are that there must be a method of determining frequency, there must be inphase
feedback, and amplification must occur. These requirements must be met whether the
principle of operation of the transistor oscillator is the same as that of the
In each of the following exercises, select the ONE answer that BEST completes
the statement or answers the question.
Indicate your solution by circling the
letter opposite the correct answer in the subcourse booklet.
voltage is applied to the filament.
voltage is applied to the screen grid.
positive voltage is applied to the plate.
positive voltage is applied to the control grid.
The element in an electron tube that is designed to collect electrons is
The current flow through a diode tube is controlled by the voltage between
plate and cathode.
filament and ground.
cathode and ground.
filament and cathode.
4. A comparison of the
semiconductor current shows that
both are bidirectional.
both are unidirectional.
tube current is unidirectional, semiconductor current is bidirec-
tube current is bidirectional, semiconductor current is unidirec-