# Two humbuckers with a three-way toggle, two volumes and a push/pull split tone

Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-two-volumes-push-pull-split-tone

Two humbuckers · Three-way toggle · Two volumes · One push/pull tone (splits both)

Neck and bridge Seymour Duncan humbuckers, each with its own 500k volume before a three-way toggle, and a 500k master tone with a .047 µF capacitor. The tone's push/pull switch grounds the red–white coil link of both pickups at once, so pulling the knob turns each humbucker into a single coil.

Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-three-way-toggle-two-volumes-push-pull-split-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 Switch; compatible example (Switchcraft 3-Way Toggle)
- Bridge volume 500k: Bridge Volume 500k; 500k; compatible example (CTS 500k Audio Pot)
- Neck volume 500k: Neck Volume 500k; 500k; compatible example (CTS 500k Audio Pot)
- Output jack: Output Jack; compatible example (Switchcraft \#11)
- Bridge ground: Bridge Ground Wire; generic (Bridge ground wire)
- Master tone 500k push/pull: Master Tone 500k (push/pull Split); 500k; compatible example (500k Push-Pull DPDT)
- .047 cap: .047 cap (drawn green); 47nF; compatible example (Orange Drop .047µF)

## Specific to this wiring

- The source says the tone's push/pull split splits both pickups.
- Each pickup's red and white leads are soldered together onto one middle lug of the tone's switch, not taped off: bridge on the left column, neck on the right.
- The two switch lugs in the row nearest the pot are jumpered together and wired to the tone casing; the row furthest from the pot stays empty.
- The master tone takes its signal from the jack tip, after the toggle.
- The bridge ground wire and the toggle's frame lug end on the neck volume casing; the jack sleeve ends on the tone casing.
- Solder = 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 volume casing (case, green)
2. Neck bare shield → Neck volume casing (shield, bare): Drawn grey beside the green.
3. Bridge green → Bridge volume casing (case, green)
4. Bridge bare shield → Bridge volume casing (shield, bare): Drawn grey beside the green.
5. Bridge volume right lug → Bridge volume casing (case): Lug bent onto the casing.
6. Neck volume right lug → Neck volume casing (case): Lug bent onto the casing.
7. Toggle top lug → Neck volume casing (case, black)
8. Bridge volume casing → Neck volume casing (case, black)
9. Bridge ground wire → Neck volume casing (wire, black)
10. Neck volume casing → Tone casing (case, black)
11. Tone casing → Jack sleeve (wire, black)
12. .047 cap → Tone casing (case)
13. Split switch left lug nearest the pot → Tone casing (case, black)
14. Bridge volume middle lug → Toggle bridge lug (wire, black)
15. Neck volume middle lug → Toggle neck lug (wire, black)
16. Toggle middle lug → Jack tip (wire, black)
17. Neck black → Neck volume left lug (input) (wire, black)
18. Neck white → Split switch right middle lug (wire, white)
19. Neck red → Split switch right middle lug (wire, red): Shares the lug with the neck white.
20. Bridge black → Bridge volume left lug (input) (wire, black)
21. Bridge white → Split switch left middle lug (wire, white)
22. Bridge red → Split switch left middle lug (wire, red): Shares the lug with the bridge white.
23. Tone left lug → Jack tip (wire, black)
24. Tone middle lug → .047 cap (wire)
25. Split switch left lug nearest the pot → Split switch right lug nearest the pot (wire, black): Short jumper along the row nearest the pot.

## What each position does

- Neck, knob down: full humbucker: Neck pickup (both coils).
- Both, knob down: both humbuckers: Neck pickup (both coils) and Bridge pickup (both coils) in parallel.
- Bridge, knob down: full humbucker: Bridge pickup (both coils).
- Neck, knob pulled: single coil: Neck pickup (split to one coil). Source: The tone's push/pull splits both pickups.
- Both, knob pulled: both split: Neck pickup (split to one coil) and Bridge pickup (split to one coil) in parallel. Source: The tone's push/pull splits both pickups.
- Bridge, knob pulled: single coil: Bridge pickup (split to one coil). Source: The tone's push/pull splits both pickups.

- 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).

## Check before plugging in

- Tone knob down: in each toggle position the meter across the jack reads the selected humbucker, or both in parallel in the middle.
- Tone knob up: each reading drops to roughly one coil's resistance.
- With a volume at zero, its pickup's black lead reads as a short to ground.

## Source

Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3G\_2V\_1TppSPL, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan.

See also [all wiring diagrams](<https://guitarwiring.app/wiring-diagrams/index.md>).