An engineer is designing a television tuner circuit. Which diode would you expect to see in the design?
A) A constant-current diode.
B) A tunnel diode.
C) A varactor diode.
D) A PIN diode.
Chapter 5 Special Applications Diodes Answer Key

Question

Quizplus · Accepted Answer

A varactor diode is used in a television tuner circuit because it acts as a variable capacitor, which is essential for tuning to different frequencies. Varactor diodes allow the circuit to adjust the resonant frequency of the tuner to select different channels.

An Engineer Is Designing a Television Tuner Circuit