Extra Class

What logical operation does a NAND gate perform?

What logical operation does an OR gate perform?

What logical operation is performed by a two-input exclusive NOR gate?

What does “positive logic” mean in reference to logic devices?

For what portion of the signal cycle does each active element in a push-pull, Class AB amplifier conduct?

What is a Class D amplifier?

What circuit is required at the output of an RF switching amplifier?

What is the operating point of a Class A common emitter amplifier?

What can be done to prevent unwanted oscillations in an RF power amplifier?

What is a characteristic of a grounded-grid amplifier?

Which of the following is the likely result of using a Class C amplifier to amplify a single-sideband phone signal?

Why are switching amplifiers more efficient than linear amplifiers?

What is characteristic of an emitter follower (or common collector) amplifier?

How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network’s input and output?

What is the frequency response of a T-network with series capacitors and a shunt inductor?

What is the purpose of adding an inductor to a Pi-network to create a Pi-L-network?

How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

Which filter type has ripple in the passband and a sharp cutoff?

What are the characteristics of an elliptical filter?

Which describes a Pi-L network?