K, I now realize that the circuit I have drawn definately wont work, so I need some more help :)
A long time ago, someone drew me up a circuit with a darlington transistor and a zener diode used as the switch of the circuit, I just can't remember where exactly the transistors emitter and...
OK, I want to make a rheostat controlled fan, that will switch itself off if the voltage to the fan is bellow a set voltage (6.3V in the circuit bellow).
First I want to make sure that the circuit I have bellow will actually do what I need it to, and second, I would like to know if my .6 amp...