Jazz/JB with coil splits in a LP

W

Woody777

New member
I've finally decided:

I will replace the 490R/498T pickups in my Gibson Les Paul Studio with a Seymour Duncan Jazz/JB set. And I will replace my tone pots with push/pull pots to split each pickup.

Anybody have a similar setup or have experience with a similar setup - I'm curious to get some opinions and what kind of tones I can expect.

BTW - I play a Mesa Mark IV - I'm going for versatility out the wazoo here.

Oh - and a big thank you to Lew for the suggestions AND the installation he agreed to do.
 
Re: Jazz/JB with coil splits in a LP

I have the same Jazz/JB set up in my LP Standard and also wanted to split the coils. I called my tech last night and he told me to come over as this could be done in about 5 minutes. He wasn't kidding: all he had to do on each pup is connect two of the wires to an open spot on its respective tone pot (no need for push-pull pots either). The way is works is as follows: your tone control works from 0 to 8 and the pup goes into split mode when the tone is set to 10. We plugged the guitar into a clean amp and it worked perfectly, and although we couldn't turn up too loud, you could really hear the difference: the split mode was a lot brighter and not as thick or sustained as full HB mode (just what you would expect). I can't wait for our next band practice to try it out through my plexi!

P.S. my tech also said that he preferred wiring HB's in parralel instead of coil splitting, because of the coil-split's hum, but we'll see. BTW you do need the push/pull pots for series/parrallel wiring.
 
Re: Jazz/JB with coil splits in a LP

What No effects is describing, is exactly Peavey T-60 wiring:

T-60.jpg


Ignore the phase switch in the lower left corner. In this diagram, to convert to SD wiring:

Peavey white = SD black
Peavey red = SD red/white combo
Peavey green = SD green

Although, I've had folks with T-60's ask me to show them how to convert back to "normal" splitting using a switch or push/pull pot, so it isn't everyone's cup-o-tea. ;)
 
Re: Jazz/JB with coil splits in a LP

That's a cool option No Effects - I wasn't even aware you could do that. But I think I want to replace my tone pots with push/pull pots. That way I can use the full range of the tone knob for the humbuckers and the full range for the split. And then when I want to switch to single coils I just have to pull the knob for which ever pickup I'm using.

Anybody else use this combo?
 
Re: Jazz/JB with coil splits in a LP

ArtieToo said:
What No effects is describing, is exactly Peavey T-60 wiring:

T-60.jpg


Ignore the phase switch in the lower left corner. In this diagram, to convert to SD wiring:

Peavey white = SD black
Peavey red = SD red/white combo
Peavey green = SD green

Although, I've had folks with T-60's ask me to show them how to convert back to "normal" splitting using a switch or push/pull pot, so it isn't everyone's cup-o-tea. ;)
Click to expand...

That is cool! How's it sound? Does it work as well as splitting the coils with a switch? Lew
 
Re: Jazz/JB with coil splits in a LP

Lewguitar said:
That is cool! How's it sound? Does it work as well as splitting the coils with a switch? Lew
Click to expand...

Sorry Lew, I don't actually have a T-60 in my collection . . . yet. :rolleyes:
Basically, as you bring the tone control around, the resistance drops sufficiently that the red/white is effectively shorted, thus, coil split. And of course, with the tone on "10", it would always be.

The limitation is, for humbucker operation, you can only ever have the tone control on around 7, or lower.

Hopefully, someone that owns one will chime in on how well it works.

Artie
 
Re: Jazz/JB with coil splits in a LP

I will be able to review it sometime next week. And regarding the lack of tone control - I agree with Woody that not having any over the split sound is a bit of a drag, but as far as the HB, my tech told me that you don't really lose anything b/c your tone maxes out at 8 anyway (i.e., without mods, nothing happens to tone between 8 and 10). Given that this mod was easy to do (and free), at least I'll get an indication whether I like it, and if so, I can make it more permanent and versatile via p/p pots. Obviously, if the hum is a problem, it'll be a p/p pot to run the pups in series/parallel instead of series/split.
 
Re: Jazz/JB with coil splits in a LP

I'm not too worried about the single coil hum. My Strat wasn't that much noisier than my Les Paul. And according to the FAQ section on the Seymour Duncan homepage (which is so helpful BTW), running a humbucker in parallel mode rather than splitting it into a single coil results in a weaker signal and a greater decibel cut - but it also says the two methods sound very, very similar.
 
Re: Jazz/JB with coil splits in a LP

Woody777 said:
I'm not too worried about the single coil hum. My Strat wasn't that much noisier than my Les Paul. And according to the FAQ section on the Seymour Duncan homepage (which is so helpful BTW), running a humbucker in parallel mode rather than splitting it into a single coil results in a weaker signal and a greater decibel cut - but it also says the two methods sound very, very similar.
Click to expand...
Boy oh boy can you ever the hum, especially when you can go between SC and HB by twisting the knob. The mod itself is really cool, just what you would expect, especially on the JB, but I think I'll try the parallel mod instead. By the way, I didn't really notice a big drop in volume between the two modes.
 
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