If the gain of one stage
of amplification is
insufficient, then two
or more stages can be
connected in cascade, as
shown.
If the gain of each
stage is 50 times, then
the overall gain is 50 x
50 =2,500.
If the input to Tr1 is 1
mV, then the output of
Tr2 is 2,500 mV
=2.5Volts.
If the gain is excessive
the circuit may be
unstable, or the output
may be clipped.
