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Just fished these tube pickups made from spent shotgun shells .

my first attempt and they have got a resistance of 1.3k and 1.4k not very high but thats how far i got before the wire broke, dammit.

I taped one to a guitar and it sounds pretty good , bit fuzzy but I like that.

My question is if they are mounted on a guitar with a three way switch , when in the centre position ie both pickups , do the two pickups act like a humbucker or just two single coils

Thanks

Rich

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I take it the inside is a standard coil structure and not something off-the-wall.   If you did something special, the "normal rules" may not apply.

A humbucker works by placing two opposite-wound coils (one clockwise, one counter-clockwise) next to each other, with the magnet polarities reversed (one North one South). 

If the coils in your pickups are running the same direction and the magnets the same polarity, they'll act as two single coils.  If the polarity of the magnets is identical, you'll want to space them at least 2" away from one another to prevent the magnetic fields from fighting each other.

That's the "official" story.  Myself, I'd go ahead and try them and see how it sounds.  Some people like the sound of out-of-phase pickups. 

Thanks , I understand now .

So two single coils it is then.

Cheers

Wayfinder said:

I take it the inside is a standard coil structure and not something off-the-wall.   If you did something special, the "normal rules" may not apply.

A humbucker works by placing two opposite-wound coils (one clockwise, one counter-clockwise) next to each other, with the magnet polarities reversed (one North one South). 

If the coils in your pickups are running the same direction and the magnets the same polarity, they'll act as two single coils.  If the polarity of the magnets is identical, you'll want to space them at least 2" away from one another to prevent the magnetic fields from fighting each other.

That's the "official" story.  Myself, I'd go ahead and try them and see how it sounds.  Some people like the sound of out-of-phase pickups. 

Also of note here is that the coils do not need to be reverse wound from each other necessarily, only connected electrically reversed or out of phase from one another.  The classic example is the original Patent Applied For Humbucker designed by Seth Lover for Gibson where coil #1's start lead is grounded and its finish lead is connected in series to coil #2's finish lead, then coil #2's start lead is connected to hot.  Both coils are wound in the same direction on the winder.  If the coils are wound in opposite directions from one another then coil #1's start lead could still be ground but its finish lead would now be connected in series to coil #2's start lead and coil #2's finish lead connected to hot.  In both cases each coil has the opposite magnetic polarity from one another as well as being out of phase electrically from one another.

Thanks for that explanation Andrew, I was thinking along those lines but didnt know how to explain it.

so i should be able to wire it so pos 1 is neck pos2 is both out of phase pos3 bridge.

Will be intersting to see what it sounds like when I get it together

In my example above, that would be considered series humbucking and will yield the most signal output.  With a common 3 way switch you would able to achieve parallel humbucking which will not yield as much output, but still be humbucking if the criteria is met that electrically and magnetically both coils are out of phase to one another.

You could also connect the coils so they are out of phase but not humbucking (by both coils having the same magnetic pole) which will yield the least signal output of all possibilities and sound notched or nasally which can be good depending on your taste.

thanks for explaining this to me , I wish Id payed more attention now to which way the magnets were oriented when I wound them.

Thanks again Andrew for the valuable information

Cheers

Rich

You can still figure it out easily enough knowing that like poles will repel each other while opposite poles attract.  So take a small magnet you have on hand and touch one of its poles to your pickups magnets and see if it attracts or repels.  You could do this with a magnetic compass as well.

Richard said:

thanks for explaining this to me , I wish Id payed more attention now to which way the magnets were oriented when I wound them.

Thanks again Andrew for the valuable information

Cheers

Rich

Thanks for that info Andrew.  I wasn't aware of that.  Opens up whole new possibilities.  : )

Andrew Hanrahan said:

Also of note here is that the coils do not need to be reverse wound from each other necessarily, only connected electrically reversed or out of phase from one another.  The classic example is the original Patent Applied For Humbucker designed by Seth Lover for Gibson where coil #1's start lead is grounded and its finish lead is connected in series to coil #2's finish lead, then coil #2's start lead is connected to hot.  Both coils are wound in the same direction on the winder.  If the coils are wound in opposite directions from one another then coil #1's start lead could still be ground but its finish lead would now be connected in series to coil #2's start lead and coil #2's finish lead connected to hot.  In both cases each coil has the opposite magnetic polarity from one another as well as being out of phase electrically from one another.

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