Seymour Duncan wiring

Two humbuckers, three-way toggle, push/pull split volume and two tones

Two humbuckers · Three-way toggle · One push/pull volume (splits both) · Two tones

Neck and bridge Seymour Duncan humbuckers, each with its own 500k tone and .047 µF capacitor ahead of a three-way toggle, then one 500k master volume. The volume's push/pull grounds both pickups' red–white coil links, so pulling the knob splits both humbuckers.

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Viewed from the back of the controls, as you solder them. Select a component to move, rotate or flip it. Follow wires and try the switches in simulation mode. Use Full screen for a closer look.

Parts and values

In the drawingValuePart
Neck PickupSource: Seymour Duncan Neck Pickup—Humbucker (four-conductor, Seymour Duncan colours)Generic
Bridge PickupSource: Seymour Duncan Bridge Pickup—Humbucker (four-conductor, Seymour Duncan colours)Generic
3-Way ToggleSource: 3 way toggle (unlabelled)—Switchcraft 3-Way ToggleExample part
Master Volume 500k push/pull500k500k Push-Pull DPDTExample part
Neck Tone 500k500kCTS 500k Audio PotExample part
Output Jack—Switchcraft #11Example part
Bridge Tone 500k500kCTS 500k Audio PotExample part
Bridge groundSource: Bridge ground wire—Bridge ground wireGeneric
Neck .047 capSource: .047 cap on the neck tone (drawn green)47nFOrange Drop .047µFExample part
Bridge .047 capSource: .047 cap on the bridge tone (drawn green)47nFOrange Drop .047µFExample part

“Example part” means any part with the same value and lugs will do; the source does not name a brand. “Generic” stands in for an unspecified pickup: check your own pickup's lead colours before you solder.

Specific to this wiring

  • The source says the push/pull split switch splits both pickups.
  • Each pickup's red and white leads are soldered together onto one middle lug of the switch, not taped off: bridge on the left column, neck on the right.
  • The two bottom switch lugs (nearest the pot) are jumpered together and wired to the volume casing; the top row stays empty.
  • Each pickup's black lead goes to the outer lug of its own tone pot, and that lug continues to the toggle.
  • The neck green and bare, the toggle's frame lug and the bridge ground wire end on the neck tone casing; the bridge green and bare end on the volume casing; the jack sleeve ends on the bridge tone casing.
  • The three pot casings are linked: neck tone to volume, volume to bridge tone.
  • The toggle tags are not labelled in the source, so they are mapped by what each does.

Connections

In soldering order: grounds first, then the switch, the pickups and the signal path. Choose Show to highlight a connection in the drawing.

#FromToHowDrawing
1Neck greenNeck tone casingTo a pot casinggreen
2Neck bare shieldNeck tone casingDrawn grey beside the green.Shield or groundbare
3Toggle frame lugNeck tone casingTo a pot casingblack
4Neck .047 capNeck tone casingTo a pot casing
5Bridge greenVolume casingTo a pot casinggreen
6Bridge bare shieldVolume casingDrawn grey beside the green.Shield or groundbare
7Bridge .047 capBridge tone casingTo a pot casing
8Push/pull left bottom lugVolume casingTo a pot casingblack
9Volume right lugVolume casingLug bent onto the casing.To a pot casing
10Neck tone casingVolume casingTo a pot casingblack
11Bridge ground wireNeck tone casingWireblack
12Volume casingBridge tone casingTo a pot casingblack
13Bridge tone casingJack sleeveWireblack
14Neck tone top lugToggle neck lugWireblack
15Bridge tone top lugToggle bridge lugWireblack
16Toggle middle lugVolume left lug (input)Wireblack
17Neck redPush/pull right middle lugWirered
18Neck whitePush/pull right middle lugShares the lug with the neck red.Wirewhite
19Neck blackNeck tone top lugWireblack
20Bridge redPush/pull left middle lugWirered
21Bridge whitePush/pull left middle lugShares the lug with the bridge red.Wirewhite
22Bridge blackBridge tone top lugWireblack
23Neck tone middle lugNeck .047 capWire
24Bridge tone middle lugBridge .047 capWire
25Push/pull right bottom lugPush/pull left bottom lugShort jumper along the bottom row.Wireblack
26Volume middle lugJack tipWireblack

What each position does

SettingThe sourceEngine result
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 coilThe split switch splits both pickups.Neck Pickup (split to one coil).
Both, knob pulled: both splitThe split switch splits both pickups.Neck Pickup (split to one coil) and Bridge Pickup (split to one coil) in parallel.
Bridge, knob pulled: single coilThe split switch splits both pickups.Bridge Pickup (split to one coil).

Checked with the Tinkercaster wiring engine against the switching the source describes.

  • 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).
  • The simulator's position summary names one tone control only; each tone sits on its own pickup's lead ahead of the toggle, so in the middle position both tones act on the combined signal.

Before you solder

Ticks are kept in this browser only, as a reminder. They are not a check of your joints. New to soldering? Read the soldering cheat sheet.

Check before plugging in

  • Knob down: in each toggle position the meter across the jack reads the selected humbucker, or both in parallel in the middle.
  • Knob up: each reading drops to roughly one coil's resistance.
  • With the volume at zero, tip and sleeve should read as a short in every position.

Measure across the output jack with a multimeter on its resistance range. No exact readings are given where the source does not specify the pickups.