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Post by JFrankParnell on Jul 5, 2010 13:21:36 GMT -5
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Post by ashcatlt on Jul 5, 2010 13:39:11 GMT -5
That should work fine. You don't actually have to use all three lugs, though.
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Post by sumgai on Jul 5, 2010 14:36:36 GMT -5
..... in fact, if you disconnect the output from the rest of the circuit while shorting it to ground, that could cause a clicking or popping sound as you press/release the switch. Not guaranteed to do so, but it could....
Passive or active, there's no harm to any of the components inside your axe if you ground the "hot" side of the jack. Doing it this way greatly reduces the likelihood of any popping sounds.
HTH
sumgai
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Post by JFrankParnell on Jul 5, 2010 20:14:14 GMT -5
ash, you mean i dont have to ground the momentary side? Just cut the circuit? lol, sumgai, I'm pretty sure you said the exact opposite in your two paragraphs!
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Post by chuck on Jul 5, 2010 20:58:18 GMT -5
these smart guys make my brain hurt ;D
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Post by sumgai on Jul 5, 2010 21:00:31 GMT -5
jfrank, ash, you mean i dont have to ground the momentary side? Just cut the circuit?
lol, sumgai, I'm pretty sure you said the exact opposite in your two paragraphs! Good thing you didn't bet any beers on that one. What ash and I are saying is that you don't "cut the circuit", instead you simply ground it - you make a short circuit. We're also saying that you can use a switch that has only two terminals, aka the SPST kind. But anything that has more poles or throws isn't bad here, so long as you like the feel of the switch, and what the hey, you already own it. ;D But the fact remains, you only need to ground the 'hot' side, no matter what's connected to it from inside the guitar. What it looks like to the amp is that the cable has suddenly shorted the input jack, and that's a no-harm, no-foul thing for the amp. In fact, it guarantees the amp will be quiet, no humming or buzzing or crap like that. The trick here is, as the amp's input transistions from fully grounded to connecting to the 'hot' side, there's a small amount of time when it's not connected to anything - it's open, and the cable is now a very long antenna. Even though it's a real short time to our ears, it could still be long enough to let the amp do something funny/weird like pop the speakers. Again, this isn't guaranteed to happen, only that it usually does, and sometimes it's so small you don't notice it, or at least it doesn't bother you (or the amp). But other times, you may be at a friend's house, a rehearsal space, or in a club.... and whammo! you're outed as a noise freak! Bad ju-ju. Particularly when it can be avoided right at the start of things. HTH sumgai
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Post by JFrankParnell on Jul 5, 2010 22:34:37 GMT -5
OIC, I dont have to hook the Hot from Vol to the switch at all, just use 2 terminals to ground the jack hot wire, right. whammo! you're outed as a noise freak! Bad ju-ju. Particularly when it can be avoided right at the start of things. Ok, I'll bite, how can it be avoided?
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Post by ashcatlt on Jul 6, 2010 1:07:44 GMT -5
I was gonna have you connect the "From Volume" wire to the same (middle) lug as the "To Output" wire, but your way works too.
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Post by sumgai on Jul 6, 2010 4:51:46 GMT -5
jfrank, As ash just noted, it doesn't matter where you physically hook the wire in your circuit, so long as the end result is that the hot terminal of the jack is grounded (shorted to the ground terminal). This is usually easiest to accomplish near the volume control and your other switches - running one or two extra wires out to the output jack area is sometimes a PITA. And this is how you avoid any kind of clicks, pops, or other noises that might occur when your circuit is switching from fully on to fully off. By "start of things", I meant "while you're in there now, doing your wiring mods". Look, what all this boils down to is what we call Best Practices. Most of these come from hard experience, suffered by many players, not just us here in The NutzHouse. Sure, sometimes you can get away with a "not-Best Practice", but those times are few and far between. Even so, it all comes down to what works for you. Well enough is, well..... well enough. If you've already done the deed and buttoned everything up, go ahead and try it. If you don't hear anything wrong when you push/release the switch, then you're OK - and I was being overly cautious. But if you're still in mad-scientist mode, then do what we're "suggesting"*, and know that you won't have any issues afterwards..... IOW, you can sleep better at night. HTH sumgai * I hope you take all this as suggestions, and not infer that we are 'commanding' you to do or not do anything. There's a rule-of-thumb here in the NutzHouse that determines the tone of our responses. In short, if someone wants to do something that we know is safe to them and their equipment, then we'll adopt a suggestive tone. But if they're contemplating something we know to be unsafe, that's when we trot out the jack-boots and horse-whips, and start commanding. I hope the difference is obvious.
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Post by JFrankParnell on Jul 6, 2010 11:23:30 GMT -5
Oh, absolutely, I tend to think things over in my head, research, prototype, and ask questions from here in my office before even heading out the workbench. Sometimes i get excited and buy stuff before that whole process is done, though Your tone is fine, i take no umbrage So, I see now that the main function of the kill switch is to short out the jack, completing the circuit from the amp. Not, as I originally assumed, to simply cut the hot wire from the pups/volume. The idea of killing something by grounding it out instead of simply cutting a wire is coming to me slowly, as you wouldnt want to do that in house wiring, which I'm a little more familiar with!!!
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Post by chuck on Jul 6, 2010 15:51:50 GMT -5
so , the guitar kill switch is like the kill switch on a lawn mower engine ?
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Post by JFrankParnell on Jul 6, 2010 16:10:59 GMT -5
hey, you're right, Chuck
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Post by D2o on Jul 6, 2010 16:13:26 GMT -5
Now there’s an analogy!
I don’t know … but if it is, tell this guy about it, will ya?
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Post by chuck on Jul 6, 2010 16:49:06 GMT -5
jfrank .... do not use THAT kind of kill switch on your guitar !
... not if you plan on playing it again
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Post by cynical1 on Jul 8, 2010 7:50:45 GMT -5
Wasn't that the Retro Jimi Hendrix killswitch?
HTC1
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Post by chuck on Jul 8, 2010 9:31:19 GMT -5
.... brilliant observation o Cynical one
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