Help with switching please?

Started by Loud and Low, November 09, 2011, 10:08:01 AM

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Loud and Low

I want to try to put two effects in one enclosure.
Two fuzz pedals.
I'd want to keep a stomp switch for each fuzz, plus a master on off switch for both.

Is this doable?

Can someone help with that?

THANKS!
T.V dinners by the pool. I'm so glad I finished school.

alparent

And what about the outputs?

You want the first effect to feed into the second internally? Or just a in/out for both effects and you arange the order with cables like you would de with 2 seperate effects?

Loud and Low

Thanks for the answer.
I would like one input and one output.
The first effect to feed into the second effect internally.
T.V dinners by the pool. I'm so glad I finished school.

R.G.

1. Test the two pedal circuits independently, including all bypassing functions and input/output jacks. Make sure they work properly when the output jack of the first in line feeds the input jack of the second in line through a guitar cord. When this works fine,
2. Take a pair of diagonal wire cutters and cut off the output jack of the first pedal, and the input jack of the second pedal.
3. Strip and solder the two cut-off jack grounds together; then strip and solder the two signal wires together. Insulate them so they don't short.
4. Put it in the box.
5. Enjoy.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

alparent

Quote from: R.G. on November 09, 2011, 10:37:52 AM
1. Test the two pedal circuits independently, including all bypassing functions and input/output jacks. Make sure they work properly when the output jack of the first in line feeds the input jack of the second in line through a guitar cord. When this works fine,
2. Take a pair of diagonal wire cutters and cut off the output jack of the first pedal, and the input jack of the second pedal.
3. Strip and solder the two cut-off jack grounds together; then strip and solder the two signal wires together. Insulate them so they don't short.
4. Put it in the box.
5. Enjoy.

That would be to simple! He wants more!

Quote from: Loud and Low on November 09, 2011, 10:08:01 AM
I'd want to keep a stomp switch for each fuzz, plus a master on off switch for both.

But I know R.G. can guide you  :)

Loud and Low

Thanks for the replies.
Yeah, I would want to put a master on/off switch too.

I guess I should add,
I would like to have an LED for each fuzz, and an LED for the master on off too.
Is true bypass asking too much?

thanks!
T.V dinners by the pool. I'm so glad I finished school.

alparent

I'll try to draw something up this weekend.

Loud and Low

Thanks very much.
I appreciate your help.
T.V dinners by the pool. I'm so glad I finished school.

R.G.

First: read http://geofex.com/Article_Folders/wrapper/wrapper.htm and http://geofex.com/Article_Folders/bypass/bypass.htm

Notice how they ignore all the insides of the circuits. The effect circuit is merely a lump with an input and an output. The switching and indication go on completely outside it. And the input/output jacks, bypassing switches, and LEDs are all tucked inside an outer metal shell that does nothing but hold them in place.

If you take two effects and want to put them in the same metal box, you can just drill six holes in the metal box (presuming it's big enough!), two inputs, two outputs, and two holes for the bypass switches, and you're done. But that means if you want to always connect one effect in front of the other, you need a cord that goes from the output jack of the first in line to the input jack of the second in line, and you'll always leave that cord there. If you'll never move the cord, it's easier to go inside the box, cut the wires to the output jack of effect one and the input jack of effect two, and solder the wires together. That's what I described in the five-step program.

If you want a "master switch" you need to put a true-bypass "wrapper" around the whole mess of circuitry. You would then consider the entire mess of two effects, their bypass switches, LEDs, etc. to be the "effect" in the true bypassing article. So you put a third bypass switch on the box, give the input jack and output jack on the box to the bypass circuit, and wire the master bypass switch to the wires that go to the inputs and outputs of the two circuits.

It's boxes inside boxes inside boxes. Try drawing it out on paper.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.