Jony130,
I am sorry, but I cannot understand what you are trying to say. It just does not make sense to me. I cannot comprehend your reasoning and conclusion. However, Brownout appears to understand what you are saying, so mabe he can explain your thoughts.
Ratch
Well I think that it is another way around. When Q2 is first "ON" is in saturation and with time during the increase of current in Q2. Q2 "switch" from saturation to active region. And thanks to C1 an this "switch" to active region Q1 and Q2 start to cut-off.
So it is the increases of a collector current that cause BJT to cut-off.
I am sorry, but I cannot understand what you are trying to say. It just does not make sense to me. I cannot comprehend your reasoning and conclusion. However, Brownout appears to understand what you are saying, so mabe he can explain your thoughts.
Ratch