# Two P-Rails, three-way toggle, two ON-OFF-ON mini-toggles, two volumes and two tones

Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-p-rails-toggle-two-on-off-on-minis-two-volumes-two-tones

Two P-Rails · Three-way toggle · Two ON-OFF-ON mini-toggles (Rail / humbucker / P-90) · Two volumes · Two tones

Neck and bridge Seymour Duncan P-Rails, each with its own ON-OFF-ON mini-toggle, 500k volume and 500k tone with a .047 cap, on a three-way toggle. Each mini-toggle picks the Rail coil (up), the full series humbucker (middle) or the P-90 coil (down) for its own pickup.

Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-p-rails-toggle-two-on-off-on-minis-two-volumes-two-tones.svg (back of controls)

## Parts and values

- Neck P-Rails: Neck P-Rails (upper pickup); generic (P-Rails stand-in (four-conductor))
- Bridge P-Rails: Bridge P-Rails (lower pickup); generic (P-Rails stand-in (four-conductor))
- 3-way pickup selector: 3-way pickup selector; compatible example (Switchcraft 3-Way Toggle)
- Neck ON-OFF-ON mini-toggle: ON-OFF-ON mini-toggle (neck); compatible example (DPDT Mini-Toggle (on-on-on))
- Bridge ON-OFF-ON mini-toggle: ON-OFF-ON mini-toggle (bridge); compatible example (DPDT Mini-Toggle (on-on-on))
- 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)
- Bridge tone 500k: Bridge tone 500k; 500k; compatible example (CTS 500k Audio Pot)
- Neck tone 500k: Neck tone 500k; 500k; compatible example (CTS 500k Audio Pot)
- Bridge .047 cap: .047 cap (bridge tone, drawn green); 47nF; compatible example (Orange Drop .047µF)
- Neck .047 cap: .047 cap (neck tone, drawn green); 47nF; compatible example (Orange Drop .047µF)
- Output jack: Output Jack; compatible example (Switchcraft \#11)
- Ground wire from bridge: ground wire from bridge; generic (Bridge ground wire)

## Specific to this wiring

- ON-OFF-ON (dpdt) mini-toggle switch settings: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck and bridge P-Rails are wound so that each set of matching single coils will be hum-canceling. This means that, when in split-mode, using both P-90 coils together OR using both Rail coils together will yield hum-canceling.
- On each mini-toggle only the left column is used: black on the top lug, red & white on the middle lug, green & bare on the bottom lug. The right-hand lugs are drawn empty.
- The neck mini-toggle's top lug feeds the neck volume; its bottom (ground) lug goes to the bridge volume casing. The bridge mini-toggle's top lug feeds the bridge volume; its bottom lug goes to the bridge tone casing.
- Each volume's input lug is also wired to its own tone's left lug; each tone's middle lug carries a .047 cap to the tone casing.
- The selector's middle lug goes straight to the jack Tip; its frame lug goes to the neck volume casing.
- 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 selector and mini-toggle tags are not labelled in the source, so they are mapped by what each does.

## Connections

1. Neck P-Rails green → Neck mini-toggle bottom lug (wire, green): Labelled 'green & bare' with the bare.
2. Neck P-Rails bare → Neck mini-toggle bottom lug (wire, bare)
3. Neck mini-toggle bottom lug → Bridge volume casing (wire, black)
4. Bridge P-Rails green → Bridge mini-toggle bottom lug (wire, green)
5. Bridge P-Rails bare → Bridge mini-toggle bottom lug (wire, bare)
6. Bridge mini-toggle bottom lug → Bridge tone casing (lower Solder) (wire, black)
7. Bridge volume right lug → Bridge volume casing (wire): Lug bent onto the casing.
8. Bridge volume casing → Neck volume casing (wire, black): Humps over the vertical wires.
9. Bridge volume casing → Bridge tone casing (upper Solder) (wire, black)
10. Neck volume right lug → Neck volume casing (wire): Lug bent onto the casing.
11. Selector frame lug → Neck volume casing (wire, black)
12. Bridge .047 cap → Bridge tone casing (upper Solder) (wire)
13. Neck .047 cap → Neck tone casing (wire)
14. Ground wire from bridge → Bridge tone casing (lower Solder) (wire, black)
15. Bridge tone casing (lower Solder) → Jack sleeve (wire, black)
16. Bridge tone casing (lower Solder) → Neck tone casing (wire, black)
17. Neck P-Rails black → Neck mini-toggle top lug (wire, black)
18. Neck P-Rails red → Neck mini-toggle middle lug (wire, red): Labelled 'red & white' with the white.
19. Neck P-Rails white → Neck mini-toggle middle lug (wire, white)
20. Neck mini-toggle top lug → Neck volume left lug (input) (wire, black)
21. Bridge P-Rails black → Bridge mini-toggle top lug (wire, black)
22. Bridge P-Rails red → Bridge mini-toggle middle lug (wire, red)
23. Bridge P-Rails white → Bridge mini-toggle middle lug (wire, white)
24. Bridge mini-toggle top lug → Bridge volume left lug (input) (wire, black)
25. Bridge volume middle lug → Selector left lug (wire, black): The bridge volume-to-tone ground wire humps over it.
26. Neck volume middle lug → Selector right lug (wire, black)
27. Selector middle lug → Jack tip (wire, black): Humps over the selector right-lug wire.
28. Bridge volume left lug → Bridge tone left lug (wire, black)
29. Neck volume left lug → Neck tone left lug (wire, black)
30. Bridge tone middle lug → Bridge .047 cap (wire)
31. Neck tone middle lug → Neck .047 cap (wire)

