Seymour Duncan wiring

Two humbuckers with a three-way blade, a push/pull split volume and a push/pull phase tone

Two humbuckers · Three-way blade · Push/pull volume (splits both) · Push/pull tone (phase)

Neck and bridge Seymour Duncan humbuckers on a three-way blade with one 500k push/pull volume and one 500k push/pull tone with a .047 µF capacitor. The volume's push/pull splits both pickups by grounding each red–white link. The tone's push/pull reverses the neck pickup's black and green leads.

Two humbuckers with a three-way blade, a push/pull split volume and a push/pull phase toneTwo humbuckers with a three-way blade, a push/pull split volume and a push/pull phase tone: Two humbuckers · Three-way blade · Push/pull volume (splits both) · Push/pull tone (phase). Original Tinkercaster drawing with labelled terminals.Neck PickupNeck PickupBridge PickupBridge Pickup3-Way Blade SwitchVolume 500k push/pull split · 500k500kTone 500k push/pull phase · 500k500k.047 cap · 47nF47nFOutput JackBridge groundblackgreenwhiteredbareblackgreenwhiteredbareT1T2T3T4T5T6T7T8lug1lug2lug3sw1sw2sw3sw4sw5sw6lug1lug2lug3sw1sw2sw3sw4sw5sw6abtipsleeveground

Viewed from the back of the controls, as you solder them. Open the interactive diagram to zoom, move components and try the switches.

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 Blade SwitchSource: 3 Way Blade—CRL 3-Way BladeExample part
Volume 500k push/pull splitSource: Volume 500k with Split Switch500k500k Push-Pull DPDTExample part
Tone 500k push/pull phaseSource: Tone 500k with Phase Switch500k500k Push-Pull DPDTExample part
.047 capSource: .047 cap (drawn green)47nFOrange Drop .047µFExample part
Output Jack—Switchcraft #11Example part
Bridge groundSource: Bridge ground wire—Bridge ground wireGeneric

“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 volume's push/pull as coil split and the tone's push/pull as phase.
  • Each pickup's red and white leads are soldered together onto a middle lug of the volume's push/pull: bridge on the left, neck on the right.
  • The two volume push/pull lugs nearest the pot are jumpered together and wired to the volume casing.
  • The neck black and green leads go through the tone's push/pull with an X cross-wire so pulling the tone reverses the neck; the neck bare ends on the tone casing.
  • The bridge black goes to a blade common; the phase switch's hot out goes to the other common.
  • Three short wires join four blade lugs into one output that runs to the volume's input lug.
  • The tone takes its signal from the volume's input lug; the .047 cap sits between the tone's middle lug and the tone casing.
  • Solder = location for ground (earth) connections.
  • The blade 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.

#FromToHow
1Neck greenTone push/pull middle rightWiregreen
2Neck bareTone casingShield or groundbare
3Tone push/pull bottom leftTone casingTo a pot casingblack
4Bridge greenVolume casingTo a pot casinggreen
5Bridge bareVolume casingShield or groundbare
6Volume push/pull bottom leftVolume casingTo a pot casingblack
7Volume right lugVolume casingLug bent onto the casing.To a pot casing
8.047 capTone casingTo a pot casingblack
9Volume casingTone casingTo a pot casingblack
10Bridge ground wireTone casingWireblack
11Tone casingJack sleeveTo a pot casingblack
12Tone push/pull top leftBlade neck commonWireblack
13Bridge blackBlade bridge commonWireblack
14Blade lugBlade lugShort wire joining output lugs.Wireblack
15Blade lugBlade lugShort wire joining output lugs.Wireblack
16Blade lugBlade lugShort wire joining output lugs.Wireblack
17Blade outputVolume left lug (input)Wireblack
18Neck whiteVolume push/pull middle rightWirewhite
19Neck redVolume push/pull middle rightShares the lug with the neck white.Wirered
20Neck blackTone push/pull middle leftWireblack
21Bridge whiteVolume push/pull middle leftWirewhite
22Bridge redVolume push/pull middle leftShares the lug with the bridge white.Wirered
23Tone push/pull top leftTone push/pull bottom rightOne leg of the X.Wireblack
24Tone push/pull top rightTone push/pull bottom leftThe other leg of the X.Wireblack
25Volume push/pull bottom leftVolume push/pull bottom rightWireblack
26Volume middle lugJack tipWireblack
27Volume left lugTone left lugWireblack
28Tone middle lug.047 capWireblack

What each position does

SettingThe sourceEngine result
Neck, both knobs down—Neck Pickup (both coils).
Both, both knobs down: in phase—Neck Pickup (both coils) and Bridge Pickup (both coils) in parallel.
Bridge, both knobs down—Bridge Pickup (both coils).
Neck, volume pulled (split), tone downPulling the volume splits both pickups.Neck Pickup (split to one coil).
Both, volume pulled (both split), tone downPulling the volume splits both pickups.Neck Pickup (split to one coil) and Bridge Pickup (split to one coil) in parallel.
Bridge, volume pulled (split), tone downPulling the volume splits both pickups.Bridge Pickup (split to one coil).
Neck, volume down, tone pulled (neck reversed)Neck alone sounds the same when reversed.Neck Pickup (both coils).
Both, volume down, tone pulled: out of phaseNeck reversed against the bridge.Neck Pickup (both coils) and Bridge Pickup (both coils) in parallel.
Bridge, volume down, tone pulledThe bridge does not pass through the phase switch.Bridge Pickup (both coils).
Neck, volume and tone pulledNeck split; reversed alone sounds the same.Neck Pickup (split to one coil).
Both, volume and tone pulled: split and out of phaseBoth split; neck reversed.Neck Pickup (split to one coil) and Bridge Pickup (split to one coil) in parallel.
Bridge, volume and tone pulledBridge split; phase switch does not affect the bridge.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.

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

  • In each blade position the jack should read the selected pickup, or both in parallel in the middle.
  • Volume pulled: each red–white link should read continuity to ground.
  • Tone pulled in the middle position: the two pickups should be out of phase.

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.