Wiring Diagram – Seymour Duncan 78 – HH – 1X Volume, 1X Tone – Blade Switch

In this post, you’ll find the details needed to wire up a set of Seymour Duncan 78 humbucker pickups. This configuration is fairly straightforward. There is one master volume and one master tone. Both of these pots are 500K ohms. The selector is a standard three-way blade switch, as found in a Fender Telecaster. As with all Seymour Duncan four-wire humbuckers, the black wire is the “hot,” the green wire goes to the ground, and the red & white wires are soldered together.

  • Bridge Pickup: Seymour Duncan 78
  • Neck Pickup: Seymour Duncan 78
  • 1 X Volume – 500K
  • 1 X Tone – 500K
  • Standard 3-way blade switch



Our resident electronics wizard came by his skills honestly — first as an apprentice in his father’s repair shop, later as a working musician and (most recently) as a sound designer for film. His passion for guitar led him to Humbucker Soup, where he continues to decode the wonders of wiring and the vicissitudes of voltage. Ed has never taken his guitar to a shop — he already knows how to fix it.