I know I'm asking noobie questions I should already know, but without a teacher I'm in need of correct answers. Ive looked at a few single transistor radio circuits and they all seem to have a tank circuit feeding the collector of an NPN transistor, with a capacitor to bypass the transistor collector emitter altogether, I'm assuming this is the tuner, but how does it work, can DC voltage and AC voltage both exist while the tank circuit has DC voltage applied to it?
also how do you demodulate FM, I can see a diode in an AM circuit just cuts it in half, but hows FM or SW demodulated?
I know I'm asking about radio, its just my current line of learning.
also how do you demodulate FM, I can see a diode in an AM circuit just cuts it in half, but hows FM or SW demodulated?
I know I'm asking about radio, its just my current line of learning.