3 Wire Humbucker Wiring Diagram

A humbucker is a type of electric guitar pickup that uses two coils to cancel out the unwanted hum or noise that is normally produced by single coil pickups. A three wire humbucker is a variation that allows for more wiring options and customization. In this article, we will discuss the basics of 3 wire humbucker wiring diagrams and provide some helpful tips and FAQs for guitar enthusiasts.

What is a 3 Wire Humbucker?

A 3 wire humbucker is a type of humbucker pickup that has three wires instead of the standard two. The two wires are the traditional hot and ground wires, while the third wire is an additional ground wire that allows for greater flexibility in wiring options. This third wire can be used to split the coils, change the phasing, or wire in different configurations depending on the needs of the guitar player.

Basic Wiring Diagram

Before we dive into the different wiring options, it is important to understand the basic wiring diagram for a 3 wire humbucker pickup. The diagram below shows the standard wiring configuration:

Wire Color Function
Green Ground (for both coils)
Red/White Hot (for both coils)
Bare Ground (for cover only)

The above diagram shows the three wires that a 3 wire humbucker pickup has. The green wire is connected to the ground for both coils, while the red/white wire is the hot wire for both coils. The bare wire is connected to the ground for the cover only, and is not necessary for the operation of the pickup.

Wiring Options and Configurations

The additional ground wire on a 3 wire humbucker pickup allows for greater flexibility in wiring options and configurations. Here are some of the most common wiring options:

Coil Splitting

Coil splitting is a method of wiring that allows for the use of only one coil of a humbucker pickup. This creates a single coil sound that is brighter and thinner than the full humbucker sound. To wire a 3 wire humbucker for coil splitting, simply connect the third wire (usually green or bare) to the switch or potentiometer that controls the coil split. The diagram below shows a typical wiring diagram for coil splitting:

Wire Color Function
Green Ground (for both coils)
Red/White Hot (for both coils)
Bare Ground (for cover only)
Extra Wire Connect to switch or potentiometer for coil split

Phasing

Phasing is a method of wiring that changes the relationship between the two coils of a humbucker pickup. This can create a variety of different tones and sounds. To wire a 3 wire humbucker for phasing, simply reverse the hot and ground wires for one of the coils. The diagram below shows a typical wiring diagram for phasing:

Wire Color Function
Green Ground (for both coils)
Red/White Hot (for both coils)
Bare Ground (for cover only)
Extra Wire Reverse hot and ground for one coil

Series/Parallel

The series/parallel wiring option allows for the use of both coils in either series or parallel configurations, creating a variety of different tones and sounds. To wire a 3 wire humbucker for series/parallel switching, simply connect the third wire to the switch or potentiometer that controls the switch. The diagram below shows a typical wiring diagram for series/parallel switching:

Wire Color Function
Green Ground (for both coils)
Red/White Hot (for both coils)
Bare Ground (for cover only)
Extra Wire Connect to switch or potentiometer for series/parallel switching

FAQ

What is the difference between a 2 wire and a 3 wire humbucker pickup?

A 2 wire humbucker pickup has only two wires – a hot wire and a ground wire. A 3 wire humbucker pickup has an additional ground wire that allows for greater wiring options and customization.

How do I know which wire is the hot wire on a 3 wire humbucker pickup?

The hot wire on a 3 wire humbucker pickup is usually the red or white wire. However, it is always recommended to check the wiring diagram or contact the manufacturer to be sure.

Can I install a 3 wire humbucker pickup in a guitar that originally had a 2 wire pickup?

Yes, it is possible to install a 3 wire humbucker pickup in a guitar that originally had a 2 wire pickup. However, additional wiring and modifications may be necessary depending on the desired configuration.

What are some popular guitar models that use 3 wire humbucker pickups?

Some popular guitar models that use 3 wire humbucker pickups include the Gibson Les Paul, Gibson SG, and Fender Stratocaster.

Can I change the wiring configuration of a 3 wire humbucker pickup after it has been installed?

Yes, it is possible to change the wiring configuration of a 3 wire humbucker pickup after it has been installed. However, it may require additional wiring and modifications to the guitar.

Conclusion

A 3 wire humbucker pickup offers greater flexibility and customization options for guitar players. By understanding the basic wiring diagram and different wiring options, guitar enthusiasts can customize their pickups to achieve the desired sound and tone for their playing style.