[dave1027]

I believe the answer to your question is yes...kinda.

You can use a potentiometer to control a jaguar but first you will have to run to radioshack(the shack) and pick up a few things.

You should be able to generate the appropriate signal using a basic 555 timer circuit. I am on my phone righht jow so i do not have the specifics but there are enough web pages a quick google for 555 timer circuit will provide the circuit. The 555 timer circuit uses two resistors to determine the frequency and pulse width of the ouput signal. You should be able to use a poteniometer for the pulse width resistor to create a very simple circuit on a breadboard thst will control a jaguar output via a potentioneter without using any type of digital control.

Sorry this explanation may be better suited to the slightly more advanced reader but a little research online should be enough to enlighten even a beginner.