pickup (split to one coil). Source: Each volume's push/pull coil split splits its own pickup. - Neck + bridge, neck knob pulled, bridge knob pulled: Neck pickup (split to one coil) and Bridge pickup (split to one coil) in parallel. Source: Each volume's push/pull coil split splits its own pickup. - Bridge, neck knob pulled, bridge knob pulled: Bridge pickup (split to one coil). Source: Each volume's push/pull coil split splits its own 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 lug to the lug 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. - Pull one knob: only that pickup's reading drops to roughly one coil's resistance. - In the neck or bridge position, turning the selected pickup's volume to zero should read tip to sleeve as a short. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3G\_2VppSPL\_1T, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().