Colpitts oscillator

118

02:12:53

Colpitts oscillator

https://www.youtube.com/watch?v=R-bMTlVF0Uk

published 8 years ago

hurz

8 years ago

With 100uF/2 and 10mH you get a resonance frequency of 225Hz. Set the simulation speed to about 2ms/s and it will oscillate for you.

francoisp31

8 years ago

Protect you led with resistor ☺

FernandoCPF

8 years ago

@francoisp31 10k ohm in the base of transistor

hurz

8 years ago

10k to limit the base current is the wrong place, cuz LED current will depend on forward beta of BJT. Suppose to have a forward beta 300 quite normale and see the LED current! Anyway, who cares a 225Hz flashing LED?

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