8 1-64.   Which of the following methods provides the widest band-pass in an rf amplifier? 1.    A swamping resistor 2.    A loosely coupled amplifier 3.    A large input-signal-developing resistor 4.    A small output-signal-developing resistor 1-65.   Which of the following methods will compensate for the problem that cause low gain in an rf amplifier? 1.    Using rf transformers 2.    Taking advantage of the interelectrode capacitance 3.    Both 1 and 2 above 4.    Using audio transformers 1-66.   Which of the following types of feedback is usually caused by the base-to-collector   interelectrode capacitance? 1.    Regenerative 2.    Decoupled 3.    Positive 4.    Negative 1-67.   In an rf amplifier an unwanted signal is coupled through the base-to-collector interelectrode capacitance.  This problem can be solved by providing feedback out of phase with the unwanted signal.  What is this technique called? 1.    Neutralization 2.    Compensating 3.    Decoupling 4.    Swamping THIS SPACE LEFT BLANK INTENTIONALLY. Figure 1C.—RF amplifier. IN ANSWERING QUESTIONS 1-68 THROUGH 1-75, REFER TO FIGURE 1C. 1-68.   Which of the following components is/are part of the input-signal-developing impedance for Q1? 1. C1 2. T1 3. C3 4.    All of the above 1-69.   What is the purpose of R1? 1.    To provide swamping for the secondary of T1 2.    To act as an output-signal-developing resistor 3.    To provide proper bias to the base of Q1 4.    To develop the signal coupled by C3 1-70.   What is the purpose of R2? 1.    To provide swamping for C4 2.    To develop the input signal for Q1 3.    To provide bias to the emitter of Q1 4.    To act as the output-signal- developing resistor 1-71.   If C4 were removed from the circuit, what would happen to the output? 1.    It would increase 2.    It would decrease 3.    It would remain the same 4.    It cannot be determined