# Two humbuckers with a three-way blade, one volume and two push/pull coil-split tones Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-blade-one-volume-two-push-pull-split-tones Two humbuckers · Three-way blade · One volume · Two push/pull tones (each splits its own pickup) Neck and bridge Seymour Duncan humbuckers, each with its own 500k push/pull tone and .047 µF capacitor ahead of a three-way blade, then one 500k master volume. Each tone's push/pull grounds its own pickup's red–white coil link, so pulling a tone knob splits that humbucker. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-blade-one-volume-two-push-pull-split-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 Blade Switch: 3 Way Blade; compatible example (CRL 3-Way Blade) - Neck tone 500k push/pull: Neck Tone 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - .047 cap (neck): .047 cap (neck tone); 47nF; compatible example (Orange Drop .047µF) - Bridge tone 500k push/pull: Bridge Tone 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - .047 cap (bridge): .047 cap (bridge tone); 47nF; compatible example (Orange Drop .047µF) - Volume 500k: Volume 500k; 500k; compatible example (CTS 500k Audio Pot) - Output Jack: Output Jack; compatible example (Switchcraft \#11) - Bridge Ground Wire: Bridge ground wire; generic (Bridge ground wire) ## Specific to this wiring - The source titles the two tones as push/pull coil split. - Each pickup's red and white leads are soldered together onto the middle lug of its own tone's push/pull bottom row. - On each push/pull, the bottom-row lug nearest the pot has a short wire to that pot's solder spot; the other switch lugs stay empty. - Each pickup's black lead goes to the top lug of its own tone pot, and that lug continues to a blade common. - Each .047 cap sits between its tone's middle lug and that tone's casing. - Three short jumpers join four blade lugs into one output, which goes to the volume's input lug; the volume's middle lug goes to the jack tip. - A wire runs from the neck tone's solder spot down to the bridge tone's, carrying a hop over the bridge black; the bridge ground wire and the jack sleeve also end on the bridge tone casing, which links on to the volume casing. - Solder = location for ground (earth) connections. - The blade tags are not labelled in the source, so they are mapped by what each does. ## Connections 1. Neck green → Neck tone casing (case, green): Ends on the neck tone's solder spot. 2. Neck bare → Neck tone casing (shield, bare): Drawn grey beside the green. 3. Bridge green → Bridge tone casing (case, green): Ends on the bridge tone's solder spot. 4. Bridge bare → Bridge tone casing (shield, bare): Drawn grey beside the green. 5. Neck .047 cap → Neck tone casing (case, black): The cap's other leg goes to the neck tone's solder spot. 6. Bridge .047 cap → Bridge tone casing (case, black): The cap's other leg goes to the bridge tone's solder spot. 7. Volume right lug → Volume casing (case): Lug bent onto the casing. 8. Neck tone casing → Bridge tone casing (case, black): Carries a hop over the bridge black. 9. Bridge tone casing → Volume casing (case, black) 10. Bridge tone casing → Jack sleeve (case, black) 11. Bridge ground wire → Bridge tone casing (shield, black): 'Bridge Ground Wire' ends on the bridge tone's solder spot. 12. Neck push/pull lug nearest the pot → Neck tone casing (case, black): Short wire to the solder spot. 13. Bridge push/pull lug nearest the pot → Bridge tone casing (case, black): Short wire to the solder spot. 14. Neck tone top lug → Switch top-right lug (common) (wire, black): The wire loops up over the switch to its top-right lug. 15. Bridge tone top lug → Switch bottom-left lug (common) (wire, black): The wire runs right and up to the switch's bottom-left lug. 16. Switch top-left lug → Switch second left lug (bridge, black): Short jumper between the switch's top two left lugs. 17. Switch second left lug → Switch third right lug (bridge, black): Jumper from the second left lug down to the third right lug. 18. Switch third right lug → Switch bottom-right lug (bridge, black): Jumper between the switch's bottom two right lugs. 19. Switch bottom-right lug → Volume left lug (input) (wire, black): Near the volume it hops over the tip wire. 20. Neck white → Neck push/pull middle lug (wire, white) 21. Neck red → Neck push/pull middle lug (wire, red): Shares the lug with the neck white. 22. Neck black → Neck tone top lug (wire, black) 23. Bridge white → Bridge push/pull middle lug (wire, white) 24. Bridge red → Bridge push/pull middle lug (wire, red): Shares the lug with the bridge white. 25. Bridge black → Bridge tone top lug (wire, black): Passes a hop in the vertical ground wire between the tones. 26. Neck tone middle lug → Neck .047 cap (wire, black): The cap is drawn on the back of the neck tone. 27. Bridge tone middle lug → Bridge .047 cap (wire, black): The cap is drawn on the back of the bridge tone. 28. Volume middle lug → Jack tip (wire, black) ## What each position does - Neck, both tones down: Neck pickup (both coils). - Both, both tones down: Neck pickup (both coils) and Bridge pickup (both coils) in parallel. - Bridge, both tones down: Bridge pickup (both coils). - Neck, neck tone pulled, bridge tone down: Neck pickup (split to one coil). Source: Pulling a tone splits that pickup. - Both, neck tone pulled, bridge tone down: Neck pickup (split to one coil) and Bridge pickup (both coils) in parallel. Source: Pulling a tone splits that pickup. - Bridge, neck tone pulled, bridge tone down: Bridge pickup (both coils). - Neck, neck tone down, bridge tone pulled: Neck pickup (both coils). - Both, neck tone down, bridge tone pulled: Neck pickup (both coils) and Bridge pickup (split to one coil) in parallel. Source: Pulling a tone splits that pickup. - Bridge, neck tone down, bridge tone pulled: Bridge pickup (split to one coil). Source: Pulling a tone splits that pickup. - Neck, both tones pulled: Neck pickup (split to one coil). Source: Pulling a tone splits that pickup. - Both, both tones pulled: Neck pickup (split to one coil) and Bridge pickup (split to one coil) in parallel. Source: Pulling a tone splits that pickup. - Bridge, both tones pulled: Bridge pickup (split to one coil). Source: Pulling a tone 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). - The simulator's position summary names one tone control only; each tone sits on its own pickup's lead ahead of the blade. ## Check before plugging in - Both knobs down: in each blade position the meter across the jack reads the selected humbucker, or both in parallel in the middle. - Pulling a tone drops its own pickup's reading to roughly one coil's resistance and leaves the other pickup unchanged. - 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\_3B\_1V\_2TppSPL, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().