# Two humbuckers, three-way blade, volume, push/pull phase bridge tone and push/pull series/parallel neck tone Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-blade-volume-push-pull-phase-bridge-tone-push-pull-series-parallel-neck-tone Two humbuckers · Three-way blade · 500k master volume · 500k push/pull bridge tone (phase) · 500k push/pull neck tone (series/parallel) Two Seymour Duncan humbuckers through a three-way blade to a 500k master volume, with a 500k push/pull tone and .047 cap for each pickup. Each humbucker's red and white leads are taped off. Pulling the bridge tone reverses the bridge pickup's phase; pulling the neck tone puts the two pickups in series with each other. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-blade-volume-push-pull-phase-bridge-tone-push-pull-series-parallel-neck-tone.svg (back of controls) ## Parts and values - Neck pickup: Upper Seymour Duncan humbucker (taken as neck); generic (Humbucker (four-conductor, Seymour Duncan colours)) - Bridge pickup: Lower Seymour Duncan humbucker (taken as bridge); generic (Humbucker (four-conductor, Seymour Duncan colours)) - 3-way blade: 3 way blade (Seymour Duncan); compatible example (CRL 3-Way Blade) - Master volume 500k: Master Volume 500k; 500k; compatible example (CTS 500k Audio Pot) - Bridge tone 500k push/pull (phase): Bridge Tone 500k phase; 500k; compatible example (500k Push-Pull DPDT) - Neck tone 500k push/pull (series/parallel): Neck Tone 500k series/parallel; 500k; compatible example (500k Push-Pull DPDT) - Bridge tone .047 cap: .047 cap (bridge tone); 47nF; compatible example (Orange Drop .047µF) - Neck tone .047 cap: .047 cap (neck tone); 47nF; compatible example (Orange Drop .047µF) - Output jack: Output Jack; compatible example (Switchcraft \#11) - Bridge ground wire: Bridge ground wire; generic (Bridge ground wire) ## Specific to this wiring - Source title: '2 HUMBUCKERS \| 1 VOLUME', '2 TONES push/pull phase, push/pull master series/parallel', '3 WAY BLADE'. The controls are labelled 'Master Volume 500k', 'Bridge Tone 500k phase' and 'Neck Tone 500k series/parallel'. - Both pickups: 'Red & White wires get soldered together and taped off.' Each humbucker stays a full humbucker; the series/parallel push/pull switches the two pickups against each other, not the coils inside one pickup. - The bridge pickup's black and green go to the two middle lugs of the bridge tone push/pull, whose top and bottom lugs are cross-wired in an X. Its bottom-left lug goes to the bridge tone casing; its top-left lug feeds both the bridge tone's left lug and the neck tone push/pull. - The neck pickup's green goes to the neck tone push/pull middle-right lug. That switch's two lugs nearest the pot are jumpered; its top-left lug goes to the blade and its top-right lug to the neck tone casing. - The blade's top-right lug carries two wires: the neck pickup's black and a wire down to the neck tone's left lug. - On the blade, the top two left lugs are jumpered, the second left lug is jumpered to the third right lug, and the bottom two right lugs are jumpered; the bottom-right lug goes to the master volume's left lug. - The master volume has two Solder spots: the bridge bare goes to the upper one and the neck bare to the lower one, where the volume's right lug is bent onto the casing. The upper spot is wired down to the bridge tone casing, which is wired on to the neck tone casing and from there to the jack sleeve. - The bridge ground wire goes to the bridge tone casing. Each tone's third lug is left unconnected. - The source legend marks the grey 'Solder' spots as the location for ground (earth) connections. - Sleeve (ground): the inner, circular portion of the jack. Tip: hot output. - The pickups, the blade lugs and the push/pull lugs are not labelled in the source; the upper pickup is taken as the neck (it feeds the neck tone), and the switch tags are mapped by what each does. ## Connections 1. Neck green → Neck tone push/pull middle-right lug (wire, green) 2. Neck bare → Master volume casing (lower Solder spot) (shield, bare) 3. Bridge green → Bridge tone push/pull middle-right lug (wire, green) 4. Bridge bare → Master volume casing (upper Solder spot) (shield, bare) 5. Bridge tone push/pull bottom-left lug → Bridge tone casing (case, black) 6. Neck tone push/pull top-right lug → Neck tone casing (case, black) 7. Master volume right lug → Master volume casing (case): Lug bent onto the casing under the lower Solder spot. 8. Master volume casing (upper Solder spot) → Bridge tone casing (case, black): Crosses two wires near the bridge tone push/pull without joining. 