In transistor oscillators, FET and BJT are used. Instability is achieved by:

Related MCQs

• In transistor oscillators, the requirement of a negative resistance device is satisfied using a varactor diode.
• Quartz crystal and tourmaline used in oscillators work on the principle of:
• In microwave oscillators, negative resistance transistors and diodes are used in order to generate oscillations in the circuit.
• Oscillators operating at millimeter wavelength are difficult to realize and are also less efficient.
• In distributed amplifiers, all the FET stages in the amplifier are connected in series to one another.
• High gain is not achievable at microwave frequencies using BJT amplifiers because:
• For Colpitts oscillator, the capacitors C1 and C2 in the feedback network are 1 µF and 25 µF respectively. Then the β value of the transistor is:
•                        amplifiers are linear circuits, where the transistor is biased to conduct over the entire range of the input signal cycle.
• Behavior of a transistor in power amplifiers is unpredictable at all input signal levels.
• To flatten the gain response of a transistor: