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Old 31st Jan 2016, 10:50 pm   #22
Join Date: May 2008
Location: Derby, UK.
Posts: 7,571
Default Re: ♩ I'm going slightly mad... ♩ Transistor Craziness!

I suppose this is for the same reason why you have to set a quiescent current to avoid crossover distortion; the transistors do not behave linearly at low collector currents, and hence they give false readings on a simple tester. (Mine says it uses a collector current of 2.5 mA.)
If I have seen further than others, it is because I was standing on a pile of failed experiments.
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