# P90 neck and humbucker bridge with a three-way toggle, one volume and one tone

Canonical page: https://guitarwiring.app/wiring-diagrams/tonerider/p90-neck-humbucker-bridge-three-way-toggle-volume-tone

P90 + humbucker · Three-way toggle · One volume · One tone

Tonerider's 1 P90, 1 Humbucker, 1 Volume, 1 Tone harness: a P90 in the neck and a four-conductor humbucker in the bridge on a three-way toggle, then a 500kA volume and a 500kA tone with a .022 µF capacitor.

Drawing: https://guitarwiring.app/wiring-diagrams/tonerider/p90-neck-humbucker-bridge-three-way-toggle-volume-tone.svg (back of controls)

## Parts and values

- Neck Pickup (P90): Neck Pickup (P90); generic (Single-coil pickup (two-conductor))
- Bridge Pickup: Bridge Pickup; generic (Humbucker (four-conductor, DiMarzio colours))
- 3-Way Toggle: 3-Way Toggle; compatible example (Switchcraft 3-Way Toggle)
- Volume 500kA: Volume 500kA; 500k; compatible example (CTS 500k Audio Pot)
- Tone 500kA: Tone 500kA; 500k; compatible example (CTS 500k Audio Pot)
- .022µf: .022µf capacitor (drawn orange); 22nF; compatible example (Orange Drop .022µF)
- Output Jack: Output Jack; compatible example (Switchcraft \#11)
- Ground Wire from Bridge: Ground Wire from Bridge; generic (Bridge ground wire)

## Specific to this wiring

- Printed on the sheet next to the bridge humbucker's black and white leads: 'Solder Black and White wires together, and insulate with heat shrink or electrical tape.'
- The neck pickup's white lead goes to the toggle's upper outer lug; its black lead and its 'Bare Shield Wire' both go to the toggle's top (frame) lug.
- The bridge humbucker's red lead goes to the toggle's lower outer lug; the toggle's middle lug runs to the volume's left lug, which also feeds the tone's left lug.
- The bridge humbucker's green lead and 'Bare Shield Wire' end on one solder spot on the volume casing.
- The volume's middle lug goes to the jack tip; its right lug has a short link to the volume casing.
- The tone's middle lug goes through the .022µf capacitor to the tone casing; its right lug is drawn empty.
- Legend printed on the sheet: the ground symbol means 'Connection to Ground'. The source marks the toggle frame lug, the volume casing, the tone casing and the jack sleeve with ground symbols; here they are all wired to the volume casing. That is a routing choice, not a solder point shown in the source.
- The 'Ground Wire from Bridge' ends on the volume casing.
- Pickup series printed on the sheet: all Tonerider P90s in combination with 'AC' and 'H' series humbuckers.
- The toggle tags are not labelled in the source, so they are mapped by what each does.
- The bridge red lead is drawn crossing the grey toggle-to-volume wire below the toggle with no solder dot.

## Connections

1. Bridge green → Volume casing (case, green)
2. Bridge bare shield → Volume casing (shield, bare): Same solder spot as the green lead.
3. Neck black and bare shield → Toggle frame lug (wire, black): The black lead and the bare shield are drawn side by side to the same lug; one ground wire represents both.
4. Toggle frame lug → Ground (Volume casing) (case): The source shows a ground symbol.
5. Volume right lug → Volume casing (case, black): Short link.
6. .022µf capacitor → Tone casing (case)
7. Tone casing → Ground (Volume casing) (case): The source shows a ground symbol.
8. Jack sleeve → Ground (Volume casing) (wire): The source shows a ground symbol.
9. Ground Wire from Bridge → Volume casing (case): The source also shows a ground symbol at this solder spot.
10. Bridge red → Toggle lower outer lug (wire, red)
11. Neck white → Toggle upper outer lug (wire, white)
12. Toggle middle lug → Volume left lug (wire)
13. Bridge black → Bridge white (insulated, black): Soldered together and insulated, as printed on the sheet.
14. Volume middle lug → Jack tip (wire)
15. Volume left lug → Tone left lug (wire)
16. Tone middle lug → .022µf capacitor (wire)

## What each position does

- Neck: P90: Neck Pickup (P90). Source: The neck white lead is on the toggle's upper outer lug.
- Middle: both pickups: Neck Pickup (P90) and Bridge Pickup (both coils) in parallel. Source: Both outer toggle lugs join the middle lug.
- Bridge: humbucker: Bridge Pickup (both coils). Source: The bridge red lead is on the toggle's lower outer lug; black and white are joined, so both coils run in series.

- The P90 is simulated as a generic two-conductor single coil; hum and phase describe that generic model, not the P90.
- Hum cancelling and phase for the humbucker describe the generic pickup model, not a measurement of the Tonerider humbucker.
- The source does not label the toggle positions; they follow the usual neck, both, bridge order.
- Pickup resistance is not specified, so no numeric meter readings are given.

## Check before plugging in

- In each toggle position the meter across the jack reads the P90, both pickups in parallel, or the full humbucker.
- With the volume at zero, tip and sleeve should read as a short in every position.

## Source

Tinkercaster's own drawing of the Tonerider diagram 1\_P90\_1\_HB\_1V\_1T, revision 1. Not the manufacturer's artwork and not endorsed by Tonerider.

See also [all wiring diagrams](<https://guitarwiring.app/wiring-diagrams/index.md>).
