# Two Strat Stack Plus pickups and a single-coil-sized humbucker, 5-way blade, push/pull split volume and tone Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-stacks-plus-sch-five-way-push-pull-three-coil-split-volume-tone Two Strat Stack Plus · Single-coil-sized humbucker (bridge) · 5-way blade · Push/pull volume (3 coil split) · One tone Seymour Duncan sheet: Strat Stack Plus pickups in the neck and middle and a single-coil-sized humbucker in the bridge, on a 5-way blade with a push/pull volume titled '3 coil split', one tone and a .047 cap. The sheet prints no pot values. Pull the knob and each selected pickup drops to one coil: the middle red is grounded directly, the bridge and neck links through the blade's second pole. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-stacks-plus-sch-five-way-push-pull-three-coil-split-volume-tone.svg (back of controls) ## Parts and values - Neck Strat Stack Plus: Neck Strat Stack Plus; compatible example (Strat Stack Plus) - Middle Strat Stack Plus: Middle Strat Stack Plus; compatible example (Strat Stack Plus) - Bridge single-coil-sized humbucker: Bridge single coil sized humbucker; generic (Humbucker (four-conductor, Seymour Duncan colours)) - 5-way blade: 5-way blade; compatible example (Oak Grigsby 5-Way) - Volume (push/pull): Volume push/pull (3 coil split); 250k; compatible example (250k Push-Pull DPDT) - Tone: Tone; 250k; compatible example (CTS 250k Audio Pot) - .047 cap: .047 cap; 47nF; compatible example (Orange Drop .047µF) - Output jack: Output Jack; compatible example (Switchcraft \#11) - Ground wire to bridge: Ground wire to bridge; generic (Bridge ground wire) ## Specific to this wiring - Title: 2 STACKS \| 1 SINGLE COIL SIZED HUMBUCKER \| 1 VOLUME push/pull 3 coil split \| 1 TONE \| 5 WAY BLADE. - Legend box as printed: 'With this diagram, one push/pull pot switches all three stacks into single-coil mode. When push/pull is UP all pickups are true single coils. When push/pull is DOWN all pickups are hum-cancelling.' - Switch lead labels as printed: neck white, middle white, bridge black. - The bridge red and white run together to one lug on the blade's second row; the neck red goes to another lug on that row, and a third lug on that row is wired to the push/pull's left middle lug. The middle red goes to the push/pull's right middle lug. - The two push/pull lugs nearest the pot are jumpered together and wired to the upper Solder spot on the volume casing; the two lugs furthest from the pot are empty. - Neck and middle black and drain, and the bridge green and bare, go to the upper Solder spot on the volume casing, which also takes the ground wire to the bridge. - The volume's outer lug is bent onto the casing under the lower Solder spot, which is wired to the tone's Solder spot and to the jack sleeve. - The source does not number the blade's lugs or positions; the lugs are mapped by what they do (bridge, bridge + middle, middle, middle + neck, neck). The second pole's lugs are mapped so that the legend holds (see the terminal mapping and limits). - Legend: the grey Solder spot marks the location for ground (earth) connections. Jack: Tip (hot output); Sleeve (ground). The inner, circular portion of the jack. - The tone cap is printed '.047 cap'. ## Connections 1. Push/pull left lug nearest the pot → Volume casing (upper Solder spot) (case, black) 2. Neck black → Volume casing (upper Solder spot) (case, black) 3. Neck drain → Volume casing (upper Solder spot) (shield, bare): Drawn gold. 4. Middle black → Volume casing (upper Solder spot) (case, black) 5. Middle drain → Volume casing (upper Solder spot) (shield, bare): Drawn gold. 6. Bridge green → Volume casing (upper Solder spot) (case, green) 7. Bridge bare → Volume casing (upper Solder spot) (shield, bare): Drawn light grey beside the green. 8. Ground wire to bridge → Volume casing (upper Solder spot) (case, black) 9. Volume third lug → Volume casing (case): Lug bent onto the casing under the lower Solder spot. 10. .047 cap → Tone casing (Solder spot) (case) 11. Tone casing (Solder spot) → Volume casing (lower Solder spot) (case, black) 12. Volume casing (lower Solder spot) → Jack sleeve (wire, black) 13. Bridge black → Blade upper-left row, first lug (wire, black): Labelled 'bridge black'; arcs over the top of the blade. 14. Middle white → Blade upper-left row, second lug (wire, white): Labelled 'middle white'; the inner of the two white loops. 15. Neck white → Blade upper-left row, third lug (wire, white): Labelled 'neck white'; the outer white loop. 16. Blade upper-left row, fourth lug → Volume first lug (wire, black): Loops under the blade. 