Lesson 1/Learning Event 2
a. In the first stage, the signal is stabilized and a high signal to noise
ratio is achieved. The video signal is sent to the second stage, where it is
amplified and processed by the frequency adjustments to stop stray capacitance and
correct symmetry. The video signal is sent from this stage to the third stage,
where it is inverted and amplified again, then sent to the line driver.
b. The line driver amplifies the video signal and sends the signal out to
its respective video amplifier, where it is terminated into 75 ohms. The
preamplifier has now converted an unstable current input into a stable voltage
output.
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