The Danelectro Psycho Flange used to be manufactured like a wah pedal but now it looks like this: It was very convenient being able to control the amount of flange "swoosh" but now Danelectro doen't make this exact pedal anymore. It also seems that no flange pedals are manufactured like a wah pedal. Is it possible to buy a flanger (like the one pictured above) and hook up a wah pedal (with potentiometer) to have this precise control of "swoosh."
Usually, all you really need to do is connect a TRS jack where the pot is in the pedal (they're both three terminal devices) and have a TRS jack connected similarly in your expression pedal. If it's just a variable resistor, you could get away with TS, but if there's actual audio signal on that line,* it's probably still better to use TRS so the signal stays inside the shield which is then connected only to ground. If you can fit it in the case without removing the pot, you could use a sywitching jack, so the pot still works when the expression pedal is not connected.
I figured out a while back that a passive volume pedal with TS in and out can be pressed into service for a TRS expression pedal by using a TRS>dual TS "insert cable". The tip of the input is always connected to the top of the pot. The tip of the output is the wiper. All the sleeves are the bottom. I use my VPJrs like this into my GI10 to control VST wahs and things.
Then again, I know there is somebody that makes a mechanical expression pedal that literally just turns the knob as you waggle the way-type pedal. I can never find that link when I want to, but I know it's out there.
*I can't imagine there would be in this particular case. We'd have to check out the schematic to be sure, but I'd imagine both speed and depth affect the LFO signal rather than being in the actual audio path. It's still small signal work, though, so shielding never hurts.
Edit - Found it! Sort of. I think it's discontinued. Was manufactured by Tone in Progress, and called the 3rd Hand. Apparently EHX had something called the Hot Foot that was similar. Also no longer produced. Here is a vid of somebody using it with a flanger.
Edit again - There's this KickDisk thing, but it's not exactly the same deal. I know people who cut cardboard or plastic tags (popsicle sticks would probably work, too) and attach them to pots for something similar to this, but it's not exactly a natural, comfortable, or precise motion. I have a big tophat knob on my feedback pedal that I was trying to turn with my toe for a while, but I found that a Volume pedal on the way into the return jack worked much better, once I lowered the pot value via parallel resistor.
Last Edit: Jul 22, 2015 19:18:31 GMT -5 by ashcatlt
Post by JFrankParnell on Aug 26, 2015 15:04:53 GMT -5
I like it. The kickdisc, and the fact that knobs could be replaced with treadles.
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