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The Pickup Place / Re: 2 humbuckers, 3-way toggle switch, 1 volume and 1 tone (both push/pull)
« on: October 20, 2017, 11:12:15 AM »Apologies if I’m stating the obvious, here:
First off, the treble bleed mod won’t interfere with any of the switching options - It’s just a capacitor and resistor on the ground lug of your volume pot. Coil splitting both pickups can be done with a single DPDT switch. For series/parallel switching, each pickup will require its own DPDT switch. In this case, two push-pulls limits you to the following switching options:
- One switch for coil splitting both pickups, one switch for phase reversal.
- One switch for bridge series/parallel, one switch for neck series/parallel.
You can also do series/parallel switching for, say, just the neck pup, and use the other switch for phase or splitting both.
In case you’re unfamiliar with the sounds of a humbucker’s coils in parallel vs splitting to one of the coils: You generally expect a split humbucker to have half the output. A humbucker with its coils in parallel will sound closer to its split sound than its series sound, but still humcancelling.
Personally, I’ve owned guitars with separate splitting and parallel options, and found the sounds to be redundant. I recommend choosing one or the other, based on whether you prefer all switching options be humcancelling, or want the “legit” single coil hum that comes with splitting.
If you prefer the idea of humcancelling parallel, I recommend using each pot for series/parallel switching, plus a DPDT mini-toggle for phase switching. If you want the authenticity of the 60-cycle hum, then you can use the two-pot option I mentioned above.
Dimarzio has schematics for all of these options on their pickup pages.
marcwormjim first of all thank you for your quick and detailed answer. if I understood correctly first option is to do serial/parallel (both push/pull pots in function) and second is to do standard serial wiring (beside parallel which you find unusable with coil split on) with coil split (e.g. volume push/pull) and faze reversal option (e.g. tone push/pull).
Here's resume:
1st option:
Plus: canceling hum in both cases
Minus: 2 characteristics of sound (if we ignore the option of combining parallel/serial)
2nd option:
Plus: 3 characteristics of sound
Minus: hum that comes with coil splitting
If humbucker with its coils in parallel sounds similar to splitted coil in series, but still humcancelling, maybe that is a better option to do since I'm not a fan of hum. Is it loss of volume in parallel mod similar to coil split volume loss? Which one is more noticeable?
Okay, let's assume I've decided for the first serial/parallel option, my next question is which extra switch do I need to add at guitar body to add phase mod?