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Post by helpingfriendly on Jun 14, 2023 18:43:08 GMT -5
I'll start off by saying for anyone who is curious about the Ulbrick NRS, I have had a very positive experience with it. I finally got myself a quality strat and coming from humbucker guitars my whole life I do love the tone of single coils but I hated the hum. I couldn't ignore it. I installed the NRS with a really good shielding job and my strat is now as dead quite as all my humbucker guitars. To my very picky ears I don't hear any degrade in tone before and after. Just wanted to mention all this incase someone clicks this thread in researching the whole dummy coil debate. I should say it's important to make sure the coil is matched to your existing pups in resistance to get the best results. Ok now that that's out if the way the real reason I'm here is I have a wiring question for the you experts on the forum. My SSS strat is currently wired pretty standard except for the common middle to bridge tone swap. I have the pups winded old school and NOT rwrp. I think the between settings sound better this way and since I have the NRS it kills the hum, and theres no need for rwrp hum canceling. The Ulbrick NRS is installed as they show in their diagram. What I'm looking to do to add more versatility is swap in a push pull tone pot to be able to toggle to series wiring when on the between middle & bridge position ( Like Brian May apparently). My question is how would I wire this while still incorporating the dummy coil. I'll attach both wiring diagrams below and if someone can tell me how to combine them that would be very helpful! Currently, the black wires all go to one side of dummy coil and out to th ground, but the series mod they have to go to the switch on the push pull. Should I go to the switch after the dummy coil or before and split the wires? I'm sure it's simple, I'm just not confident in my assumption lol. Thanks in advance
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Post by helpingfriendly on Jun 15, 2023 20:08:39 GMT -5
I'm going to bump this, Can someone PLEASE help 🙏
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Post by ashcatlt on Jun 15, 2023 20:33:45 GMT -5
Can’t say how well it’ll work, but I’m reasonably sure you will get the best results you can just by treating that dummy coil like the ultimate signal ground In whatever scheme you choose to wire up. I probably would keep all shield grounds actually connected to ground, though.
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Post by helpingfriendly on Jun 15, 2023 20:49:56 GMT -5
Can’t say how well it’ll work, but I’m reasonably sure you will get the best results you can just by treating that dummy coil like the ultimate signal ground In whatever scheme you choose to wire up. I probably would keep all shield grounds actually connected to ground, though. That's a really smart way to think about it and for me to understand. I will look at it that way when I take a wack at it. Hopefully someone else will add to this but if not this definitely helps me some. Thanks so much! |
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Post by Yogi B on Jun 16, 2023 7:04:29 GMT -5
Can’t say how well it’ll work, but I’m reasonably sure you will get the best results you can just by treating that dummy coil like the ultimate signal ground In whatever scheme you choose to wire up. If it's always going to be part of the signal, I'd put the dummy coil at the other, 'hot', end instead. That way we wouldn't have the junction of the three pickups grounds connected at some place other than ground (i.e. avoid having one/two pickups hanging from somewhere that isn't ground).
I know we're not supposed to leave any lug unsoldered around here, but the DiMarzio diagram wastes half of the switch achieving nothing (terminal 4 connects to either terminal 5 or terminal 6, and both of those options are connected together).
