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Post by chezvoz on Sept 9, 2015 16:47:26 GMT -6
Thanks for the offer Hoz, but It was just that narrow bridge route that needed a small Japanese neck plate. Here's my real problem. Something that seems to plague me every time: I got HUM. Below is a photo of my very simple circuit. It's a 3 wire pup – on googling it, I may have found the answer: The white is the signal, the bare wire is ground and the red would be for a coil tap. So to get the hum out, I need to unground the red wire and insulate it. Please confirm if you know! Thanks.
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Post by Deleted on Sept 9, 2015 19:44:32 GMT -6
Have you tried flipping the red and the white wire? Put the white on ground and the red one for pos. sometimes (for what ever reason) it might be backwards to what you found on the net. I had one one just a few weeks ago... 4 wire humbucker... SD says to put the white and red wire together and not ground it. But when I did I only got one of the coils to work and I had a bad hum... So just because.... I grounded the red and white and all was good... I wonder in your case if you soldered the red and white together on pos. what would that do. My thinking is on a humbcker if one wire is for splitting and you leave one or the other off, then you will get the same thing I had... Only one coil working.
Bet John could heal a lot in this... EB
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Post by dnic on Sept 9, 2015 21:05:39 GMT -6
I think the red wire is the ground end of the coil, the white wire is the hot and the braid is the plate ground. May be that the hot and ground wires are reversed at the jack, make sure the tip is going to the lug on the pot. Only other thing is if the bridge ground is not making good contact but that's another kind of hum.
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Post by hoz on Sept 9, 2015 22:29:24 GMT -6
I've wired up a few 3 wire pickups. I agree with Dane, the braided is the plate ground, the white should be the lead hot wire. I usually just braid the ground [red] wire with the plate ground. I think the plate ground is kinda optional.
That should clear up the hum, I hope.
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Post by chezvoz on Sept 9, 2015 22:56:34 GMT -6
Hmmm, I had the plate ground and the red both grounded to the pot case. One forum said to take the red off ground and just tape over the red wire.
There aren't that many combinations with this lean set-up, so I can try them all if necessary – tomorrow.
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Post by dnic on Sept 10, 2015 0:34:01 GMT -6
You could certainly try that but there are two ends of the coil and I've never seen the bare wire be any thing but a shield or plate ground..
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Post by Deleted on Sept 10, 2015 9:53:50 GMT -6
Was going to say something about the input jack. But the picture looks like it's right. But you know how pictures are. It's the 3 wire thing on the pickup that has me. I never wired up a 3 wire pickup. But I know one is hot and two should be ground. I just have this feeling if you leave off on wire then you will only get one side of the pickup that will work. In other words it will be a single coil pickup. The other thing to think about, you might have a bad pickup. I have run across that a few times, after chasing it for days. I always wind up changing the pick out as a last resort, but the odd thing is when I do that no more buzzing of a bad ground.
I have also found brakes in the wire or wires. That will run you nuts trying to find. Other things that I find that cause a sound like a bad ground... Bad guitar cable... Lights... being too close to the amp... Messed up connection on the amp. A bad input jack on the guitar.( Just because they are new does not mean that they are good)So there are all kinds of things that can cause that sound. But a lot of times it's the most obvious. EB
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Post by Deleted on Sept 10, 2015 9:59:08 GMT -6
OK here is another thought.... Looking at the picture... You have a metal pick guard... Right??? By the way it looks your bridge sits on the pick guard??? If it does then I see no need of the ground wire for the bridge... You might be fighting a ground loop. so if the bridge is on the pick guard I would remove the bridge ground wire. Can't hurt to try. EB
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Post by chezvoz on Sept 12, 2015 18:09:22 GMT -6
Got it working. THis is the best photo I can do right now. More later. Here's the back. Kinda nice piece of wood, no? ALso, I think I'm having some signal bleed cause the output is very low for an HB pup.
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Post by Deleted on Sept 12, 2015 19:11:46 GMT -6
So what was the problem with the wiring? EB
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The Shark
Sept 12, 2015 20:50:37 GMT -6
via mobile
Post by latestrummer on Sept 12, 2015 20:50:37 GMT -6
Cool looking guitar !
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Post by dnic on Sept 13, 2015 7:09:56 GMT -6
Looking good, gotta love that mahogany.
Low output could be running on half a coil after all.
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Post by hoz on Sept 13, 2015 10:01:13 GMT -6
You may have posted this earlier, but did you get an ohm reading off the pickup leads in question?
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Post by chezvoz on Sept 13, 2015 17:53:19 GMT -6
Hoz, I did not get a reading off of the pup. I have a new meter, still in the package. I'll get to that. In the meantime, a better photo:
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Post by GuitarAttack Forum on Sept 22, 2015 5:35:56 GMT -6
By the way - I've been rewinding a lot of vintage 60s pickups lately. Let me know if you need some help with it.
John
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