# Two humbuckers, blade, series/parallel and phase mini-toggles

Canonical page: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-blade-series-parallel-phase

HH · 3-way blade · 1V · series/parallel · phase

Two humbuckers, blade, series/parallel and phase mini-toggles. Transcribed from the manufacturer wiring sheet.

Drawing: https://guitarwiring.app/wiring-diagrams/seymour-duncan/two-humbuckers-blade-series-parallel-phase.svg (back of controls)

## Parts and values

- Neck pickup: Neck pickup; generic (Humbucker (four-conductor, Seymour Duncan colours))
- Bridge pickup: Bridge pickup; generic (Humbucker (four-conductor, Seymour Duncan colours))
- 3-Way Blade Switch: 3-Way Blade Switch; compatible example (CRL 3-Way Blade)
- Volume 500k: Volume 500k; 500k; compatible example (CTS 500k Audio Pot)
- Output Jack: Output Jack; compatible example (Switchcraft \#11)
- Bridge Ground Wire: Bridge Ground Wire; generic (Bridge ground wire)
- Phase switch ON/ON mini-toggle: Phase switch ON/ON mini-toggle; compatible example (DPDT Mini-Toggle)
- Series/parallel switch ON/ON mini-toggle: Series/parallel switch ON/ON mini-toggle; compatible example (DPDT Mini-Toggle)

## Specific to this wiring

- Mini-toggle tags mapped by function where unlabelled.

## Connections

1. Neck pickup gnd → Phase switch ON/ON mini-toggle T5 (wire, green)
2. Neck pickup bare → Volume 500k casing (wire, bare)
3. Bridge pickup gnd → Volume 500k casing (wire, green)
4. Bridge pickup bare → Volume 500k casing (wire, bare)
5. Phase switch ON/ON mini-toggle T3 → Volume 500k casing (wire, black)
6. Volume 500k lug1 → Volume 500k casing (wire, ground)
7. Volume 500k casing → Output Jack sleeve (wire, black)
8. Bridge Ground Wire ground → Volume 500k casing (wire, black)
9. Series/parallel switch ON/ON mini-toggle T3 → Volume 500k casing (wire, black)
10. Bridge pickup gnd → Series/parallel switch ON/ON mini-toggle T6 (wire, green)
11. Neck pickup hot → Phase switch ON/ON mini-toggle T2 (wire, black)
12. Phase switch ON/ON mini-toggle T1 → 3-Way Blade Switch T8 (wire, black)
13. Phase switch ON/ON mini-toggle T1 → Phase switch ON/ON mini-toggle T6 (wire, black)
14. Phase switch ON/ON mini-toggle T4 → Phase switch ON/ON mini-toggle T3 (wire, black)
15. 3-Way Blade Switch T3 → 3-Way Blade Switch T2 (wire, black)
16. 3-Way Blade Switch T2 → 3-Way Blade Switch T6 (wire, black)
17. 3-Way Blade Switch T6 → 3-Way Blade Switch T5 (wire, black)
18. 3-Way Blade Switch T5 → Volume 500k lug3 (wire, black)
19. Bridge pickup hot → Series/parallel switch ON/ON mini-toggle T2 (wire, black)
20. Series/parallel switch ON/ON mini-toggle T1 → 3-Way Blade Switch T4 (wire, black)
21. Series/parallel switch ON/ON mini-toggle T1 → Series/parallel switch ON/ON mini-toggle T6 (wire, black)
22. Series/parallel switch ON/ON mini-toggle T4 → Series/parallel switch ON/ON mini-toggle T3 (wire, black)
23. Neck pickup black → Neck pickup white (wire, red)
24. Bridge pickup black → Bridge pickup white (wire, red)
25. Volume 500k lug2 → Output Jack tip (wire, black)

## What each position does



- Engine rule selectionReachesTip / noShort on the transcribed blade + mini-toggle map; topology matches the manufacturer sheet.
- Engine rule selectionReachesTip fails on the transcribed board; passive position analysis is not verified.
- Engine rule noShort fails on the transcribed board; passive position analysis is not verified.
- Engine rule requiredTerminalsWired fails on the transcribed board; passive position analysis is not verified.

## Check before plugging in



## Source

Tinkercaster's own drawing of the Seymour Duncan diagram 2H\_3B\_1V\_mtSP\_mtPH, revision 1. Not the manufacturer's artwork and not endorsed by Seymour Duncan.

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