Here’s a Simple mod for your VD 400 to increase the delay time. All you need to do is open the pedal up and use a small screwdriver to make the adjustment no soldering or any other skilled necessary.
There’s no need for it all you’re doing is extending the range of the existing pot it’s still operates normally but by turning the trim pot, you’re giving it a wider range of the existing speed control.
Once you open it up and adjust that trim pot all you’re doing is extending the range of the existing speed control so when you put it back together it operates normally but you can get it to go much slower if you want so therefore no more adjustment needed.