9. Bridge tone .047 cap → Bridge tone casing (case) 10. Neck tone .047 cap → Neck tone casing (case) 11. Bridge tone casing → Neck tone casing (case, black) 12. Neck tone casing → Jack sleeve (wire, black) 13. Bridge ground wire → Bridge tone casing (wire, black) 14. Neck black → Blade top-right lug (wire, black): Runs up and over the top of the blade. 15. Neck tone push/pull top-left lug → Blade bottom-left lug (wire, black): Hops two wires on the way up. 16. Blade top-right lug → Neck tone left lug (wire, black): Second wire on the lug; hops the neck green. 17. Blade top-left lug → Blade second left lug (wire, black): Jumper. 18. Blade second left lug → Blade third right lug (wire, black): Jumper. 19. Blade third right lug → Blade bottom-right lug (wire, black): Jumper. 20. Blade bottom-right lug → Master volume left lug (wire, black): Hops the neck green. 21. Neck red → Neck white (insulated, red): Soldered together and taped off. 22. Bridge red → Bridge white (insulated, red): Soldered together and taped off. 23. Bridge black → Bridge tone push/pull middle-left lug (wire, black) 24. Bridge tone push/pull top-left lug → Bridge tone push/pull bottom-right lug (wire, black): One arm of the X; crosses the other arm without joining. 25. Bridge tone push/pull top-right lug → Bridge tone push/pull bottom-left lug (wire, black): Other arm of the X. 26. Bridge tone push/pull top-left lug → Bridge tone left lug (wire, black): Crossed by the master volume's ground wire without joining. 27. Bridge tone push/pull top-left lug → Neck tone push/pull middle-left lug (wire, black): Loops over the switch and hops the bridge green. 28. Neck tone push/pull bottom-left lug → Neck tone push/pull bottom-right lug (wire, black): Jumper across the two lugs nearest the pot. 29. Master volume middle lug → Jack tip (wire, black): Hops the wires it crosses. 30. Bridge tone middle lug → Bridge tone .047 cap (wire) 31. Neck tone middle lug → Neck tone .047 cap (wire) ## What each position does - Neck, bridge tone down, neck tone down: Neck pickup (both coils). - Middle, bridge tone down, neck tone down: Neck pickup (both coils) and Bridge pickup (both coils) in parallel. - Bridge, bridge tone down, neck tone down: Bridge pickup (both coils). - Neck, bridge tone down, neck tone pulled (series): Neck pickup (both coils) and Bridge pickup (both coils) in series. Source: Neck tone pulled (series): the neck pickup's green feeds the bridge pickup, so both pickups play in series from the neck pickup's black. - Middle, bridge tone down, neck tone pulled (series): Neck pickup (both coils) and Bridge pickup (both coils) in series. Source: Neck tone pulled (series): the neck pickup's green feeds the bridge pickup, so both pickups play in series from the neck pickup's black. - Bridge, bridge tone down, neck tone pulled (series): No pickup reaches the output. Source: Neck tone pulled (series): the blade's bridge-side common (bottom-left lug) is left open, so the bridge position is silent. - Neck, bridge tone pulled (phase), neck tone down: Neck pickup (both coils). - Middle, bridge tone pulled (phase), neck tone down: Neck pickup (both coils) and Bridge pickup (both coils) in parallel. Source: Bridge tone pulled: the bridge pickup's phase is reversed. - Bridge, bridge tone pulled (phase), neck tone down: Bridge pickup (both coils). - Neck, bridge tone pulled (phase), neck tone pulled (series): Neck pickup (both coils) and Bridge pickup (both coils) in series. Source: Neck tone pulled (series): the neck pickup's green feeds the bridge pickup, so both pickups play in series from the neck pickup's black. Bridge tone pulled: the bridge pickup's phase is reversed. - Middle, bridge tone pulled (phase), neck tone pulled (series): Neck pickup (both coils) and Bridge pickup (both coils) in series. Source: Neck tone pulled (series): the neck pickup's green feeds the bridge pickup, so both pickups play in series from the neck pickup's black. Bridge tone pulled: the bridge pickup's phase is reversed. - Bridge, bridge tone pulled (phase), neck tone pulled (series): No pickup reaches the output. Source: Neck tone pulled (series): the blade's bridge-side common (bottom-left lug) is left open, so the bridge position is silent. - 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 does what; 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: each blade position reads the selected humbucker, or both in parallel in the middle. - Pull the neck tone: the neck and middle positions read both humbuckers in series (roughly the sum of both); the bridge position is open. - Pull the bridge tone with the blade in the middle: the two pickups play out of phase. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3B\_1V\_2TppSPppPH, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().