INDEX-2 Closed-loop operation, operational amplifiers, 3-18 to 3-23 Combination peaking, 2-14, 2-15 Compensation of rf amplifiers, 2-23 to 2-25 neutralization, 2-24, 2-25 transformers, 2-23 Coupling, amplifiers, 1-9 to 1-13 direct, 1-10, 1-11 impedance, 1-12, 1-13 RC, 1-11, 1-12 transformer, 1-13 Coupling, rf amplifier, 2-21 to 2-23 D Differential amplifiers, 3-2 to 3-14 basic differential amplifier circuit, 3-2 differential-input, differential-output, differential amplifier, 3-13 single-input, differential-output, differential amplifier, 3-12 single-input, single-output, differential amplifier, 3-11 two-input, single-output, difference amplifier, 3-3 to 3-10 typical differential amplifier circuit, 3-10 Direct coupling, 1-10, 1-11 F Factors affecting frequency response of an amplifier, 2-9 to 2-11 Feedback, amplifier, 1-17 to 1-24 negative, 1-23, 1-24 positive, 1-20 to 1-23 Frequency-determining network, rf amplifier, 2-19 Frequency-response curve, reading amplifier, 2-5 to 2-7 Frequency response of amplifiers, 1-5 G Glossary, AI-l to AI-3 H High-frequency compensation for video, 2-12 to 2-16 amplifiers, 2-12 to 2-15 combination peaking, 2-14, 2-15 series peaking, 2-12, 2-13 shunt peaking, 2-13, 2-14 I Impedance considerations for amplifiers, 1-14 to  1-17 Impedance coupling, 1-12, 1-13 L Learning objectives, video and rf amplifiers,    2-1   Low-frequency compensation for video amplifiers, 2-15, 2-16 M Magnetic amplifiers, 3-42 to 3-57 basic operation, 3-42 to 3-44 methods of changing inductance, 3-44 to 3-46 saturable-core reactor, 3-46 to 3-52 simplified magnetic amplifier circuitry,     3-52 to 3-57 O Operational amplifiers, 3-15 to 3-41 applications, 3-29 to 3-40 difference amplifier (subtractor), 3-36 to 3-40 summing amplifier (adder), 3-29 to    3-35 bandwidth limitations, 3-25 to 3-28 block diagram, 3-16, 3-17 characteristics, 3-15 closed-loop operation, 3-18 to 3-28 inverting configuration, 3-18 to 3-23 noninverting configuration, 3-23 to    3-28