Legacy hum-cancelling question

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Toejam
Posts: 37
Joined: Fri May 06, 2016 1:28 pm
Location: Sayreville, NJ 08872

Legacy hum-cancelling question

Post by Toejam »

With my Legacy HB (or now called HSS) the Duncan JB humbucker has a switch to split the coils. In position 2 (bridge and middle on together) is the 2nd position supposed to be hum-cancelling with the humbucker not split?
Cactus Jack
Posts: 103
Joined: Fri Mar 15, 2019 10:35 am

Re: Legacy hum-cancelling question

Post by Cactus Jack »

Yes, position 2 should be completely hum free. If it's not, but position 4 is hum free, it may be a loose wire or something very simple.
Toejam
Posts: 37
Joined: Fri May 06, 2016 1:28 pm
Location: Sayreville, NJ 08872

Re: Legacy hum-cancelling question

Post by Toejam »

Hmmm. Position 4 is hum free. Position 2 is not totally hum free without being coil split, but definitely gets more hum when I do spilt the humbucker with it. I guess a wire must be loose somewhere then? Thanks.
Last edited by Toejam on Thu Mar 28, 2019 5:37 pm, edited 1 time in total.
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Danley
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Location: Orange County, California Republic

Re: Legacy hum-cancelling question

Post by Danley »

A humbucker with both coils active + a single cannot hum cancel. You'd only get hum canceling when the RWRP coil of the humbucker (relative to the single) is combined with the single.
Toejam
Posts: 37
Joined: Fri May 06, 2016 1:28 pm
Location: Sayreville, NJ 08872

Re: Legacy hum-cancelling question

Post by Toejam »

Danley wrote:A humbucker with both coils active + a single cannot hum cancel. You'd only get hum canceling when the RWRP coil of the humbucker (relative to the single) is combined with the single.
Ah, okay. That makes sense. Guess the opposite coil of the humbucker would need to be split then. Thanks!