helpingfriendly, in addition to stevewf's recommendation of the Strat SP schemes, I'll point you towards another of JohnH's designs: the Strat SSM3. Which requires a regular Strat switch, instead of the super/mega switch as required by the former. If the blend control were ignored/removed it gives three series sounds, by default: bridge in series with middle, B × M; bridge and neck in parallel whilst both being in series with middle, (B + N) × M; and neck and middle in series, N × M. This is optimised for a RWRP middle coil, so in your situation I'd probably modify it such that the bridge was present in all three selections i.e. B × M, B × (M + N), B × N. In particular because (IIRC) after B × M, the B × N combination is probably Brian May's next most frequently used. (After that point we're probably into various out-of-phase combinations — and since two same-wound-same-polarity pickups combined out-of-phase are naturally hum-cancelling — the NRS would be doing more harm than good in these cases or incur more switching complexity to disconnect it, so it's probably a good idea to avoid these combinations). It's also pertinent to mention that: because the signals of pickups combined in series add (as opposed to standard parallel combinations where, roughly, the signals are averaged), two pickups combined in series produces twice the amount of hum as a lone pickup, or a parallel combination. So, as the NRS is designed/chosen to eliminate almost exactly as much hum is generated by only one coil, within series combinations (of two pickups) it'll only cancel about half of the hum. |
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Post by helpingfriendly on Jun 16, 2023 8:27:52 GMT -5
Can’t say how well it’ll work, but I’m reasonably sure you will get the best results you can just by treating that dummy coil like the ultimate signal ground In whatever scheme you choose to wire up. If it's always going to be part of the signal, I'd put the dummy coil at the other, 'hot', end instead. That way we wouldn't have the junction of the three pickups grounds connected at some place other than ground (i.e. avoid having one/two pickups hanging from somewhere that isn't ground).
I know we're not supposed to leave any lug unsoldered around here, but the DiMarzio diagram wastes half of the switch achieving nothing (terminal 4 connects to either terminal 5 or terminal 6, and both of those options are connected together).
helpingfriendly, in addition to stevewf's recommendation of the Strat SP schemes, I'll point you towards another of JohnH's designs: the Strat SSM3. Which requires a regular Strat switch, instead of the super/mega switch as required by the former. If the blend control were ignored/removed it gives three series sounds, by default: bridge in series with middle, B × M; bridge and neck in parallel whilst both being in series with middle, (B + N) × M; and neck and middle in series, N × M. This is optimised for a RWRP middle coil, so in your situation I'd probably modify it such that the bridge was present in all three selections i.e. B × M, B × (M + N), B × N. In particular because (IIRC) after B × M, the B × N combination is probably Brian May's next most frequently used. (After that point we're probably into various out-of-phase combinations — and since two same-wound-same-polarity pickups combined out-of-phase are naturally hum-cancelling — the NRS would be doing more harm than good in these cases or incur more switching complexity to disconnect it, so it's probably a good idea to avoid these combinations). It's also pertinent to mention that: because the signals of pickups combined in series add (as opposed to standard parallel combinations where, roughly, the signals are averaged), two pickups combined in series produces twice the amount of hum as a lone pickup, or a parallel combination. So, as the NRS is designed/chosen to eliminate almost exactly as much hum is generated by only one coil, within series combinations (of two pickups) it'll only cancel about half of the hum. Yogi, thanks so much for this info. I think I will definitely try to move the nrs to the hot side and try it both ways. I was also interested in getting neck and middle in series so thanks for pointing me to John's thread. I was just thinking, if I can get both series in between combinations along with the dummy coil working well, I wonder if there is a way to add resistance to the volume pot only when in series positions?. Currently have a 280k vol pot that works well for single coils and parallel between settings. But it would be nice to turn the volume pot into a 500k (or more) when in series because the 2 pickups pretty much become a humbucker at that point. What are your thoughts on this? Alot for me to think about anyway. I know alot of guys change their volume pots to 500k when series/parallel is installed, but I think the regular Strat tones will be too bright so it would be nice to get the best of both worlds somehow. I'll keep yall posted in my journey. I'm glad I found this forum, alot of smart people here for sure. |
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Post by stevewf on Jun 16, 2023 16:31:28 GMT -5
(After that point we're probably into various out-of-phase combinations — and since two same-wound-same-polarity pickups combined out-of-phase are naturally hum-cancelling — the NRS would be doing more harm than good in these cases or incur more switching complexity to disconnect it, so it's probably a good idea to avoid these combinations). Probably good to avoid, I agree. But if, in the end, you do go for more switching complexity, then: more than one NRS in the cavity, wired OoP with each other? |
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