# Two P-Rails, three-way toggle, two push/pull volumes (split and coil select), two tones Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-p-rails-toggle-two-push-pull-volumes-coil-select-two-tones Two P-Rails · Three-way toggle · 500k push/pull bridge volume (humbucker / single coil) · 500k push/pull neck volume (P-90 / Rail) · Two 500k tones Neck and bridge Seymour Duncan P-Rails, each with its own 500k push/pull volume and 500k tone (.047 caps), on a three-way toggle. The bridge push/pull switches both pickups between humbucker and single coil; with it up, the neck push/pull picks the P-90 coils (up) or the Rail coils (down). CORRECTED: the sheet draws each pickup's black lead to the other pickup's volume, which does not work; this diagram sends each black to its own volume, as Seymour Duncan's P-Rails explanation sheet says. Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-p-rails-toggle-two-push-pull-volumes-coil-select-two-tones.svg (back of controls) ## Parts and values - Neck pickup (P-Rails): Neck pickup (Seymour Duncan P-Rails); generic (P-Rails stand-in (four-conductor)) - Bridge pickup (P-Rails): Bridge pickup (Seymour Duncan P-Rails); generic (P-Rails stand-in (four-conductor)) - 3-Way toggle (pickup selector): 3-Way toggle (pickup selector); compatible example (Switchcraft 3-Way Toggle) - Bridge volume 500k push/pull: Bridge volume 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - Neck volume 500k push/pull: Neck volume 500k push/pull; 500k; compatible example (500k Push-Pull DPDT) - 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 on the bridge tone (drawn green); 47nF; compatible example (Orange Drop .047µF) - Neck .047 cap: .047 cap on the 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 - CORRECTION TO THE PRINTED SHEET. The sheet draws the black lead leaving the neck pickup's cable into the 'Bridge volume' left lug, and the black lead leaving the bridge pickup's cable into the 'Neck volume' left lug. As drawn, pulling both push/pulls joins each pickup's red/white link to the OTHER pickup's hot, cross-coupling the two pickups (in toggle positions 1 and 3 both pickups play, out of phase), and in the other settings toggle position 1 plays the bridge pickup and position 3 the neck pickup. That contradicts the sheet's own legend. This diagram makes the smallest change that gives the legend's behaviour: the neck black goes to the neck volume's left lug and the bridge black to the bridge volume's left lug. Evidence: Seymour Duncan's 'P-Rails Wiring Explanation' sheet (WD\_Prail\_Explanation) marks each black as 'Neck pickup hot-output' / 'Bridge pickup hot-output' and says 'If your guitar has individual volume controls for each pickup, these connect to those volume controls.' Seymour Duncan's 2008 original and 2017 copy of this sheet draw the same crossed blacks; no corrected version has been published. Every other wire is transcribed as drawn. - Source title: '2 P-RAILS \| 2 VOLUMES push/pull coil split \| 2 TONES \| 3 WAY TOGGLE'. - Push/pull switching explanation (printed): 'Bridge push/pull allows you to switch from humbucking to single-coil mode. Neck push/pull allows you to select P-90 coils or Rails coils (this switch functions only when the volume push/pull is UP).' Table: Bridge push/pull UP = 'Single-coil, tone push/pull is activated'; DOWN = 'Humbucker, tone push/pull does nothing'. Neck push/pull UP = 'P-90 coil'; DOWN = 'Rail coil'. - Printed callouts: 'Red & white wires from both pickups get connected here' (the bridge volume push/pull's middle lugs) and 'Green & bare wires from both pickups get connected here' (the bridge volume Solder spot). - Both pickups' red/white links go to the bridge push/pull's middle lugs (bridge left, neck right). Its top lugs run to the neck push/pull's middle lugs, crossed over: the bridge link reaches the neck push/pull's middle-right lug and the neck link its middle-left lug. The bottom row of the bridge push/pull is drawn empty. - The neck push/pull's top-left lug is wired to the neck