Signal delay schematic


Here's what I would like to find a schematic for.

I wish to take the guitar chord, split the signal, run one signal straight into input one on my guitar amp and the other signal through an adjustable delay then into input two. I want to delay the signal a few milliseconds or so and I want it adjustable so I can dial it in.

What I am trying to accomplish is to create a second signal that lags slightly to give the effect of a fatter note.

I have looked around to see if anyone else is or has worked on such a project and I don't see anything yet. Does anyone here have any ideas or know of a schematic that would do this?

Thanks for your help!