Seymour Duncan wiring

Two humbuckers, five-way blade with coil split, one volume, one tone

Two humbuckers · Five-way blade (with coil split) · 500k volume · 500k tone

Neck and bridge Seymour Duncan humbuckers on a standard two-pole 5-way blade, one 500k volume and one 500k tone with a .047 cap. As drawn: bridge, both humbuckers, neck, bridge split + neck split, bridge split. The printed legend calls position 4 'Bridge Humbucker plus Neck Split', which the drawing does not do.

Two humbuckers, five-way blade with coil split, one volume, one toneTwo humbuckers, five-way blade with coil split, one volume, one tone: Two humbuckers · Five-way blade (with coil split) · 500k volume · 500k tone. Original Tinkercaster drawing with labelled terminals.Neck PickupNeck PickupBridge PickupBridge Pickup5 Way BladeVolume 500k · 500k500kTone 500K · 500k500k.047 cap · 47nF47nFOutput JackBridge GroundblackgreenwhiteredbareblackgreenwhiteredbareT1T2T3T4T5T6T7T8lug1lug2lug3lug1lug2lug3abtipsleeveground

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
5 Way Blade—Oak Grigsby 5-WayExample part
Volume 500k500kCTS 500k Audio PotExample part
Tone 500K500kCTS 500k Audio PotExample part
.047 capSource: .047 cap (drawn green)47nFOrange Drop .047µFExample part
Output Jack—Switchcraft #11Example part
Bridge Ground—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

  • Printed legend: 'Position 1: Bridge Humbucker. Position 2: Neck Humbucker plus Bridge Humbucker. Position 3: Neck Humbucker. Position 4: Bridge Humbucker plus Neck Split. Position 5: Bridge Split.'
  • LEGEND DISAGREES WITH THE DRAWING IN POSITION 4. This diagram follows the drawing, which is a working circuit: position 4 gives the bridge humbucker SPLIT plus the neck humbucker split, in parallel, not the full bridge humbucker the legend prints. For the legend's position 4 the bridge black would have to be live in positions 1, 2 and 4, but it is drawn on the blade lug that is live only in positions 1-2. Seymour Duncan's 2015-2021 versions of this sheet show the same wiring with no legend; a Seymour Duncan forum post (GuitarDoc, 2019) describes the drawn wiring as '4. Bridge (screw coil) + Neck (slug coil)', which agrees with this reading. Positions 1, 2, 3 and 5 match the legend.
  • Sheet text: 'This mod uses a standard 5-way lever switch, intended to show a versatile alternative with 2 humbucker pickups. For more complex switching, a megaswitch or 4 position switch is needed.'
  • The blade lugs are not numbered on the sheet. They are read as a standard two-pole 5-way: the upper (left) row's common is its bottom lug (T4), then T2, T1 and T3 going up; the lower (right) row's common is its top lug (T8), diagonally opposite, then T7, T5 and T6 going down. Pole A: T3 live in positions 1-2, T1 in 2-4, T2 in 4-5; pole B: T7 in 1-2, T5 in 2-4, T6 in 4-5. Position 1 is the bridge end.
  • The lower row's top lug (T8) and second lug (T7) are drawn empty. T8 is a floating common: in positions 4-5 it joins T5 (grounded) to T6 (the neck red and white), which grounds the neck series link and leaves the neck black coil.
  • The bridge red and white (T2) reach the output in positions 4 and 5 while the bridge black is disconnected, so the bridge's red-to-green coil is what plays: the bridge split takes its output from the series link.
  • The tone's left lug is wired to the volume's left lug (the blade output); its middle lug feeds the .047 cap to its Solder spot; its right lug is drawn unused.
  • Both pickups' green and bare wires and the blade's grounding lug go to the volume Solder spot. The volume Solder spot is wired to the tone Solder spot, which takes the jack sleeve and the 'Bridge Ground' wire.
  • The volume's right lug is drawn bent back onto its casing under a second Solder spot.
  • Source legend: the grey 'Solder' spot = location for ground (earth) connections.
  • Tip (hot output). Sleeve (ground): the inner, circular portion of the jack.

Connections

In soldering order: grounds first, then the switch, the pickups and the signal path.

#FromToHow
1Neck greenVolume casingTo the volume Solder spot.Wiregreen
2Neck bareVolume casingTo the volume Solder spot.Shield or groundbare
3Bridge greenVolume casingTo the volume Solder spot.Wiregreen
4Bridge bareVolume casingTo the volume Solder spot.Shield or groundbare
5Blade lower row, third lug (T5)Volume casingRuns right (hopping the neck red), down the right side and back left, hopping the blade common's wire, to the volume Solder spot.Wireblack
6Volume right lugVolume casingDrawn bent back under the second Solder spot.To a pot casing
7Volume casingTone casingSolder spot to Solder spot.To a pot casingblack
8Tone .047 capTone casingTo a pot casing
9Tone casingJack sleeveWireblack
10Bridge Ground wireTone casingWireblack
11Neck blackBlade upper row, second lug (T1)Wireblack
12Neck whiteBlade lower row, bottom lug (T6)Runs up and over the top of the page with the neck red.Wirewhite
13Neck redBlade lower row, bottom lug (T6)Shares the lug with the neck white.Wirered
14Bridge blackBlade upper row, top lug (T3)Runs up the left of the volume.Wireblack
15Bridge whiteBlade upper row, third lug (T2)Drawn with the red and labelled 'red & white'.Wirewhite
16Bridge redBlade upper row, third lug (T2)Shares the lug with the bridge white.Wirered
17Blade upper row, bottom lug (T4, common)Volume left lugWireblack
18Volume left lugTone left lugStraight down; the tone is drawn lugs up.Wireblack
19Volume middle lugJack tipHops one wire.Wireblack
20Tone middle lugTone .047 capWire

What each position does

SettingThe sourceEngine result
Bridge humbuckerPosition 1: Bridge Humbucker.Bridge Pickup (both coils).
Neck humbucker + bridge humbuckerPosition 2: Neck Humbucker plus Bridge Humbucker.Neck Pickup (both coils) and Bridge Pickup (both coils) in parallel.
Neck humbuckerPosition 3: Neck Humbucker.Neck Pickup (both coils).
Bridge split + neck split (legend says bridge humbucker + neck split)The printed legend says 'Position 4: Bridge Humbucker plus Neck Split', but the drawn wiring (followed here) gives the bridge humbucker split plus the neck split. The legend is wrong for this position; the drawing is a working circuit.Neck Pickup (split to one coil) and Bridge Pickup (split to one coil) in parallel.
Bridge splitPosition 5: Bridge Split.Bridge Pickup (split to one coil).

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

  • The printed legend's position 4 ('Bridge Humbucker plus Neck Split') disagrees with the drawing; the expected states follow the drawing (bridge split + neck split).
  • Which coil of each humbucker remains when split follows the Seymour Duncan lead colours of the generic pickup model; hum cancelling in position 4 is not claimed.
  • 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

  • Positions 1, 2 and 3: bridge humbucker, both humbuckers in parallel, neck humbucker.
  • Position 4: expect roughly half the resistance of either split coil (two single coils in parallel), not a full humbucker in parallel with a coil.
  • Position 5: expect roughly one coil of the bridge humbucker.

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.