Fender style footswitch Vibrato/Reverb

Started by JPGraphX, January 30, 2014, 09:26:28 AM

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JPGraphX

Hi,

First I must say I have a good idea on how to do it, but I'm clearly not a pro in electronic and would like to know exactly where I'm going with this.
I would like to build a fender style vibrato/reverb footswitch. I can't find a good wiring diagrams. I would like two buttons and two leds, with a DC 9v and a 1/4 jack out to my amp.

And yes I used Search engine, and didn't find something clear and exactly what I want.
Anyone have wiring diagrams?

Thanks you SO much!!
JP

dwmorrin

As a replacement for a Fender vibrato/reverb footswitch?  To go into a Fender amp?

You'll need the right cable.  Inside the cable jacket, you need at least two wires plus a good shield around the wire carrying the audio.
The real Fender cable has the shield only around the audio, which may be important to keep footswitch *pops* out of the audio path.  Not sure.  I built one a while ago for someone, but I reused the old cable.
The "reverb" jack has audio coming down it.  This is one that gets the shielding.
The "vibrato" jack has a dc voltage sitting on it.

You'll need a stereo jack for the cable.

Original switches are dirt simple, just SPST on/off type.  Just ground or un-ground the wires from the cable.
You'll want double pole switches so you can switch your LEDs too.

Add a dc power jack and wire up to the LEDs.

LEDs need power->resistor->(+)LED(-)->ground to work.  You swap the resistor like this: power->(+)LED(-)->resistor->ground, with no penalty.

If you are absolutely lost on switch wiring, I would suggest getting one in your hand and playing with a multimeter's resistance check until you "get it."  Single poles are easier to "get" than double poles, and don't bother with a triple pole here unless that's all you have on hand.
Otherwise, post a pic of the actual stomp switch you plan on using so someone can draw the correct diagram.

PRR

What vintage Fender?

The OLD amps, the switch is simple. (What David says.)  And there's no in-amp provision for LEDs (because they were 20+ years in the future).

There's been countless re-thinkings since then. So it matters *which* Fender.
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