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 Post subject: switch wiring question
PostPosted: Sun Jan 13, 2008 12:30 am 
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I've been haunted by the idea of putting two pedals in one box (OD/OD) or (Dist/Dist). It's basically a "switching between" not cascading. I found a diagram at GGG:
http://www.generalguitargadgets.com/pdf ... wiring.pdf
Does this design do the cascading or switching between? If not how do I make it so?
Any help would make me sleep better. Thanks

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 7:10 am 
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If I understand you correctly you want a pedal that toggles between one OD or Distortion to another OD or distortion. If that is the case the diagram you posted is not what you want. That diagram is essentially the same as having two separate FX pedals but in a single enclosure with each circuit having it's own dedicated ON/OFF switch. What you want is an A/B switch like in the top half of this diagram. It toggles between the two different circuits. Output "A" would go to the input of one circuit and output "B" would go to the input of the other. The only difference is that you will need to do this with a 3PDT stomp switch. The third pole of the switch will need to have the output of each circuit connected to it to route your signal to your next FX pedal or amp. There's a chance that this will make a loud pop when you toggle between circuits so I would wire it up first and test it before I went and actually built this.
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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 8:22 am 
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Close! I think...
I actually do want to make a box with 2 pcb's inside (like the Proco Duecetone) but I don't want it to cascade, only switch between the two. The diagram from GGG is want I want but I need to figure out if when you stomp one switch (3dpt) the other will turn off. It's basically 2 different pedals within an A/B box.

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 8:39 am 
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Like I already said the GGG diagram gives each circuit it's own ON/OFF switch. Turning one ON will not turn the other OFF. To do that you need to use the top half of the diagram I posted above.

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 9:31 am 
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Sorry I'm still too new at this...maybe I should reword the question
I'm trying to find a diagram that uses 2 switches (one preempting the other). Since I'm an utter noob, I can't translate/read/visually understand the first part of the diagram posted compared to the ggg version (grounding, power, etc.). What might get around all of this is if someone could point me in the direction of resource that explains the lug assignments of 3dpt switches and how to use them in different combinations because the question I have after this one is even wierder! Thank for being patient.

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 10:15 am 
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I don't know why so many people have trouble figuring this out. I think it's because they over think the problem and make it more complicated than it actually is. All it is is simple ON or OFF switching between the switches poles and their throws. This is how you would wire a 3PDT stomp switch to do this.
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The three connections across the middle are the 3 poles of the switch. The connections above and below each pole are the throws. If the switch is set to short the first pole to the throw above it then ALL of the poles are connected to the throw above it. When you actuate the switch the connection switches from the pole to the throws below them.

If the input comes into lug 5 (center lug) and continuity is between the pole and the throw above it that means the signal will go out lug 4 and to circuit A's input. The signal will then come out of the circuit and enter the switch thru lug 1 (top left). And since continuity is between the poles and the throws above them the signal will go from lug 1 to lug 2 which is connected to the output jack. Stomp on the switch and the signal going into lug 5 will go to the lug below it which is connected to circuit B's input. The signal then leaves circuit "B" and re-enters the switch at lug 3 (bottom left). And since continuity is between the poles and the throws below them the signal exits the stomp switch thru lug 2 and goes to the output jack.

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 10:57 am 
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Thank you! This is what I should have asked for in the first place, It'll help with questions beyond just this one.

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 Post subject: Re: switch wiring question
PostPosted: Sun Jan 13, 2008 11:02 am 
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Don't forget that this may or may not cause a pop when you switch back and forth between circuits. I'd be willing to bet that it will pop.

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