Not to much, the Var Resistors I have, have 3 pins and so does the pots I have.The potentiometer usually has three connections as you are probably aware. If you connect the wiper to either of the other two connections you have a variable resistor with two connections. You can also use the potentiometer to provide a variable voltage, from the wiper, with a reference voltage connected across the potentiometer. So strictly speaking they don't do the same thing but you can use a potentiometer has a variable resistor. I hope that makes sense?![]()
It seems like the only difference in your case are the resistance values then. They're the exact same but with different resistance ranges.Not to much, the Var Resistors I have, have 3 pins and so does the pots I have.
I was playing with them and the pot seemed to reduce a little power while the resistor barely let any power go through.