I am quite new at reading the amplifier datasheet.
Evaluating an amplifier for my needs is still a bit
fuzzy. 

I am interested in using an amplifier to increase the
current that flows from the collector to emitter. I do
know that the base current does control the current
that flows between the collector and emitter.

The problem is that the datasheet is vague.

http://www.fairchildsemi.com/ds/BC/BC338.pdf
http://www.fairchildsemi.com/ds/2N/2N3904.pdf

from these 2 datasheet I can make the conclusion that
the bc338 "allows" a great current flow between the
collector and emitter. While the other only "tops" off
at 100mA with a gain of 100. 

Unfortunately in real life I measure the gains quite
differently. The gains is not 100 for bc338 but in a
magnitude of 20? 

This is puzzling. Please help me clarify this question
of mine.

John



	
		
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