In order to achieve hum-cancellation we would expect one of the coils to be reverse-wound. So to get this with our four-conductor humbucker wire we just connect the end of one coil straight to the beginning of the next one, right? So our path from ground to hot starts at ground, goes around one coil, then around the other coil, and then out to hot. However, they are not connected in parallel, as we have been doing with our individual pickups up until now. In normal humbucking mode, both these coils are active. If you’d like to see what colours other pickup manufacturers use, there’s a handy diagram here. The colors used for this in a Seymour Duncan pickup are as follows: What four-conductor wiring gives us is a wire for the start and end of each coil in the humbucker. The magnetic field, however, is North polarity on the slug coil, and South polarity on the screw coil. On most traditional humbuckers, one coil has “slug” pole pieces, and the other has “screw” pole pieces. We have two coils, and each coil has a wire attached to each end of it. It’s two single coil pickups stuck together right? Well, very nearly, yes. The exception is of course RWRP pickups, which are of course North polarity. Usually, single coil pickups have the South pole of the magnet pointing at the strings. By then attaching each end of that coil of wire into our guitar circuit (through the white and black wires pictured), we get that sound into our amp. The string disturbs the magnetic field generated by the magnets and this induces a voltage change into the wire. There are some magnets (the pole pieces) and a very long coil of wire wrapped around them. Before we can start looking at those mods, however, we need to learn a little about what makes humbuckers tick.įirst let’s take a quick look at a single-coil pickup: But one of the main reasons players add switches to their guitars is to explore the tonal versatility offered by four-conductor humbuckers. The mod we made was a simple “add neck pickup” switch for a Strat. In the previous article, we took a first look at adding switches to a guitar.
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