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Post subject: Dummy Coil
Posted: Thu Oct 28, 2010 6:07 pm
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Does anybody know how to wire one to a Standard Strat? There's tons of talk on the 'net about them, but no one is ever kind enough to explain how to do it. I know you have to remove the magnets from a rwrp pickup, at least that's what I've gathered from what I've read, so please correct me if I'm wrong, but I've not seen where someone has explained where the pickup wires are soldered. And I'm aware of the Powerhouse, but if you look at that switch it's wired very differently because of the mid boost that's on there. I also would like to know if anyone knows whether the middle pickup off of a MIM '07 would be sufficient to remove the mags from and use as a dummy coil for a set of CS 69's. Thanks in advance!


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Posted: Thu Oct 28, 2010 7:55 pm
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The whole reverse polarity thing changes from guitar to guitar. You could get pickups magnetized NSN or SNS.
You have to check the polarity for yourself.

Also don't use a dummycoil with a RWRP middle pickup keep em all the same. Doing so means you will get noise in 3 positions, wherever the middle pickup comes into play.
A take the hot wire from the dummy to the switch out tag (that goes from the switch to the volume pot 3rd lug usually). wire the hot lead of the dummy coil to that lug on the switch. Wire the ground lead of the dummy to the 3rd lug of the volume pot the lug the switch used to go to. That way the switch and every pickup work off with one dummy coil.

Atleast thats it to the best of my memory. Suhr apparently has a way of witing it all on the ground side to avoid it altering the sound of the pickups.

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Posted: Fri Oct 29, 2010 6:31 am
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Thanks for explaining the wiring! I knew it had to be simple based on the fact that there are only two wires on a pickup, and I'd suspected it may be just what you've described, because it would then effect all three pickups, but I couldn't find anything anywhere that would confirm it!

I do have one more question after reading the response though....

You mentioned that my existing pickups could be NSN, or SNS, as well as the pickup I'm intending to use as the dummy could be either. But in my mind, if I'm removing the magnets, the dummy would just need to be reverse wound, right? Because it would then have no polarity? And CS 69's don't have a rwrp middle pickup, so any pickup that was reverse wound should be sufficient, right? Thanks in advance once again for any responses!


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Posted: Fri Oct 29, 2010 6:53 am
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Yeah absolutely correct. If all your pickups are same wind direction, you'll be ok.
It just seemed easier lastnight to describe it as polarity as the sets with a RWRP middle pickup, the easiest way to check the wind direction is by seeing which way the magnet is facing. The two factors go hand in hand. You need all the winds and therefore magnet direction to be the same. Then wire the dummy coil as the reverse of that. So you get the humbucking aspect without changing the sound that much.
If you don't get hum cancelling just swap the wires on the dummyload round.

Bit rusty on this since the advent of noiseless pickups. Bare with a old croaker eh?

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Posted: Fri Oct 29, 2010 7:41 am
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Hahaha, well, none of us are gettin' any younger, unfortunately! But I'm glad I caught your attention with the question, because I've lurked around these forums enough to know you have a reputation for being very knowledgeable, so thanks again for the input! And I guess I'd failed to take into consideration what it was that I think you were trying to point out, which was that it may be rwrp to the set it came with, but that may make it the same wind direction and polarity as the set I have installed. But sounds like I can just switch the wires and be set, so I think I'm good now! Got some shielding paint too, so hopefully I can get her quieted down a bit. You happen to know if I need to sand the cavities before I shield them? I know it was probably coated with shielding paint prior to my getting in there and routing and whatnot, but there are several areas of bare wood where I've had to make room under there for other components, so I wanted to just repaint the whole cavity. Just didn't know if I should paint over what's there or not. Again, thanks in advance!


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Posted: Fri Oct 29, 2010 8:10 am
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Never painted a cavity before. I suppose it can't do any harm to give it a light rub, just be carefull not to mark the body.
The times I have shielded guitar bodies I used 'Slug Tape'. Copper tape sold at garden centers. You put a band of it round a flower pot and the slugs don't crawl up past it. You can even solder the stuff, though I never had the need to. It conducts perfectly well.

The main benefit I saw with that is that if you don't like it (it does change your sound a little) you can just rip it out. Also theres no drying time, but I supose it takes longer to do.

You really need Martian on this. I'm not knowledgable at all. Anything I learnt was on a trial and error basis.

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Posted: Fri Oct 29, 2010 8:30 am
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nikininja wrote:
You really need Martian on this. I'm not knowledgable at all. Anything I learnt was on a trial and error basis.


Says the guy who just answered my questions and gave me some really cool new advice! :lol:

Thanks again for all your help, and I'll definitely consider the tape, especially if the combination of the coil & paint don't get me the results I'm after (already bought the paint, so might as well give it a go)!


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