Originally Posted by: pogohead... surely if pins 2 and 3 are connected, wont they just short out?

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Anyway, Pin 3 is one end of the resistor, right?
And Pin 2 is the wiper?
And they're connected together?
Which will short out only the portion of the pot between the wiper position and the Pin 3 end of the resistor, leaving the rest of the resistor in the circuit.

So, moving the wiper by turning the shaft will change the resistance to any value from zero (wiper at Pin 1 end of the resistor, shorting Pin 1 to Pin 3) to the full value of the pot (wiper at the Pin 3 end of the resistor, not shorting any of the resistor), yes?[/font]