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Post by Ro_S on Dec 13, 2015 20:28:10 GMT -5
I have several guitar mod projects ongoing at present. My most complicated one, wiring wise, shall be my Jagmaster project.
The Jagmaster guitar will have completely new electronics and pickups.
I've already made alterations to the cavity routing, and acquired various parts including the new pickups. The pair of humbuckers I won as a prize. Here is a mock-up:
The pickup allocation will be as follows:A few things that I've decided I definitely want to incorporate are as follows:- 'spin-a-split' on the bridge humbucker pickup, so that it can go from coil split (7.5k DC resistance) to a variable output humbucker (up to 15k DC resistance). - the two lipstick pickups can be used either individually as well as selected in series as a faux dual coil pickup (so the guitar can essentially be regarded as a H-H-H configuration). - I also want to be able to exploit individual lipsticks pickups by being able to combine them in series with coil split bridge/neck humbuckers, effectively creating two other, unusual types of dual humbuckers. (i.e. one coil from a humbucker; one coil from a lipstick). - passive dual tone controls (treble cut and bass cut), at least affecting the two humbucker pickups, or possibly as master tone controls. (Note: I'm conscious that the bright lipstick pickups normally have a volume pot value of 100k in Danelectro guitars.) - a momentary kill switch. Okay, now, this is where I need help....
I want to be able to get all the following pickup switching configuration permutations: Notes:
green = active white = inactive
Unless stated otherwise, the pickups active in each permutation graphic are combined in parallel. ** So, I'm seeking advice, please, on how I should wire the switching and circuit for this project in order to (best) achieve the above. **thanks!! Note: I do not want to use a superswitch or a S1 switch. However, I am happy to use a 4T5P rotary position switch (I have a couple of spare ones).
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Post by newey on Dec 14, 2015 0:31:01 GMT -5
Ro_S:
You don't want much, do you? Geez, 6 coils, 21 permutations . . .Where do we start?
First off, when you said:
I am assuming that the neck HB and the Bridge HB coils will be combined in series, i.e., std HB wiring?
Just off the top of my head, without having the time at the moment to work out the switching of this beast, I'm thinking that one of those 5T rotaries would be used to control the two middle lipstick coils, giving them each individually, or together in series, or in series with both bridge and neck coil splits. But, you would need one position of the switch to bypass the middle pups so that they could be turned off, so we're already beyond 5 things we would be asking this switch to select between.
Another 5 position rotary could perform the switching on the 2 HBs, I suppose. Lots to work out in something like this. Are we looking to use slide switches as on a Jaguar?
Seems to me that, if the selection of switches is not dictated by the holes currently in the guitar, the most logical way to set this up is to think of the 6 coils each being switched individually either on, off, or in series with the coil next to it. Not sure what switching you'd need there, though, I'm sort of thinking it's be similar to JohnH's Brian May series/parallel scheme, but doubled for 6 coils and without the phase switching. Like maybe this is 6 mini-toggles plus a 4P switch?
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Post by Ro_S on Dec 14, 2015 7:30:15 GMT -5
re: last diagram....
newey6 wrote:
Yes, that is correct. I was referring to the combination of pickups being in parallel - unless stated otherwise. Yes, the coils of the humbuckers will be wired in series.
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Post by Ro_S on Dec 14, 2015 7:39:02 GMT -5
newey6 wrote:
No, I'm not. The scratchplate I'm using is a (modified) Jagmaster one. The only slide switch I definitely want to incorporate is the one on the upper horn. I have a two-way slide switch that I bought explicitly for this purpose. I also bought a second one; this can be used in the project too if it helps. I'm open minded and flexible about what type of switches to use (except no superswitch or S1 switch).
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Post by JohnH on Dec 14, 2015 18:07:29 GMT -5
I think tbat before working out the engineering of the wiring, some ergonomics need to be worked out in terms of what knobs there will be and what specificalIly they will do. This can be based on looking for patterns i the collection of desired combos.
For one possibility, you could have:
Master tone (T and B) and volume.
One rotary controls the M pickups: M1, M2, bothM in series(para with NB), bothM in series(series with NB), off
One rotary controls N and B: N, B, N and B parallel, N and B series oop, off
Bridge spin a split Neck coil cut
That should do at least most of it!
