Bartolini Wiring Diagram

[blipndub]

I'm not getting the sound I would like from my PJ configured Bartos and I'm wondering if the wiring is amiss. The diagram that came with the bridge pup is a bit different from standard wiring and it only shows one pickup and tone pot so I'm not sure how to link the neck pup to the bridge pup. I've searched for a Bartolini wiring diagram for about an hour online and not found anything.

Anyone have a link to a Bart wiring schematic?

The problem I'm having is that the neck pup is substantially louder than the bridge and the bridge almost sounds out of phase when it is by itself, i've adjusted height but still having the problem.

 

[luknfur]

I'm not getting the sound I would like from my PJ configured Bartos and I'm wondering if the wiring is amiss. The diagram that came with the bridge pup is a bit different from standard wiring and it only shows one pickup and tone pot so I'm not sure how to link the neck pup to the bridge pup. I've searched for a Bartolini wiring diagram for about an hour online and not found anything.

Anyone have a link to a Bart wiring schematic?

FWIW:

The problem I'm having is that the neck pup is substantially louder than the bridge and the bridge almost sounds out of phase when it is by itself, i've adjusted height but still having the problem.

You didn't say anything about a preamp so I assume this is passive. You can pretty much go to any site (Duncan, wherever) with two passive pups and your pot configuration and use that diagram. There may be a capacitor in it but that will change tone not function. The bart ground is the shield and the hot is the other wire.

If the pups are out of phase you can tell by adjusting the volumes the same, then increasing one or the other - and you'll hear an uneven volume change, maybe even drop though you're increasing volume on one pup. You just switch the ground and hot connections on one pup.

 

[Moo]

bridge almost sounds out of phase when it is by itself

That's possible if the bridge pickup is a humbucker, how many wires does it have? Or do any of the wires connect to more than a single pin on the bottom of the pickup?

Also you can expect the neck pickup to be roughly twice as far from the strings as the bridge pickup when balanced.

 

[David Wilson]

yup, what lunkfur said.

There's a P/J diagram at: http://www.seymourduncan.com/website/support/schematics/p-j_bass.html
You'll see it's the same wiring as the J diagram at:
http://www.seymourduncan.com/website/support/schematics/jazz_bass.html

Wire it that way, adjust as necessary if you have phase issues

 

[blipndub]

Thanks for your replies. yes, passive.

What threw me was the Bart diagram that came with the pickup showing a cap between the tone pot and the first vol pot in addition to the cap on the tone pot. I've never wired a cap between two pots like that and i wondered if there was something else that was funny.

 

[Techmonkey]

I have a Westfield PJ bass that I had a similar problem with. I got it from eBay for £70 as a starting bass that needed some fixing up, so with the help of a few friends I wired it up following that diagram. It seems to work fine, though the new amp I ordered hasn't arrived yet so I've been running it through the computer's preamp... All the tone pot seems to do is add hiss and not effect the tone at all, though. Is this a problem with the pickups? If it helps I used a .47uf capacitor. I have a 22k one, should I try it with that instead - Or is it the computer's preamp that's messing up?

 

[luknfur]

FWIW:

don't have a clue about the computer thing but would probably wait till I got the amp before making adjustments to tone.

Also don't know about the 22K capacitor as their values are typically in micorfarads, .05 being typical for bass with the larger the numeric value resulting in more bass tone (less treble bleed). Don't mess with capacitors much but the ones I've seen often have numbers/letters on them that mean nothing to me and sometimes they have no markings at all.

It's not unusual to have a capacitor placed between pups and, to my knowledge, they can basically be placed between any two connections - pot to jack, whatever.

There have been posts on capacitors so it would probably be of use to do a search.

 

[apehead]

I am having some difficulty getting rid of 60Hz hum in a Bart loaded Jazz bass. The Bart single coil p/u are only one wire and a shield, so I can't really wire them in "humbucking" mode as I have with two wire p/u in the past. Are they already wound/polarized to be humbucking when wired normally? Are the pickups internally shielded under the epoxy potting, or would they respond well to copper tape shielding under the p/u?