Pbass with a blend pot

[BubbaLee77]

Is it possible to wire a blend pot in a Pbass? I have a A250K volume pot with a treble bleed circuit. Plus I have a A250K/1Meg blend pot. I was thinking about using the blend pot along with the A250K volume pot. In my Rogue SX100B generic Pbass. Is it possible, and would there be any wiring diagrams? To where I could go use as a reference guide. The split coil Pbass pickup has a hot and a ground wires. I have uploaded two pictures of the Pbass and the pots with the output jack.

 

[SteveCS]

What are you hoping to blend, since there is only one pickup? Using one or the other half as volume or tone could be done but it will only work through half of the turn - the other half turn will be fully on (or off) depending on how you wire it up.

 

[S-Bigbottom]

Them two all ready act as one.

To blend the back with the front, adjust the height of each pickup with a screwdriver until they blend.
Done.

 

[PhatBottomBass1]

I believe, that's called a SUCK KNOB??

 

[4string5string]

Oh yeah, quite possible and easily achievable with most P-bass pickups...advised? probably not

 

[5StringBlues]

Each thread is like a golden gift.

 

[monti2889]

There are some interesting possibilities. Blending two tone caps comes to mind quickly.

 

[SulzerType2]

There are some interesting possibilities. Blending two tone caps comes to mind quickly.

You would have some weird results with two caps in series, summing their values to varying degrees.

 

[ctmullins]

There are some interesting possibilities. Blending two tone caps comes to mind quickly.

That would provide an extremely subtle tonal shift. And I’m not really into extreme subtlety…

 

[BubbaLee77]

I've that the original Pbass pickup. Has 2 leads coming from each coil. One coil pickup has red and blue leads, and the other has a black and blue leads. Plus I have a 100k mini pot, a 250k/1meg blend pot. Would anyone have any idea, or a wiring diagram, for what I just had explained.

 

[BubbaLee77]

I uploaded a picture of what I'm thinking about. I have the wires to the location, but not permanently.

 

[BubbaLee77]

What are you hoping to blend, since there is only one pickup? Using one or the other half as volume or tone could be done but it will only work through half of the turn - the other half turn will be fully on (or off) depending on how you wire it up.

One coil had a north start and north finish. The other coil has a South start and finish .

 

[BassikLee]

Right, but all that would achieve is the ability to turn down and/or up the E&A strings relative to the D&G strings, and vice-versa. What would you do with that?

 

[SteveCS]

One coil had a north start and north finish. The other coil has a South start and finish .
...

I'm still not sure what will be acheived here. That pickup is designed to be used as a single unit. One coil senses 2 of the 4 strings, the other coil senses the other two strings. You can wire them in series or parallel. But the main purpose of having two coils is to cancel hum. In order to cancel hum, the coils need to be matched. As soon as your blend goes off centre you will get hum and interference.

If you want to use such a scheme to alter the relative volumes of the pairs of strings then yes, you could do that. But I have to say that, IME, 99.99999999% of players use a screwdriver for that purpose.

If you want to be able to adjust the string to string balance as you play, then that same 99.99999999% of players use their hands and technique, not a knob.