Seymour Duncan wiring

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

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

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

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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 bladeSource: 3 Way Blade—CRL 3-Way BladeExample part
Volume 500k push/pull splitSource: Volume 500k with Split Switch500k500k Push-Pull DPDTExample part
Tone 500k500kCTS 500k Audio PotExample part
.047 capSource: .047 cap (drawn green)47nFOrange Drop .047µFExample part
Output jackSource: 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 a split switch that splits both pickups.
  • Each pickup's red and white leads are soldered together onto a middle lug of the push/pull switch: bridge on the left, neck on the right.
  • The two push/pull lugs nearest the pot are jumpered together and wired to the volume casing; the two lugs furthest from the pot stay empty.
  • Each pickup's black lead goes to a common lug on the blade; three short jumpers join four other lugs into one output that loops round to the volume's input lug.
  • The tone takes its signal from the volume's input lug, before the volume.
  • The bridge ground wire and the jack sleeve both end on the tone casing, which is wired to the volume casing.
  • The source legend marks the grey 'Solder' spots as the location for ground (earth) connections.
  • The source does not number the blade positions; the lugs are mapped by what they do (neck, both, bridge).

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 greenVolume casingTo a pot casinggreen
2Neck bareVolume casingDrawn grey beside the green.Shield or groundbare
3Bridge greenVolume casingTo a pot casinggreen
4Bridge bareVolume casingDrawn grey beside the green.Shield or groundbare
5Push/pull bottom left lugVolume casingTo a pot casingblack
6Volume right lugVolume casingLug bent onto the lower solder spot.To a pot casing
7Volume casingTone casingTo a pot casingblack
8Bridge ground wireTone casingShield or groundblack
9Tone casingJack sleeveWireblack
10.047 capTone casingTo a pot casing
11Neck blackBlade top row, first lug (common)Wireblack
12Bridge blackBlade bottom row, fourth lug (common)Wireblack
13Blade bottom row, first lugBlade bottom row, second lugJumperblack
14Blade bottom row, second lugBlade top row, third lugJumperblack
15Blade top row, third lugBlade top row, fourth lugJumperblack
16Blade top row, fourth lugVolume left lug (input)Wireblack
17Neck whitePush/pull middle right lugWirewhite
18Neck redPush/pull middle right lugShares the lug with the neck white lead.Wirered
19Bridge whitePush/pull middle left lugWirewhite
20Bridge redPush/pull middle left lugShares the lug with the bridge white lead.Wirered
21Push/pull bottom left lugPush/pull bottom right lugJumperblack
22Volume middle lugJack tipThe volume-to-tone ground wire hops over this wire; they do not connect.Wireblack
23Volume left lugTone left lugWireblack
24Tone middle lug.047 capWire

What each position does

SettingThe sourceEngine result
Neck, knob down: full humbucker—Neck pickup (both coils).
Neck + bridge, 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).
Neck + bridge, 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).

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 blade 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.