Made a world of difference. I've used them elsewhere too. Basically the humbucking coil is buried under the main coil. Because of physics, sources of hum and interference tend to be of equal strength at each coil and thus cancel out. That's all. BTW I've also used the Carvin stacked umbuckers: pretty cheap, and perfectly good sound.
Homer Simpson?! What I meant to ask is how does it actually work? From what little I understand, a conventional humbucker works like this: You have a coil of wire wrapped around a core with some magnets in it.
The strings perturb the magnetic field, inducing a current in the coil. The coil, however, acts as an antenna and picks up a whole pile of noise. So you have another coil, wound in the opposite direction, so it picks up the same noise, but with the opposite phase. The 2nd coil's magnets are polarized in the opposite direction, so the signal it produces comes out the same phase as the first one i.
And if you have just the one set of magnets, wouldn't the signal from one coil cancel the signal from the other? Matt, Your analysis of a standard humbucker is correct.
The "fat" sound is caused mostly by the two different parts of the string that are sampled; higer harmonics can either have the string moving the same way or opposite over the different coils. This creates a comb filter effect. I don't know, just asking. Thanks for the help! In a sense, there is only one "magnet" in a PAF-style humbucker as well. It just happens to be U-shaped, with some "fingers" that extend out of the magnet at each end and take a sharp degree turn.
We think of the two coils as if they lived in separate magnetic universes, but really, it's just one coil at the southy end of the magnet and another at the northy end of the same magnet. When one makes a stacked humbucker, all you're really doing is "straightening out the magnet". In this case, it is essentially a stacked humbucker sitting on its side, with "fingers" protruding from the middle.
Originally posted by nickc35 View Post. Originally posted by Mark Hammer View Post. As my good friend SonnyW calls it, it is the Magnetic window. The PAF style Humbucker has 2 magnetic windows that you energize with the strings.
The North magnetic poles on one side and the South magnetic poles on the other. The Strings and flux fields are effected by both north and south, when the strings move by.
On the Stacked Coil there is only one magnetic widow. The coil on the bottom is not directly effected by the moving field of the strings, and is more of a dummy coil. It is there primarily to cancel the 60 Cycle hum. That is the mental picture I have of it. If someone else wants to explain it without getting too Engineering deep, Please do.
Originally posted by davos View Post. Do both coils need a similar amount of turns to cancel the 60 cycle hum? Would it work for instance if one coil had 10K turns and the other had just ? Im just thinking from a construction point of view, not tonal.
However, I don't think a coil with turns will get you by. So I think you will be able to have mismatched coils, just not sure how much. If you see it again it's because something has changed so please set your preferences accordingly.
My Studio. What's the point of stacked humbuckers in a strat? There is also a picture of two stratocasters owned by Lanois both of which have Seymour Duncan Hot stacks pickups the text says Hot Rails, but they look like Hot Stacks. I am a big Lanois fan and love his tone, but my question would be, why would you use humbuckers on a strat?
Doesn't that take away all the chimey stratiness that strats are famous for? Johnny Favorite. What you lose in chime, you get in bark. And no hum. I guess the simplest answer is a new pickup is a lot cheaper than a new guitar. I have a JB Jr. The above-mentioned reason is probably why I did it in the first place. Now, I actually kinda' prefer it to a full-on humbucker.
It's not as muddy. In the bridge position it gives you a lot of functionality. You can rock or play a lead - but you still have the single coil options in middle and neck position.
You also have to think about the guitarist's style. Pete Townsend would have a different view in the role of pickups than, say, Satriani. Interesting, thanks. I suppose that hum is an important concern with single-coil pickups. And I also see the versatility point of having one humbucker and two single-coils.
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