volume's left lug and its top-right lug to the bridge volume's left lug. Its bottom two lugs are jumpered and wired to the neck volume Solder spot. - Which push/pull row is UP: the legend needs the bridge push/pull's wired (top) row for 'UP = Single-coil', since its bottom row is empty. The same row reading is used for the neck push/pull. With the corrected blacks, the neck push/pull UP joins each link to its own pickup's hot and DOWN grounds both links. - Which P-Rails coil is which follows Seymour Duncan's P-Rails explanation sheet: link to the black (hot) leaves the P-90 coil; link to ground leaves the Rail coil. - Each volume's left lug also feeds its own tone's left lug (tones drawn lugs up); each tone's middle lug feeds a .047 cap to its Solder spot. Toggle: bridge volume middle lug to one throw, neck volume middle lug to the other, middle lug to the jack tip, frame lug to the neck volume Solder spot. - Ground: bridge volume Solder spot to bridge tone Solder spot to neck tone Solder spot to neck volume Solder spot; the bridge tone Solder spot also takes the 'Ground wire from bridge' and the jack sleeve. Each volume's right lug is drawn bent onto its casing. - The toggle and push/pull lugs are not labelled on the sheet; they are mapped by what each does. - Tip (hot output). Sleeve (ground): the inner, circular portion of the jack. ## Connections 1. Neck green → Bridge volume casing (wire, green): To the bridge volume Solder spot. 2. Neck bare → Bridge volume casing (shield, bare): To the bridge volume Solder spot. 3. Bridge green → Bridge volume casing (wire, green): To the bridge volume Solder spot. 4. Bridge bare → Bridge volume casing (shield, bare): To the bridge volume Solder spot. 5. Neck push/pull bottom-left lug → Neck volume casing (case, black): To the neck volume Solder spot. 6. Bridge volume right lug → Bridge volume casing (case): Lug bent onto the casing. 7. Neck volume right lug → Neck volume casing (case): Lug bent onto the casing. 8. Bridge .047 cap → Bridge tone casing (case) 9. Neck .047 cap → Neck tone casing (case) 10. Toggle frame lug → Neck volume casing (wire, black) 11. Bridge volume casing → Bridge tone casing (case, black) 12. Bridge tone casing → Neck tone casing (case, black) 13. Neck tone casing → Neck volume casing (case, black) 14. Ground wire from bridge → Bridge tone casing (wire, black) 15. Bridge tone casing → Jack sleeve (wire, black) 16. Bridge volume middle lug → Toggle bridge lug (wire, black) 17. Neck volume middle lug → Toggle neck lug (wire, black) 18. Toggle middle lug → Jack tip (wire, black) 19. Neck red → Bridge push/pull middle-right lug (wire, red) 20. Neck white → Bridge push/pull middle-right lug (wire, white): Shares the lug with the neck red. 21. Neck black → Neck volume left lug (wire, black): CORRECTED: the sheet draws this lead into the bridge volume's left lug. Moved to the neck volume per Seymour Duncan's WD\_Prail\_Explanation (each pickup's hot to its own volume control). 22. Bridge red → Bridge push/pull middle-left lug (wire, red) 23. Bridge white → Bridge push/pull middle-left lug (wire, white): Shares the lug with the bridge red. 24. Bridge black → Bridge volume left lug (wire, black): CORRECTED: the sheet draws this lead into the neck volume's left lug. Moved to the bridge volume per Seymour Duncan's WD\_Prail\_Explanation (each pickup's hot to its own volume control). 25. Bridge push/pull top-left lug → Neck push/pull middle-right lug (wire, black) 26. Bridge push/pull top-right lug → Neck push/pull middle-left lug (wire, black) 27. Bridge volume left lug → Neck push/pull top-right lug (wire, black) 28. Neck volume left lug → Neck push/pull top-left lug (wire, black) 29. Neck push/pull bottom-left lug → Neck push/pull bottom-right lug (bridge, black): Jumper across the bottom row. 30. Bridge volume left lug → Bridge tone left lug (wire, black) 31. Neck volume left lug → Neck tone left lug (wire, black) 32. Bridge tone middle lug → Bridge .047 cap (wire) 33. Neck tone middle lug → Neck .047 cap (wire) ## What each position does - Neck: humbucker; bridge push/pull down, neck push/pull down: Neck pickup (P-Rails) (both coils). Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Both: both, humbuckers in parallel; bridge push/pull down, neck push/pull down: Neck pickup (P-Rails) (both coils) and Bridge pickup (P-Rails) (both coils) in parallel. Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Bridge: humbucker; bridge push/pull down, neck push/pull down: Bridge pickup (P-Rails) (both coils). Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Neck: humbucker; bridge push/pull down, neck push/pull up: Neck pickup (P-Rails) (both coils). Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Both: both, humbuckers in parallel; bridge push/pull down, neck push/pull up: Neck pickup (P-Rails) (both coils) and Bridge pickup (P-Rails) (both coils) in parallel. Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Bridge: humbucker; bridge push/pull down, neck push/pull up: Bridge pickup (P-Rails) (both coils). Source: Bridge push/pull DOWN = Humbucker; the neck push/pull does nothing (it 'functions only when the volume push/pull is UP'). Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Neck: Rail coil; bridge push/pull up, neck push/pull down: Neck pickup (P-Rails) (split to one coil). Source: Bridge push/pull UP = Single-coil; neck push/pull DOWN = Rail coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Both: both, Rail coils in parallel; bridge push/pull up, neck push/pull down: Neck pickup (P-Rails) (split to one coil) and Bridge pickup (P-Rails) (split to one coil) in parallel. Source: Bridge push/pull UP = Single-coil; neck push/pull DOWN = Rail coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Bridge: Rail coil; bridge push/pull up, neck push/pull down: Bridge pickup (P-Rails) (split to one coil). Source: Bridge push/pull UP = Single-coil; neck push/pull DOWN = Rail coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Neck: P-90 coil; bridge push/pull up, neck push/pull up: Neck pickup (P-Rails) (split to one coil). Source: Bridge push/pull UP = Single-coil; neck push/pull UP = P-90 coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Both: both, P-90 coils in parallel; bridge push/pull up, neck push/pull up: Neck pickup (P-Rails) (split to one coil) and Bridge pickup (P-Rails) (split to one coil) in parallel. Source: Bridge push/pull UP = Single-coil; neck push/pull UP = P-90 coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - Bridge: P-90 coil; bridge push/pull up, neck push/pull up: Bridge pickup (P-Rails) (split to one coil). Source: Bridge push/pull UP = Single-coil; neck push/pull UP = P-90 coil. Relies on this diagram's correction: each pickup's black to its own volume (the sheet draws them crossed). - The circuit is corrected from the printed sheet: each pickup's black lead goes to its own volume instead of the other pickup's volume as drawn. The analysed results describe the corrected circuit, not the printed one. - The push/pull rows are read with the top row as UP to match the printed legend; a push/pull that switches the other way would swap its UP and DOWN settings. - The engine reports either P-Rails single-coil mode as a split; which coil is the P-90 and which the Rail follows Seymour Duncan's P-Rails explanation sheet and the stand-in's lead roles, not a measurement. - Pickup resistance is not specified, so no numeric meter readings are given. ## Check before plugging in - Before fitting, confirm each pickup's black lead lands on its OWN volume's left lug (the printed sheet has them crossed). - Bridge push/pull down: the toggle gives neck humbucker, both, bridge humbucker; the neck push/pull changes nothing. - Bridge push/pull up: each pickup reads one coil; flipping the neck push/pull switches both pickups between the P-90 coils (up) and the Rail coils (down). ## Source Tinkercaster's own drawing of the Seymour Duncan diagram 2PRail\_3G\_2VppSPL\_2T, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan. See also [all wiring diagrams]().