Can you "partially" split a pickup with a push-pull?

[Diego]

I searched this on Google with no answers...

I'd like to split the bridge humbucker in my Ibanez, but not fully like it does now. It gets too twangy currently and I'd love it to split but keeping, say, 25% of coil that remains fully out when split, as if I had a spin-a-split set to 3-4 in the knob.
This way it would add a bit more beef than fully split while still clearing up. I'm using a shared push-pull (tone pot) for splitting both humbuckers but I would NOT like this to happen with the neck pickup, only the bridge. The neck splits fine as it is.

Is there any way I can drop a resistor or do some sort of wiring trick to make this happen?

 

[trevorus]

Re: Can you "partially" split a pickup with a push-pull?

Yeah, you can put in a set resistance in parallel with that coil, but finding what that is will be a matter of experimentation.

 

[Demanic]

Re: Can you "partially" split a pickup with a push-pull?

How about using the push/pull to switch the humbucker coils between series and parallel with themselves? More useful IMHO

Sent from my MotoE2(4G-LTE) using Tapatalk

 

[freefrog]

Re: Can you "partially" split a pickup with a push-pull?

To achieve what you want, all you have to do AFAIK is to put a resistor in series, between the split of your treble pickup and the post where it's currently soldered (the one enabling and disabling the connection to ground).

To decide which value you should use, you could experiment with a trimmer pot...

...Or calculate the resistance of a "spin a split" pot @ 25%, according to the value of this pot and to its taper: http://www.planetz.com/wp-content/uploads/2009/10/Tapers.png

Good luck!

 

[blueman335]

Re: Can you "partially" split a pickup with a push-pull?

Why not use spin-a-split? You can get exactly what you want, and instantly change it to fit different songs/venues.

You can wire the tone pot so it's only connected to the bridge PU. If you like the tone of the neck PU with two pots, you can: change the neck volume pot value, add a resistor, or add a hidden put in the control cavity.

 

[Diego]

Re: Can you "partially" split a pickup with a push-pull?

Thanks! I'll figure the schematic out somehow.

Blueman... I've only got three pots on this axe and independant volumes are a must for me. So I'm out of options.

That's unless I went with concentrics, which we only see in basses, for some reason.

 

[blueman335]

Re: Can you "partially" split a pickup with a push-pull?

Thanks! I'll figure the schematic out somehow.

Blueman... I've only got three pots on this axe and independant volumes are a must for me. So I'm out of options.

The way I wire 3 pot guitars is the bridge with a volume and dedicated tone (standard wiring: tone pot directly to volume pot), and the neck with just a volume.

 

[swissmountain]

Re: Can you "partially" split a pickup with a push-pull?

PRS used to split the pickups in the DGT with a series resistor between the tap (for Duncans white + red) and ground. 1.1k for the neck pickup and 2.2k for the bridge pickup. I tried resistors up to 3.3k and it works well.

 

[GilmourD]

Re: Can you "partially" split a pickup with a push-pull?

I searched this on Google with no answers...

I'd like to split the bridge humbucker in my Ibanez, but not fully like it does now. It gets too twangy currently and I'd love it to split but keeping, say, 25% of coil that remains fully out when split, as if I had a spin-a-split set to 3-4 in the knob.
This way it would add a bit more beef than fully split while still clearing up. I'm using a shared push-pull (tone pot) for splitting both humbuckers but I would NOT like this to happen with the neck pickup, only the bridge. The neck splits fine as it is.

Is there any way I can drop a resistor or do some sort of wiring trick to make this happen?

You'd want to wire a voltage divider up as if it's a volume control for just that coil. A volume control is just a voltage divider. Just gotta figure out what resistances a pot would present at that position.

 

[Silence Kid]

Re: Can you "partially" split a pickup with a push-pull?

You could coil tap as opposed to coil split, and keep a portion of the opposite coil active. G&L used this method in the eighties.

 

[DrNewcenstein]

Re: Can you "partially" split a pickup with a push-pull?

Run each coil to a concentric pot (250/250) as if it was two single coils, then mix them however you want. More slug than screw, more screw than slug, no-slug-half-screw. Throw a series/parallel push pull on the Tone to go with it.

 

[ItsaBass]

Re: Can you "partially" split a pickup with a push-pull?

Yes. Same concept as the Spin-o-Split, only non-adjustable. In my experience, it's the best way to make a lightly wound humbucker have a nice split tone.

 

[ItsaBass]

Re: Can you "partially" split a pickup with a push-pull?

P.S. You can make that resistor a trim pot instead. That way you can go in and adjust the amount of dropoff with a little screwdriver, instead of trying a bunch of different resistors, and then being stuck with the one you pick.

 

[eclecticsynergy]

Re: Can you "partially" split a pickup with a push-pull?

+1

I always recommend a trimpot for this. That way you can tweak it to taste, and change it later if your tastes ever change.