14. The primary function of resistor R4 in figure 4-2 of the attached memorandum
is to
a. vary the output volume.
b. adjust the bias voltage.
c. modify the output tone quality.
d. protect the transistor from the effect of runaway.
15. There is no provision for degenerative feedback from the output to the input
circuit of figure 4-3 (attached memorandum) because the
a. transistors are free of distortion due to the balanced input.
b. harmonic distortion is prevented by proper adjustment of bias voltage.
c. flywheel effect of the tuned output circuit overcomes harmonic distortion.
d. push-pull circuit cancels out most of the harmonic distortion created by
the transistors.
CHECK YOUR ANSWERS WITH LESSON SOLUTIONS ON PACE 52.
322 L4
33
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