Seymour Duncan wiring

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

Two humbuckers · Three-way toggle · Two push/pull volumes (coil split) · One master tone

Neck and bridge Seymour Duncan humbuckers, each with its own 500k push/pull volume, on a three-way toggle with one 500k master tone and a .047 µF capacitor. Pulling a volume knob grounds that pickup's red–white coil link, so each humbucker can be split to a single coil on its own.

Loading interactive diagram…

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
Bridge volume 500k push/pullSource: Bridge Volume 500k push/pull500k500k Push-Pull DPDTExample part
Neck volume 500k push/pullSource: Neck Volume 500k push/pull500k500k Push-Pull DPDTExample part
Output jackSource: Output Jack—Switchcraft #11Example part
Bridge groundSource: Bridge Ground Wire—Bridge ground wireGeneric
Master tone 500kSource: Master Tone 500k500kCTS 500k Audio PotExample part
.047 capSource: .047 cap (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 titles the volumes as 500k push/pull coil split controls; each one splits only its own pickup.
  • On each pickup the red and white leads are soldered together onto the middle lug of the push/pull's top row, not taped off.
  • Each pickup's green and bare leads share the top-row lug nearest the pot, and a short wire joins that lug to the volume casing. The bottom row of each switch stays empty.
  • The toggle's middle lug feeds the master tone's left lug, and that same lug carries the wire to the jack tip.
  • The toggle frame lug goes to the neck volume casing; the neck and bridge volume casings are linked, and the bridge ground wire, jack sleeve and tone casing all end on the bridge volume casing.
  • The source legend marks the grey 'Solder' spots as the location for ground (earth) connections.
  • 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 push/pull lug nearest the potWiregreen
2Neck bareNeck push/pull lug nearest the potDrawn grey beside the green.Shield or groundbare
3Neck push/pull lug nearest the potNeck volume casingTo a pot casingblack
4Neck volume top lugNeck volume casingLug bent onto the casing.To a pot casing
5Bridge greenBridge push/pull lug nearest the potWiregreen
6Bridge bareBridge push/pull lug nearest the potDrawn grey beside the green.Shield or groundbare
7Bridge push/pull lug nearest the potBridge volume casingTo a pot casingblack
8Bridge volume top lugBridge volume casingLug bent onto the casing.To a pot casing
9Toggle frame lugNeck volume casingTo a pot casingblack
10Neck volume casingBridge volume casingTo a pot casingblack
11Bridge ground wireBridge volume casingShield or groundblack
12Bridge volume casingJack sleeveWireblack
13.047 capMaster tone casingTo a pot casing
14Bridge volume casingMaster tone casingTo a pot casingblack
15Neck volume middle lugToggle neck lugWireblack
16Bridge volume middle lugToggle bridge lugWireblack
17Toggle middle lugMaster tone left lugWireblack
18Neck whiteNeck push/pull top middle lugWirewhite
19Neck redNeck push/pull top middle lugShares the lug with the neck white lead.Wirered
20Neck blackNeck volume bottom lug (input)Wireblack
21Bridge whiteBridge push/pull top middle lugWirewhite
22Bridge redBridge push/pull top middle lugShares the lug with the bridge white lead.Wirered
23Bridge blackBridge volume bottom lug (input)Wireblack
24Master tone left lugJack tipWireblack
25Master tone middle lug.047 capWire

What each position does

SettingThe sourceEngine result
Neck, neck knob down, bridge knob down—Neck pickup (both coils).
Neck + bridge, neck knob down, bridge knob down—Neck pickup (both coils) and Bridge pickup (both coils) in parallel.
Bridge, neck knob down, bridge knob down—Bridge pickup (both coils).
Neck, neck knob pulled, bridge knob downEach volume's push/pull coil split splits its own pickup.Neck pickup (split to one coil).
Neck + bridge, neck knob pulled, bridge knob downEach volume's push/pull coil split splits its own pickup.Neck pickup (split to one coil) and Bridge pickup (both coils) in parallel.
Bridge, neck knob pulled, bridge knob downEach volume's push/pull coil split splits its own pickup.Bridge pickup (both coils).
Neck, neck knob down, bridge knob pulledEach volume's push/pull coil split splits its own pickup.Neck pickup (both coils).
Neck + bridge, neck knob down, bridge knob pulledEach volume's push/pull coil split splits its own pickup.Neck pickup (both coils) and Bridge pickup (split to one coil) in parallel.
Bridge, neck knob down, bridge knob pulledEach volume's push/pull coil split splits its own pickup.Bridge pickup (split to one coil).
Neck, neck knob pulled, bridge knob pulledEach volume's push/pull coil split splits its own pickup.Neck pickup (split to one coil).
Neck + bridge, neck knob pulled, bridge knob pulledEach volume's push/pull coil split splits its own pickup.Neck pickup (split to one coil) and Bridge pickup (split to one coil) in parallel.
Bridge, neck knob pulled, bridge knob pulledEach volume's push/pull coil split splits its own pickup.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 lug to the lug nearest the pot).

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

  • Both knobs down: in each toggle position the meter across the jack reads the selected humbucker, or both in parallel in the middle.
  • Pull one knob: only that pickup's reading drops to roughly one coil's resistance.
  • In the neck or bridge position, turning the selected pickup's volume to zero should read tip to sleeve as a short.

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.