# Two single coils and a single coil sized humbucker, 5-way blade, push/pull coil-split volume Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-singles-sch-five-way-push-pull-split-volume Two single coils · Single coil sized humbucker (bridge) · 5-way blade · One push/pull volume (coil split) Seymour Duncan sheet: neck and middle single coils with a single coil sized humbucker in the bridge on a 5-way blade. The volume's push/pull grounds the humbucker's red & white when pulled, splitting it. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-singles-sch-five-way-push-pull-split-volume.svg (back of controls) ## Parts and values - Neck single coil: Neck single coil; generic (Single-coil pickup (two-conductor)) - Middle single coil: Middle single coil; generic (Single-coil pickup (two-conductor)) - Bridge single coil sized humbucker: Single coil sized humbucker (bridge); generic (Humbucker (four-conductor, Seymour Duncan colours)) - 5-way blade: 5 way blade; compatible example (Oak Grigsby 5-Way) - Volume push/pull (value not printed): Volume push \| pull coil split; 250k; generic (250k Push-Pull DPDT) - Output jack: Output Jack; compatible example (Switchcraft \#11) - Ground wire to bridge: Ground wire to bridge; generic (Bridge ground wire) ## Specific to this wiring - Solder = location for ground (earth) connections. - Jack: Tip (hot output); Sleeve (ground). The inner, circular portion of the jack. - Ground wire to bridge. - The sheet prints no position legend and does not number the switch lugs; the lugs are mapped by what they do (see the terminal mapping). - 1 volume: push \| pull coil split. ## Connections 1. Push/pull lug nearest the pot → Volume casing (Solder spot) (case, black): Black wire from the push/pull lug nearest the pot body (same row) down to the volume Solder spot (mapped sw1, the pulled contact). 2. SCH green → Volume casing (Solder spot) (case, green): SCH green leaves the cable to the Solder spot on the volume casing. 3. SCH bare → Volume casing (Solder spot) (shield, bare): SCH bare (drawn grey beside the green) to the same Solder spot. 4. Neck black → Volume casing (Solder spot) (case, black): Neck single-coil black runs straight down to the volume Solder spot. 5. Middle black → Volume casing (Solder spot) (case, black): Middle single-coil black runs straight down to the volume Solder spot. 6. Ground wire to bridge → Volume casing (Solder spot) (case, black): 'Ground wire to bridge' leaves the volume Solder spot (arrow). 7. Volume bottom lug → Volume casing (Solder spot) (case): The volume's bottom lug is bent onto the casing under the Solder spot. 8. Volume casing (Solder spot) → Jack sleeve (case, black): Black wire from the volume Solder spot to the jack Sleeve (ground); it carries the hop over the tip wire. 9. SCH black → Switch upper row, fourth lug (wire, black): SCH black leaves the cable, arcs up over the controls and lands on the upper-row lug at the far end from the common (mapped T3, bridge throw, positions 1-2). 10. Middle white → Switch upper row, third lug (wire, white): Middle single-coil white runs in the lower of the two white leads to the third upper-row lug from the common (mapped T1, positions 2-4). 11. Neck white → Switch upper row, second lug (wire, white): Neck single-coil white passes the middle pickup and runs as the outer white lead to the upper-row lug next to the common (mapped T2, positions 4-5). 12. Switch upper row, first lug → Switch lower row, fourth lug (wire, white): White jumper from the upper-row end lug (the common) along under the row to the opposite-row lug at the far end (mapped T8, the second pole's common, diagonally opposite). 13. Switch lower row, fourth lug → Volume top lug (wire, white): White wire from that opposite-row end lug down to the volume's top lug (input). 14. SCH white → Push/pull middle lug (wire, white): SCH white leaves the cable beside the red and lands on the push/pull's middle lug of the row nearest the SCH (mapped sw2, pole A common). 15. SCH red → Push/pull middle lug (wire, red): SCH red lands on the same push/pull middle lug with the white. 16. Volume middle lug → Jack tip (wire, white): White wire from the volume's middle lug down to the jack Tip (hot output). ## What each position does - Bridge · pushed: Bridge single coil sized humbucker (both coils). Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. - Bridge · pulled: Bridge single coil sized humbucker (split to one coil). Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. Pulled grounds the SCH red & white ('push \| pull coil split'). - Bridge + middle · pushed: Middle single coil and Bridge single coil sized humbucker (both coils) in parallel. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. - Bridge + middle · pulled: Middle single coil and Bridge single coil sized humbucker (split to one coil) in parallel. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. Pulled grounds the SCH red & white ('push \| pull coil split'). - Middle · pushed: Middle single coil. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. - Middle · pulled: Middle single coil. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. The SCH is not selected, so pulling changes nothing here. - Middle + neck · pushed: Neck single coil and Middle single coil in parallel. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. - Middle + neck · pulled: Neck single coil and Middle single coil in parallel. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. The SCH is not selected, so pulling changes nothing here. - Neck · pushed: Neck single coil. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. - Neck · pulled: Neck single coil. Source: The sheet prints no position legend; this is the standard 5-way contact table with the lugs mapped by function. The SCH is not selected, so pulling changes nothing here. - The sheet prints no pot values; 250k stand-ins are used. - The single coil sized humbucker is modelled by a generic four-conductor humbucker; hum cancelling and phase describe the generic model. - The sheet does not say which knob position splits beyond 'push \| pull coil split'; this follows the usual push/pull behaviour (pulled joins the middle lugs to the lugs nearest the pot). - Pickup resistance is not specified, so no numeric meter readings are given. ## Check before plugging in - Knob pushed: positions 1 and 2 read the full humbucker. - Knob pulled: positions 1 and 2 read one humbucker coil; the red & white read ground. ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 1SCH\_2S\_5W\_1VppSPL, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().