Kill switch wiring question

victorludorumvictorludorum Frets: 324
I've been looking for a clear answer to this on the web, but have just ended up confusing myself because of the wide range of possibilities.

I'm wiring a pickup straight to the output jack via a CK dpdt switch. Can someone please tell me how this should be wired as I'm not having any joy making it work on my own? Cheers :-)
0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter

Comments

  • CasperCasterCasperCaster Frets: 279
    edited July 7
    So single pickup, with the DPDT switch as a kill switch?
    I'd wire hot and earth directly to the output jack, then take a wire from each side of the output jack to the switch, such that the switch connects hot to earth to short out the pickup when engaged (i.e. treat the DPDT switch as a simple make/break SPST switch.) 
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • CasperCasterCasperCaster Frets: 279
    edited July 7
    Also, as you have redundancy in the switch, you could wire across both poles in parallel to provide more reliability. 
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Here's a link to another thread that I started that explains more fully what I'm trying to achieve:




    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • CasperCasterCasperCaster Frets: 279
    That looks rather complicated, and I don't think what I've suggested is suitable. A kill switch is usually a master, but temporary mute used for staccato effects, and is most easily wired as I have described. But what you want to do looks like a whole other world of pain! 
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Well all that I'm trying to do is to have a pickup that will run without the battery power, so I'm hoping that this will do the trick. When I have the battery running and I'm using the blender I want to switch this pickup out of the system. If the battery dies on me, then I can switch this one in and run it passively.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    edited July 7
    What you're describing is a blower switch, not a kill switch.



    As I always have to say, make the green wire an 'x' between the lower four terminals rather than a 'u' between the bottom two for better reliability.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    edited July 7
    This is a second pickup that's separate from the normal pickup. The normal pickup is wired into the blender system, but this a second one which will bypass the blend system entirely. It's a Lace Dually, so there are separate wires for each pickup.

    Sorry if I'm confusing things! :-(
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    This is a second pickup that's separate from the normal pickup. The normal pickup is wired into the blender system, but this a second one which will bypass the blend system entirely. It's a Lace Dually, so there are separate wires for each pickup.

    Sorry if I'm confusing things! :-(
    In that case it's even easier - all you need is a single pole switch which selects either the normal electronics, or the backup pickup, with the middle terminal going to the jack.

    If you have a DPDT, just wire both poles in parallel since that will also improve reliability.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    So how would I go about doing that then? ;-) If we call the 3 poles 1, 2, 3 and A, B, C, what wire goes where, as what I have tried isn't working?
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    When the switch is in one position, I have connectivity between 1 and 2, and A and B, when it is the other, it's 2 and 3, and B and C, but I'm sure that you know this already :-)
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    So how would I go about doing that then? ;-) If we call the 3 poles 1, 2, 3 and A, B, C, what wire goes where, as what I have tried isn't working?
    1 4
    2 5
    3 6

    1 and 4 to standard electrics
    2 and 5 to jack
    3 and 6 to backup pickup

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    I still think we're talking about 2 different ideas. Is it not possible to wire this one so that it has no connection to the other circuit?
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    I still think we're talking about 2 different ideas. Is it not possible to wire this one so that it has no connection to the other circuit?
    That's exactly what I've shown you.

    I give up!

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    I guess what I meant was 'without having to connect the blender circuit to the toggle switch'. I can wire it as you have explained, but I was trying to imagine that the second pickup and toggle switch would be unconnected to the other circuitry. Maybe I'm just making it unnecessarily difficult when I thought I was making it easier :-(
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    I guess what I meant was 'without having to connect the blender circuit to the toggle switch'. I can wire it as you have explained, but I was trying to imagine that the second pickup and toggle switch would be unconnected to the other circuitry.
    So how would the normal blender circuitry get to the jack? You can't leave it permanently connected or it will mute the backup pickup.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    If there's no battery power, then the blender circuit would be dead, wouldn't it? As I say, I was just trying to imagine the easiest system, but my knowledge of electronics is basic.

    If the 2nd pickup was wired directly to the jack and bypassed the blender, would both circuits have output if the blender circuit is connected with battery power? From what you've just said above, I guess that it won't.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    No, because the output impedance of the blender circuit will be very low so it will mute the output of the backup pickup. You need to switch between them - but that's easy.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Great, that explains it, thanks :-) Does it matter what side of the switch lugs is used for ground?
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    edited July 7
    Great, that explains it, thanks :-) Does it matter what side of the switch lugs is used for ground?
    None of the switch lugs go to ground.

    OK, maybe you're misunderstanding. You don't need to switch the ground connections at all, they all remain connected all the time. The only switching you need is on the hot connections to the jack, backup pickup and output of the standard electrics.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Ah, in that case I'm lost again! For example, the backup pickup has a live and ground wire. I presumed that one would go to 3 and the other to 6, and that the others would be wired similarly.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    Ah, in that case I'm lost again! For example, the backup pickup has a live and ground wire. I presumed that one would go to 3 and the other to 6, and that the others would be wired similarly.
    No!!!

    Please just read what I said again.

    All the grounds are connected all the time.

    Connect terminals 1 and 4 to the hot output of the standard electrics.
    Connect terminals 2 and 5 to the hot connection on the jack.
    Connect terminals 3 and 6 to the hot connection on the backup pickup.

    That is all!!

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Many thanks for the explanation, and sorry for ruining your Sunday.

    Cheers also to @CasperCaster, I appreciate it ;-)
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Well I re-wired it today, and although it's working, it's not working as I would like it to. I was worried about the stereo output jack causing some problems, and it has. For a start it's a POS cheapo thing with the tiniest lug holes to pass wire through, so that's been tricky. but apart from that, the 4 wires going into it are confusing things for me. I have a spare board for this guitar, and the 4 output wires that go to the output jack are marked T (red), R (white), SW (yellow), and SL (black). Does anyone have any idea what those letters might signify? After doing a bit of testing, I took the white wire as the one I wanted, but it ain't right. The second pickup does not work when the battery is out.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    I think I have it: Tip, Ring, Switch, Sleeve, not that that helps me much!
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617
    It's T that needs to go to the switch if that's the tip.

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • victorludorumvictorludorum Frets: 324
    Ok, it's done! :-) Thanks as always @ICBM This has made what i think is a good, useful gigging guitar into a better one.
    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
  • ICBMICBM Frets: 39617

    "Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski

    "Just because I don't care, doesn't mean I don't understand." - Homer Simpson

    0reaction image LOL 0reaction image Wow! 0reaction image Wisdom · Share on Facebook Share on Twitter
Sign In or Register to comment.