But you might think of it in a different way in terms of how you would like it to operate.
EDIT But what you might want instead, is to have a simple Gibson toggle for B B+N N, instead if a rotary switch. Then get a seperate 3 position switch to do BN on, BN phase and BN off
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Post by newey on Dec 14, 2015 22:54:40 GMT -5
JohnH said:
This approach is quite similar to what I was suggesting, although I was not sure that you could do the "both mids in series" setting in conjunction with putting a Mid in series with N or Br. But if John says it's workable, I'd suspect that it indeed is. . .
JohnH:
Can this be wired in such a way that we have the mid coils split, each in series with the one next to it, when the HB splits are in use? And, when the HB coils aren't being split, we get the two mid coils in series? That was the part I was having trouble visualizing.
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Post by Ro_S on Dec 16, 2015 12:32:37 GMT -5
Can this be wired in such a way that we have the mid coils split, each in series with the one next to it, when the HB splits are in use? And, when the HB coils aren't being split, we get the two mid coils in series? That was the part I was having trouble visualizing. me too!
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Post by Ro_S on Dec 16, 2015 12:52:44 GMT -5
I think tbat before working out the engineering of the wiring, some ergonomics need to be worked out in terms of what knobs there will be and what specificalIly they will do. This can be based on looking for patterns i the collection of desired combos. For one possibility, you could have: Master tone (T and B) and volume. One rotary controls the M pickups: M1, M2, bothM in series(para with NB), bothM in series(series with NB), off One rotary controls N and B: N, B, N and B parallel, N and B series oop, off Bridge spin a split Neck coil cut That should do at least most of it! But you might think of it in a different way in terms of how you would like it to operate. EDIT But what you might want instead, is to have a simple Gibson toggle for B B+N N, instead if a rotary switch. Then get a seperate 3 position switch to do BN on, BN phase and BN off I ordinarily favour global volume and global tone tone controls on a guitar, BUT in this case I had been wondering whether it would be better to have independent vol/tone controls for (i) the B & N humbuckers and (ii) the middle lipsticks. This is because it occurred to me that maybe that would help when using those different types of pickups together, to assist in getting a better blend? I dunno. In addition, Danelectro lipstick pickups usually have 100k vol pots and I struggle to see how that would be compatible with the 500k vol pot typically used with humbuckers? I would add, however, that I would , ideally, like to have a master volume control (situated below the bridge pickup) on this guitar as I want to be able to do volume swells. In respect of the switching between the B & N humbucker pickups, I am not averse to either a Gibson style 3-way switch or a rotary switch. I would stress that is more important to me that I can combine the lipstick pickups together with the coil split B & N humbuckers to create new dual coil pickup combinations, than it is to get B & N humbuckers combined in series (whether in or out of phase). You proposed above, " One rotary controls the M pickups: M1, M2, bothM in series(para with NB), bothM in series(series with NB), off" . That seems fine. I was wondering if it's best - if technically possible - to have a master configuration switch to select permutations between (i) a B & N humbuckers circuit and (ii) a middle lipsticks circuit? E.g. humbucker circuit only; lipstick circuit only; both circuits in parallel; both circuits in series; and lipstick pickup combined with split coil humbucker. Just a thought. The quicker/easier it is to select between switching combinations, the better. thanks
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Post by newey on Dec 16, 2015 22:42:56 GMT -5
This is what we have called a "mode switch" in the past. For example, someone posted a HSH (years ago) with a mode switch to go from an LP (HH) configuration to a Strat (SSS) configuration. But in this case, I think you're overthinking this.
What John is proposing would essentially do just this, but without an extra switch. The middle pups are controlled by a rotary, with one position bypassing the mid coils and "handing off" the switching to another rotary, which then gives you the HH settings. So, with the mid switch set to bypass, you're in "HH mode", and with the mid switch not on bypass, you're in "Mid mode". While in "mid mode", the HH rotary can also be switched off, leaving the mid coils alone on their rotary.
Now, of course, we have to work out whether this can actually be done in this fashion.
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