Help understand basic hartley oscillator

Thread Starter

Santa klaus

Joined Nov 16, 2014
32
How come this transistor conducts when the input doesn't reach 0.6 V and the emitter is at the ground?
The green signal is the collector ouput . the blue is the input.
upload_2016-5-5_18-51-21.png
 

wayneh

Joined Sep 9, 2010
16,162
What makes you think the transistor is conducting? The voltage after R1 depends on the current flowing into the oscillator, not the transistor.

Take a look at the current across the transistor.
 

BR-549

Joined Sep 22, 2013
4,938
I can't read your circuit......too small and I can not expand it.

Now.......does the collector signal come from the transistor junction...............or from the bias resistor?
 

BR-549

Joined Sep 22, 2013
4,938
Boy....they sure have slowed down on letting you know someone has posted............while you are posting.

8 minutes passed, without informing me.
 
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