Pickups for sale, pickups for sale
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Re: Pickups for sale, pickups for sale
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Default Re: Reverse wound versus out of phase
There are two ways to get out of phase.
Electrically and magnetically (both generally sound the exact same).
Reversing lead wires in one pickup is going to give you "electrical out of phase".
Reversing magnet polarity in one pickup is going to give you "magnetic out of phase".
Reverse magnet polarity AND lead wires (reversing current direction in coils) causes the sound to be in phase (with normal phase being "+" and reversed phase being "-", two negatives make a positive). The reversed polarity and reversed current is where 60 hz hum is cancelled.
A standard humbucker works having two coils, each with metal rods magnetized by a bar magnet underneath the coils. This bar magnet has a north polarity and south polarity, with an imaginary horizontal line straight across the middle of the magnet separating the two. So one coil's rods are magnetized with a "+" polarity and the other coil's rods are magnetized with a "-", resulting in the two coils being magnetically out of phase ("-").
The windings of each coil have their "start" and "finish". Reversing the "start" and "finish" on one coil makes it "-" while the other coil has a normal start and finish "+", resulting in the coils being electrically out of phase "-".
The combination of being magnetically out of phase ("-") and electrically out of phase ("-") returns the combination of coils to be of the same phase/in phase ("+") minus the 60 hz hum, which just got cancelled ("bucked").
Posts
5,136
Default Re: Reverse wound versus out of phase
There are two ways to get out of phase.
Electrically and magnetically (both generally sound the exact same).
Reversing lead wires in one pickup is going to give you "electrical out of phase".
Reversing magnet polarity in one pickup is going to give you "magnetic out of phase".
Reverse magnet polarity AND lead wires (reversing current direction in coils) causes the sound to be in phase (with normal phase being "+" and reversed phase being "-", two negatives make a positive). The reversed polarity and reversed current is where 60 hz hum is cancelled.
A standard humbucker works having two coils, each with metal rods magnetized by a bar magnet underneath the coils. This bar magnet has a north polarity and south polarity, with an imaginary horizontal line straight across the middle of the magnet separating the two. So one coil's rods are magnetized with a "+" polarity and the other coil's rods are magnetized with a "-", resulting in the two coils being magnetically out of phase ("-").
The windings of each coil have their "start" and "finish". Reversing the "start" and "finish" on one coil makes it "-" while the other coil has a normal start and finish "+", resulting in the coils being electrically out of phase "-".
The combination of being magnetically out of phase ("-") and electrically out of phase ("-") returns the combination of coils to be of the same phase/in phase ("+") minus the 60 hz hum, which just got cancelled ("bucked").
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