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How to make hum disappear on single coil pickups (finally!!)

Every single coil equipped bass I have ever purchased has been grounded properly. It's simply that single coils are prone to excessive buzzing.

And that's where you get wrong. Grounding does nothing on huming. People always get the two confused... that's an endless story. But good for you if you've always bought perfectly gounded basses. I had a Amercan P (not personally but one I got to play with) that needed better grounding
 
The only instrument with single coils I had that was hum free was a Gibson Blues Hawk, on account of it had a reverse wound dummy coil in circuit. Being me I took that out and made it into a reverse wound P90 and got a local luthier to rout a middle pickup slot and now it's in there. So now I have a guitar with three P90s with the middle one reverse wound. A guitar which hums of course, but sounds like a Strat on meth. Ok I admitted it I own a 6-string...
 
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And that's where you get wrong. Grounding does nothing on huming. People always get the two confused... that's an endless story. But good for you if you've always bought perfectly gounded basses. I had a Amercan P (not personally but one I got to play with) that needed better grounding
How am I wrong about having properly grounded basses that only hum because they have single coils?
 
The only instrument with single coils I had that was hum free was a Gibson Blues Hawk, on account of it had a reverse wound dummy coil in circuit. Being me I took that out and made it into a reverse wound P90 and got a local luthier to route a middle pickup slot and now it's in there. So now I have a guitar with three P90s with the middle one reverse wound. A guitar which hums of course, but sounds like a Strat on meth. Ok I admitted it I own a 6-string...
That dummy coil is DA BOMB! I still regret selling my BluesHawk back in 2002 or so... at the time I thought I "needed" a thicker sounding LP for playing leads... but almost immediately after selling the BluesHawk I got a 'vocalist' gig playing mostly bright chimey rythmn guitar... the BluesHawk would have been magnificent for that...:)
 
Single-coil pickups are noisy by nature.
They're sensitive to electromagnetic interference radiated by lights, TVs and appliances.
The magnetic coil is an antenna, and it picks up 60 cycle hum.
It gets worse on stage, with your guitar picking up neon bar signs, fluorescent lights and the beer cooler kicking on and off throughout your set. At high volumes it gets worse, compounded by the high gain settings on your amp (StewMac).

Electromagnetic interference, not air.

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That dummy coil is DA BOMB! I still regret selling my BluesHawk back in 2002 or so... at the time I thought I "needed" a thicker sounding LP for playing leads... but almost immediately after selling the BluesHawk I got a 'vocalist' gig playing mostly bright chimey rythmn guitar... the BluesHawk would have been magnificent for that...:)

Here's mine... 70s P90 in the neck position, dummy coil made into a working pickup in the middle, P100 at the bridge.
 
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