I need to switch an an inductor (coil) on/off fast and automatically for a boost converter. So I am using a transistor with its base connected to the output of a 555 timer with a low resistor. However, as I have seen before, if a coil is connected to a transistor's collector or emitter and the transistor's base has a resistor on it, the coil with not generate a proper magnetic field. Why is this? Is there a way to do it properly? Can I connect the transistor directly to the output of the 555 without a short? Anything helps. This is probably a noob question, but thanks anyway!