Simple Footswitch Question for Classic 30

[PlayItAll]

Hello all,

I'd like to try my hand at building a simple footswitch for my Peavey Classic 30. It has a (stereo) out for the two-button Peavey FS that will toggle between channels and turn the reverb on and off, but I only need a one-button FS with that will toggle between the normal and OD channels. It doesn't need to have an LED. I want something super small and sturdy kind of like the old-fashioned Fender single-button switches.

Would that be easy to make, or will I run into problems with the stereo jack being hooked up to a single-button FS? What parts would I need?

Thanks,
Ed

[Enzo]

Just to be anal, while we know what you mean by stereo, we refer to those as tip-ring-sleeve or TRS connectors.

The tip contact runs the reverb. It is normally - meaning when nothing is plugged into the jack - grounded, which turns the reverb on. If you plug anything in the jack it will kill the reverb.

The ring contact - the band around the plug that makes it "stereo" - controls the channel. It is normally grounded in the jack. Your FS should open and close that ground connection.

A plain old one button switch will work if you plug it halfway into the jack - to the first click. Not very reliable, but it works.

To use a one button switch, put a TRS plug on the end of the cable, with the switch wires going to ground - the shaft of the plug, called the sleeve - and to the ring. In order for the reverb to work, solder a small jumper wire from the tip contact to ground.

[petemoore]

..

Basically the best and worst you can do is make/bread the ground connection for that parameter [reverb or trem or...] which makes the amp parameter change states.
that's all the amp sees.
With this type of switching<
You can't really mess up as long as you stay passive..
Get the TR and S to connections outside the amp [done easiest by using a TRS to TRS cable], plug one end in the amp, find ground, connect Gnd to tip, note any parameter changes, mount the control in FS house.

[PlayItAll]

Thanks guys - appreciate the help!

Ed