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A momentary single-pole dual throw switch will do the job. Using an IC will create more problems with noise, plus you need a battery for the chip. toby ----- Original Message ----- From: "mark francombe" <mark@markfrancombe.com> To: <Loopers-Delight@loopers-delight.com> Sent: Sunday, April 19, 2009 11:26 AM Subject: Re: Kill switch for el guitar - design ideas? > There are alot of ways to do this better... and a few extra options... > One thing I have seen the guitarist fomr Melt Banana do is have a kill > switch, where instead of switching to silence, he switched to a > minidisc... on which he had all kinds of noise. Wanna regular > killswitch? turn off the minidisk /iPod or whatever... whatabout a > killswitch loop, so you run the "off" position thru a cheap old pitch > shift pedal or octave pedal... > > Thats options.. but the other issue is the curcuit.. first the best > method would have to be a touch pad. Now if you used a simple IC as > the audio switch, you would eliminate the likelyhood of a click as you > switch, plus the actual switching method could just be you grounding > the circuit... i think... Im sure I could figure out a possible > circuit, Plus it could be switchable as far as touch on cut or touch > off cut. Most guitarists seem to have gotten used to this push off for > cut, but as Per says, that seems weird. The classic old Les Paul > (pickup volume down) method, worked fine, cos its was a toggle switch, > but a button... well Id have to try it... > > Mark > > On Sun, Apr 19, 2009 at 5:50 PM, Jeff Duke <jeff_d@embarqmail.com> wrote: >> http://hallco.thomasnet.com/category/big-switch? >> >> j >> >> >> ----- Original Message ----- From: "Per Boysen" <perboysen@gmail.com> >> To: <Loopers-Delight@loopers-delight.com> >> Sent: Sunday, April 19, 2009 11:41 AM >> Subject: Re: Kill switch for el guitar - design ideas? >> >> >>>> Scott Middelton of Cancer Bats has a kill switch in his custom built >>>> guitar, seen as picture 3 here: http://is.gd/thSM. But that solution >>>> is sort of functionality-wise upside down as I see it. It kills the >>>> audio when pressed - >> >> On Sun, Apr 19, 2009 at 5:20 PM, Bob Amstadt <bob@amstadt.com> wrote: >> >>> Undoubtedly he uses a normally open switch. All you need to do is used >a >>> normally closed switch in the same circuit that he uses. >> >> Ahh... so there are special "normally closed" switches! That I didn't >> know. But I would still need to add four more switches (since only one >> finger tip fits on that switch) and add a special "enable/disable >> switch circuit" switch (since its default mode is to shut off audio). >> >> I'm looking for a controller that meets these three criteria: >> 1) big enough for finger drumming with five finger tips. >> 2) defalut mode of switch has to be to silence the signal. >> 3) the shall let through audio for exactly the time being touched. >> >> Per >> >> >> > > > > -- > www.markfrancombe.com > http://vimeo.com/user825094 > http://uk.youtube.com/user/markfrancombe > http://www.myspace.com/markfrancombe > http://www.looop.no/shop/catlabel.php?q=Synch%20Non%20Synch >