I don't believe you can with the circuit as shown. One way you could modify things to get a sine wave out of it would be to connect a low-pass filter to it. A square wave is composed of a summation of higher-frequency sinusoidal functions. By adding a low pass that cuts off just beyond the frequency of your square wave you can reject those higher-frequency components leaving you with a nice sinusoidal output. You would want to be sure to buffer the low pass filter or use an active low pass filter with a high input impedance so that way you don't distort the oscillator's frequency by adding your filter.
@@davebutler3905Perhaps better to use another solid state solution... like a phase shift oscillator for a nice sine wave. Or perhaps I'm just saying that because I wouldn't know how to apply your light bulb solution to the actual circuit. Would a light bulb be better than waveshaping a _triangle_ wave with diodes? (Just sayin' because triangle is so easy to make with op-amps).
Very good.
Thank you.
Can you show that circuit doing useful work like powering a bulb or motor?
What software you have used to draw the ciruits? I mean black background with white sketch?
Can you make it create a nice sine wave with the LC tank, or does it just rail it regardless?
I don't believe you can with the circuit as shown. One way you could modify things to get a sine wave out of it would be to connect a low-pass filter to it. A square wave is composed of a summation of higher-frequency sinusoidal functions. By adding a low pass that cuts off just beyond the frequency of your square wave you can reject those higher-frequency components leaving you with a nice sinusoidal output. You would want to be sure to buffer the low pass filter or use an active low pass filter with a high input impedance so that way you don't distort the oscillator's frequency by adding your filter.
Use a light bulb to limit gain...
Resistance increases when the filament warms up.
@@davebutler3905Perhaps better to use another solid state solution... like a phase shift oscillator for a nice sine wave. Or perhaps I'm just saying that because I wouldn't know how to apply your light bulb solution to the actual circuit. Would a light bulb be better than waveshaping a _triangle_ wave with diodes? (Just sayin' because triangle is so easy to make with op-amps).
There is no such thing as negative resistance.