7. Assume that you are slug-tuning the inductor in a tuned circuit.
move the iron core into the coil you are causing the
a. inductance to increase and the resonant frequency to increase.
c. inductance to increase and the resonant frequency to decrease.
8. The process of preventing self-oscillation in an RF amplifier is known as
a. parasitic suppression.
b. degenerative feedback.
9. Figure 98 of TM 11-665 is a schematic diagram of a simple transmitter.
Capacitor C5 is a variable capacitor used in order to
a. permit conversion of this stage into an oscillator.
b. provide the correct amount of regenerative feedback.
c. provide the correct amount of degenerative feedback.
d. insure that the feedback signal is exactly 1800 out of phase with the
10. Intermediate amplifier
a. plate voltage is greater than the screen voltage.
c. output frequency in an intermediate amplifier is always different from the
to prevent oscillation.