Post by Yogi B on Oct 16, 2017 5:30:58 GMT -5
(... Or: How I Wish Triple Shot Rings Worked)
Firstly I'll apologise if this is in fact not a "different" take, I've searched for "binary phase" the results of which usually ultimately link back to Binary Tree Switching, and rightly so! Plus I've also looked at the Triple Shot threads, although it's sometimes difficult to know what's being discussed since the PhotoPhucket fiasco.
The closest I found was from the BTS thread:
I'd like it so that when one of the coils is set in single coil mode, it always comes up in reverse phase. With this, you could arrange for the bridge pup always to produce single coil hum of the opposite hand to that of the neck single coils, ie bridge would deliver, say, a North coil in normal phase of a south coil reverse phase, and neck would be vice-versa. This would give optimum hum cancelling and also humcancelling OoP combos. It would cut out non-humcancelling sc combos.
To do that, it would also be necessary to keep the in phase para combo on the pups. I could see it needing a 4PDT for each coil switch.I don't know if this was ever directly answered in the intervening 10 years -- I know the LP Maximiser had already essentially solved this, but that uses rotaries, not binary switching. Regardless I'm not answering it now either, as what I'm thinking of is a slightly different arrangement:
This can readily be achieved with Triple Shots or (more preferably, to avoid hanging coils) ChrisK's DPDT scheme for binary switching, by using a 4PDT to swap the coils and phasing simultaneously, i.e. to swap north finish with south start, and north start with south finish. However, what I'm proposing here is a way to achieving it utilising only DPDTs, for situations where 4PDTs aren't feasible. Or with the Triple Shots it might be the case that it's the cabling that's the limiting factor, as this style of phase switch needs to be 'between' the pickup and the Triple Shot, thus you'd end up with twice the cabling running between the pickup and the control cavity. Specifically the pickup's 4-conductor wire running to the control cavity and another 4-conductor wire running back to the Triple Shot (note that the pre-attached 2-conductor wire is unneeded in this situation and can be removed because it's just an extension of the "B" and "G" pads on the Triple Shot).
It's also probably worth mentioning, in case it's not obvious, using only DPDTs shunted and/or hanging coils are pretty much unavoidable, but it's no worse than the standard Triple Shot wiring. Thus it's also worth explicitly pointing out that in a 'typical' setup (four coils) only one subgroup would need to be wired in this fashion -- the other can be wired however is preferable to you. Anyway here's the schematic:
Firstly I'll apologise if this is in fact not a "different" take, I've searched for "binary phase" the results of which usually ultimately link back to Binary Tree Switching, and rightly so! Plus I've also looked at the Triple Shot threads, although it's sometimes difficult to know what's being discussed since the PhotoPhucket fiasco.
The closest I found was from the BTS thread:
To do that, it would also be necessary to keep the in phase para combo on the pups. I could see it needing a 4PDT for each coil switch.
Using two binary switched coil pairs (e.g. two humbuckers), where one coil from each subgroup has been selected such that it forms a hum-cancelling pair (e.g. bridge north and neck south), then the desire is that engaging a phase switch would also result in a hum-cancelling combination via selecting the other coil in one of the subgroups (preferably this would apply to the neck-most coils to minimise the change in tonality, i.e. in our example the resulting combination would be bridge north and neck north OoP). The local series and local parallel selections should remain unaffected.Although this concept isn't new, and is quite a common feature of wiring diagrams around here, I 'm not aware of any discussion applying it to binary switching. In comparison to John's suggestion, mine has the (subjective) advantages that:
- all the combinations of the binary switching are available, even the non-hum-cancelling ones;
- the OoP combinations are (still) gated behind a single switch, thus it's harder to end up OoP by accident;
- the resulting design is a simpler module only concerned with the switching of two coils, not four, because it requires no 'knowledge' about the switching of the other pickup(s).
This can readily be achieved with Triple Shots or (more preferably, to avoid hanging coils) ChrisK's DPDT scheme for binary switching, by using a 4PDT to swap the coils and phasing simultaneously, i.e. to swap north finish with south start, and north start with south finish. However, what I'm proposing here is a way to achieving it utilising only DPDTs, for situations where 4PDTs aren't feasible. Or with the Triple Shots it might be the case that it's the cabling that's the limiting factor, as this style of phase switch needs to be 'between' the pickup and the Triple Shot, thus you'd end up with twice the cabling running between the pickup and the control cavity. Specifically the pickup's 4-conductor wire running to the control cavity and another 4-conductor wire running back to the Triple Shot (note that the pre-attached 2-conductor wire is unneeded in this situation and can be removed because it's just an extension of the "B" and "G" pads on the Triple Shot).
It's also probably worth mentioning, in case it's not obvious, using only DPDTs shunted and/or hanging coils are pretty much unavoidable, but it's no worse than the standard Triple Shot wiring. Thus it's also worth explicitly pointing out that in a 'typical' setup (four coils) only one subgroup would need to be wired in this fashion -- the other can be wired however is preferable to you. Anyway here's the schematic:
And here's a diagram of potential use case with the phase switch being on the push-pull of a volume control (in Seymour Duncan Colours, since we've discussed Triple Shots), plus the truth table:
Schematic.png (79.81 KB)
A Different Take On Binary Switching.png (268.06 KB)
