Seymour Duncan wiring

Two humbuckers with a three-way blade, two volumes and two tones

Two humbuckers · Three-way blade · Two volumes · Two tones

Neck and bridge Seymour Duncan humbuckers, each with its own 500k volume and 500k tone with a .047 µF capacitor, selected by a three-way blade. Each volume's middle lug feeds a switch common.

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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 Blade SwitchSource: 3 Way Blade—CRL 3-Way BladeExample part
Bridge volume 500kSource: Volume 500k (left, bridge)500kCTS 500k Audio PotExample part
Bridge tone 500kSource: Tone 500k (left, bridge)500kCTS 500k Audio PotExample part
.047 cap (bridge)Source: .047 cap (drawn green)47nFOrange Drop .047µFExample part
Neck volume 500kSource: Volume 500k (right, neck)500kCTS 500k Audio PotExample part
Neck tone 500kSource: Tone 500k (right, neck)500kCTS 500k Audio PotExample part
.047 cap (neck)Source: .047 cap (drawn green)47nFOrange Drop .047µFExample part
Output Jack—Switchcraft #11Example part
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

  • On each pickup, solder the red and white leads together and tape them off.
  • Each pickup has its own volume and tone; each volume's middle lug goes to a common lug on the switch, and three short jumpers join four other lugs into one output to the jack tip.
  • Each tone takes its signal from its volume's input lug, with the .047 cap on the tone's middle lug.
  • The source does not number the switch 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 greenNeck volume casingNeck green runs down to the neck volume's upper solder spot.To a pot casinggreen
2Neck bareNeck volume casingNeck bare (drawn grey) runs with the green to the same spot.Shield or groundbare
3Bridge greenBridge volume casingBridge green runs to the bridge volume's upper solder spot.To a pot casinggreen
4Bridge bareBridge volume casingBridge bare (drawn grey) runs with the green to the same spot.Shield or groundbare
5Bridge volume right lugBridge volume casingBridge volume right lug bent to its lower solder spot.To a pot casing
6Neck volume right lugNeck volume casingNeck volume right lug bent to its solder spot.To a pot casing
7Bridge .047 capBridge tone casingThe cap's other leg goes to the bridge tone's solder spot.To a pot casingblack
8Bridge volume casingBridge tone casingWire from the bridge volume's lower solder spot down to the bridge tone's solder spot.To a pot casingblack
9Neck .047 capNeck tone casingThe cap's other leg goes to the neck tone's solder spot.To a pot casingblack
10Neck volume casingNeck tone casingWire from the neck volume's solder spot down the right to the neck tone's solder spot.To a pot casingblack
11Bridge tone casingNeck tone casingWire from the bridge tone's solder spot across the bottom to the neck tone's solder spot.To a pot casingblack
12Bridge tone casingJack sleeveWire from the bridge tone's solder spot down to the jack sleeve.To a pot casingblack
13Bridge ground wireBridge tone casing'Bridge Ground Wire' ends on the bridge tone's solder spot.Shield or groundblack
14Bridge volume middle lugSwitch bottom-left lug (common)Bridge volume middle lug runs up to the switch's bottom-left lug (a common).Wireblack
15Neck volume middle lugSwitch top-right lug (common)Neck volume middle lug runs up to the switch's top-right lug (the other common).Wireblack
16Switch top-left lugSwitch second left lugShort jumper between the switch's top two left lugs.Jumperblack
17Switch second left lugSwitch third right lugJumper from the second left lug down to the third right lug.Jumperblack
18Switch third right lugSwitch bottom-right lugJumper between the switch's bottom two right lugs.Jumperblack
19Switch bottom-right lugJack tipLong wire from the bottom-right switch lug down to the jack tip.Wireblack
20Neck redNeck whiteNeck red and white end in the taped joint at the right.Joined and insulatedred
21Neck blackNeck volume left lugNeck black runs down the right and loops to the neck volume's left lug.Wireblack
22Bridge redBridge whiteBridge red and white end in the taped joint.Joined and insulatedred
23Bridge blackBridge volume left lugBridge black curves to the bridge volume's left lug.Wireblack
24Bridge volume left lugBridge tone left lugBridge volume left lug straight down to the bridge tone's left lug (tone drawn lugs up).Wireblack
25Bridge tone middle lugBridge .047 capBridge tone middle lug takes one leg of its .047 cap.Wireblack
26Neck volume left lugNeck tone left lugNeck volume left lug straight down to the neck tone's left lug (tone drawn lugs up).Wireblack
27Neck tone middle lugNeck .047 capNeck tone middle lug takes one leg of its .047 cap.Wireblack

What each position does

SettingThe sourceEngine result
Neck—Neck pickup (both coils).
Neck + bridge—Neck pickup (both coils) and Bridge pickup (both coils) in parallel.
Bridge—Bridge pickup (both coils).

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 switch position, the meter across the jack should read the selected pickup, or both in parallel in the middle.
  • Each taped red–white joint should read open to ground.

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.