17. Bridge red → Blade lower-right row, second lug (wire, red): Runs beside the bridge white to the same lug. 18. Bridge white → Blade lower-right row, second lug (wire, white): Runs beside the bridge red to the same lug. 19. Neck red → Blade lower-right row, fourth lug (wire, red): Passes behind the end of the bridge cable on its way to the blade. 20. Blade lower-right row, first lug → Push/pull left middle lug (wire, black): The black wire carries the hops where it crosses the pickup leads. 21. Middle red → Push/pull right middle lug (wire, red) 22. Push/pull left lug nearest the pot → Push/pull right lug nearest the pot (wire, black): Short jumper. 23. Volume middle lug → Jack tip (wire, black): This wire carries the hops over the two ground wires below the volume. 24. Volume first lug → Tone outer lug (wire, black) 25. Tone middle lug → .047 cap (wire, black) ## What each position does - Position 1 · push: bridge: Bridge single-coil-sized humbucker (both coils). Source: Legend: when push/pull is DOWN all pickups are hum-cancelling. - Position 1 · pull: bridge split: Bridge single-coil-sized humbucker (split to one coil). Source: Legend: when push/pull is UP all pickups are true single coils. - Position 2 · push: bridge + middle: Middle Strat Stack Plus (both coils) and Bridge single-coil-sized humbucker (both coils) in parallel. Source: Legend: when push/pull is DOWN all pickups are hum-cancelling. - Position 2 · pull: bridge split + middle split: Middle Strat Stack Plus (split to one coil) and Bridge single-coil-sized humbucker (split to one coil) in parallel. Source: Legend: when push/pull is UP all pickups are true single coils. - Position 3 · push: middle: Middle Strat Stack Plus (both coils). Source: Legend: when push/pull is DOWN all pickups are hum-cancelling. - Position 3 · pull: middle split: Middle Strat Stack Plus (split to one coil). Source: Legend: when push/pull is UP all pickups are true single coils. - Position 4 · push: middle + neck: Neck Strat Stack Plus (both coils) and Middle Strat Stack Plus (both coils) in parallel. Source: Legend: when push/pull is DOWN all pickups are hum-cancelling. - Position 4 · pull: middle split + neck split: Neck Strat Stack Plus (split to one coil) and Middle Strat Stack Plus (split to one coil) in parallel. Source: Legend: when push/pull is UP all pickups are true single coils. - Position 5 · push: neck: Neck Strat Stack Plus (both coils). Source: Legend: when push/pull is DOWN all pickups are hum-cancelling. - Position 5 · pull: neck split: Neck Strat Stack Plus (split to one coil). Source: Legend: when push/pull is UP all pickups are true single coils. - The sheet prints no pot values; 250k stand-ins are used. - There is no three-throw push/pull: the '3 coil split' is one DPDT push/pull whose right pole grounds the middle red directly and whose left pole grounds the blade's second-pole common, which reaches the bridge red & white in positions 1-2 and the neck red in positions 4-5. - The blade's second-pole lugs are unlabelled and mapped by function: the reading that reproduces the legend (the lug next to that pole's common is live in positions 1-2, the last lug in positions 4-5). The published Everything Axe references read the same blade drawing's second pole the other way round; under that reading this sheet would ground the bridge and neck links only in positions where those pickups are off, contradicting the legend. - The legend's 'all three stacks' wording does not fit this sheet's two stacks and one single-coil-sized humbucker; it is quoted as printed. - The on-board component drawn across the bottom-coil pads of each Strat Stack Plus (no value printed) is not modelled. - The single-coil-sized bridge humbucker is modelled by a generic four-conductor humbucker; hum cancelling and phase describe the generic models. - Which shaft position grounds the push/pull's commons follows the usual push/pull behaviour (pulled joins the middle lugs to the lugs nearest the pot); the legend agrees that UP is the split setting. - Pickup resistance is not specified, so no numeric meter readings are given. ## Check before plugging in - Knob down: in each blade position the meter across the jack reads the full pickup or pickup pair selected. - Knob up: the middle red reads ground in every blade position. - Knob up, blade in position 1 or 2: the bridge red & white read ground and the neck red reads open; in positions 4 and 5 it is the other way round. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2STK\_SCH\_5W\_1Vpp3SPL\_1T, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().