I'm learning about oscillators, but I can't seem to get the tank to oscillate. I have built a very simple circuit using the 555 timer and a LC tank (sorry for the bad circuit layout, this was my first drawing):
My voltage source is 5v, not 2v, I made a mistake in the drawing. According to the formula, I'm getting a 4 hertz signal at 66% duty cycle: 138ms - high, and 69ms low.
I'm trying to produce the following pattern on my oscilloscope every time I get a signal from the 555:. I do not have a specific goal for the frequency/voltage or any of the other factors, I just want to generate this pattern.
If I remove the inductor, the wave becomes as expected:
But the problem is - if I put back the inductor in the tank circuit, my binary signal becomes a flat line with randomized distortions, I can't even make out where the signal starts or ends, it looks very similar to this:
I thought maybe the inductor is too high of a value, so I tried to use 10uh inductor instead of 100uh, then I can see again my binary wave with slight distortions, but nothing close to oscillation.
I believe my values are totally off for the tank circuit or the frequency coming from the 555 is too high and the 100uh inductor can't work 'fast enought', but I know nothing about eletronics, so it's just a wild guess.
Any hints on where did I go off the track?