I have a device that is controlled by connecting a resistor between two of its connectors. The resistor can take any value between 0 and X, where X is an odd value. (E.G. X=1523ohm)
Does anybody have an idea how I can realise a circuit whose resistance can be varied manually between 0 and X? There must not be the possibility that due to user error the resistance is larger than X!
To clarify: I do not have a variable resistor but am looking for a circuit that has a variable resistance with an odd upper limit. Variable resistors have standard upper limits, e.g. 100 ohm, 1kOhm, etc. but not 1523 ohm...