Need Some Recomendations For A Good Tremelo Circuit

[thegarehanman]

I want to build a tremelo pedal that has a wah style tredel to control the speed and additional knobs to control the depth and mix. I found a diagram for a trem that uses the same wah style setup. It was called a "kay trem." Unfortunately, it made no provisions for depth. Can anyone post or direct me to a schematic that has these features, or could someone possible inform me of the modifications neccessary to make the circuit in the link below it the bill? If you post an entirely different schematic, be aware that I'm looking for a trem sound that's choppy, not fluid, but if a circuit were to have the option of selecting choppy or fluid oscillations(would that be square waves vs. sine waves?), that would be primo!

http://www.generalguitargadgets.com/diagra...sc_original.gif

peace,

russ