What kind of expression pedal can I use with my Moogerfooger?

An expression pedal for use with Moogerfoogers should contain a 50K or 100K potentiometer which is connected from the sleeve to the ring terminals of the plug. The potentiometer wiper is connected to the tip terminal. The pedal cable should be shielded, with the shield connected to the sleeve. Moog Music sells the model EP-3 expression pedal for use with Moogerfoogers.