hsp90 mississipi queen : phase question

[lp69]

Hello everybody body,

New user here with a set of  mississipi queen.
My question is about phase. With single coils i'm used to have hum cancelling when both pickups are selected.
Here not. I'm ready to open a pickup and switch the magnet if necessary, but is there any way i can wire the pickups to have the same result ?

[Dave Sloven]

To do that you have had to have selected 'RWRP' as an option for the neck pickup.

Personally I prefer the sound of a stock wind, which is what you will get unless you change the default to RWRP

http://www.youtube.com/watch?v=f3BX0wgwypQ

[lp69]

I bought them used so found them like that.
So what's my best way to fix that ? magnet flip or different wiring ?

[FELINEGUITARS]

Magnet flip won't be enough (and that is more complex on a P90 because you need to flip both magnets and make sure they stay opposing each other)
You will also need one of the two pickups to be wired 2 core plus screen so you can reverse the phase or else you will be out of phase sonically and still have hum.

[Philly Q]

Flipping the magnet will put the pickups out of phase but won't make them hum-cancelling, you need one pickup to be both reverse polarity and reverse wound (RWRP) to do that.

If your pickups have the type of cable with a braided shield around a single conductor wire, you can't really do anything with the wiring, as the shield is also grounding the metal cover and baseplate.

If you have the type of cable with two conductors plus a separate shield wire, you can get the RWRP hum-cancelling effect by (1) flipping the magnet then (2) swapping round the two conductors (but leaving the shield wire connected to ground).

[lp69]

Thnak you guys,  I understand the problem better now. You saved me a lot of time.
I have the braided shield around a single conductor wire , so it's dead for me :(

[Philly Q]

Embrace the hum!  :D

I've always wondered how much of a problem single-coil hum really is in practice.  I know if I sit in front of a monitor with a Fender or something with P-90s, it's going to hum, but I don't gig so I don't know how bad it can be in "real-life" situations.  A lot of manufacturers have worked hard to defeat the problem, but on the other hand there are an awful lot of players who seem to be OK with using single-coils on stage.

[lp69]

Well. Below is picture of where I live, the green arrow is the room where i mainly play guitar, the red arrow is an electric transformer of the french company of Electricity.
Believe me, I do embrace much hum, but at one point, too much is too much  :lol:

[Philly Q]

Believe me, I do embrace much hum, but at one point, too much is too much  :lol:

I take your point.  Good illustration!  :lol:

[Kiichi]

Is the hum also horrible while playing or only in the pauses and such? Cause if it is the later a simple noisegate might be an investment. Certainly like it with my P90s and a lot of overdrive which can get noisy too. Got me an ISP Decimator clone and now I only have noise while actually playing (and well it is rather metal and rock so no one cares), the rest is clean silent.
If the situation is bad but not utterly extreme that might at least lighten your burden.

[lp69]

Hum is horrible. I've got hum even with cleans. Sure did I buy an ISP decimator to help me, but  it's not perfect and the situation with P90 is the worst.
My best noisegate is the angle : when I look to the south west, hum is reduced by 90%, unfortunately it's not very convenient here and if i move just a little, hum is back.
All my guitars are shielded and my single coils in intermediate position and humbuckers work well hopefully.
The good point, now I don't fear hum in any venue :)

[Dave Sloven]

If it's doing that to your guitar I hate to think what it is doing to your body.

I hope the rent is cheap

[Philly Q]

Not trying to put you off BKPs, but just out of curiosity, have you tried any of the hum-cancelling P-90 pickups made by Fralin, Kinman or Lace?

I've only tried the Gibson P-100 (which isn't great) and some of the DiMarzio DLX models (which are good, but they're really just conventional humbuckers in P-90 size).

[lp69]

I didn't know about hum canceling P90'S.
Actually I wasn't much after P90's until I found those BKP used at half price, and took a chance on them, as I really like the BKP pickups I currently own (Riff Raff + Mother Milk's).

[lp69]

So I 'm going to sell them  , willing to exchange them vs Nailbomb(s). PM if interested