## What each position does

- Neck, neck mini middle (full humbucker), bridge mini middle (full humbucker): Neck P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini middle (full humbucker), bridge mini middle (full humbucker): Neck P-Rails (both coils) and Bridge P-Rails (both coils) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini middle (full humbucker), bridge mini middle (full humbucker): Bridge P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini middle (full humbucker), bridge mini down (P-90): Neck P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini middle (full humbucker), bridge mini down (P-90): Neck P-Rails (both coils) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini middle (full humbucker), bridge mini down (P-90): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini middle (full humbucker), bridge mini up (Rail): Neck P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini middle (full humbucker), bridge mini up (Rail): Neck P-Rails (both coils) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini middle (full humbucker), bridge mini up (Rail): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini down (P-90), bridge mini middle (full humbucker): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini down (P-90), bridge mini middle (full humbucker): Neck P-Rails (split to one coil) and Bridge P-Rails (both coils) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini down (P-90), bridge mini middle (full humbucker): Bridge P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini down (P-90), bridge mini down (P-90): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini down (P-90), bridge mini down (P-90): Neck P-Rails (split to one coil) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini down (P-90), bridge mini down (P-90): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini down (P-90), bridge mini up (Rail): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini down (P-90), bridge mini up (Rail): Neck P-Rails (split to one coil) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini down (P-90), bridge mini up (Rail): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini up (Rail), bridge mini middle (full humbucker): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini up (Rail), bridge mini middle (full humbucker): Neck P-Rails (split to one coil) and Bridge P-Rails (both coils) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini up (Rail), bridge mini middle (full humbucker): Bridge P-Rails (both coils). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini up (Rail), bridge mini down (P-90): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini up (Rail), bridge mini down (P-90): Neck P-Rails (split to one coil) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini up (Rail), bridge mini down (P-90): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Neck, neck mini up (Rail), bridge mini up (Rail): Neck P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Both, neck mini up (Rail), bridge mini up (Rail): Neck P-Rails (split to one coil) and Bridge P-Rails (split to one coil) in parallel. Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.
- Bridge, neck mini up (Rail), bridge mini up (Rail): Bridge P-Rails (split to one coil). Source: Mini-toggle legend: UP = Rail (single coil strat sound); MIDDLE = full humbucker sound (series); DOWN = P-90 sound.

- The mini-toggles are modelled with switchPosition on pole B of the catalog on-on-on mini: throw 1 = down (P-90), throw 2 = centre (off, full humbucker), throw 3 = up (Rail). Which lever direction reaches which throw follows the source legend, not a lug label.
- The engine reports either single-coil mode as a split; which coil is the Rail and which the P-90 follows the source legend and the stand-in's lead roles, not a measurement.
- Hum cancelling and phase describe the generic P-Rails stand-in, not measured Seymour Duncan P-Rails.
- Pickup resistance is not specified, so no numeric meter readings are given.

## Check before plugging in

- Both mini-toggles in the middle: in each selector position the meter across the jack reads the selected P-Rails as a full humbucker, or both in parallel in the middle.
- Flip one mini-toggle up or down: only that pickup's reading drops to roughly one coil's resistance.
- With a mini-toggle down, its black lead and red/white link should read as one connection; with it up, the red/white link should read as ground.

## Source

Tinkercaster's own drawing of the Seymour Duncan diagram 2PRail\_3G\_2mt\_2V\_2T, 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>).