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
In a diode with an indirectly heated cathode, the element that
collects the electrons is known as the
The getter is a substance used to facilitate the operation of
electrode within an electronic tube.
In addition to the heater element, a duodiode tube requires a
two plates and two cathodes.
one plate and two cathodes.
one cathode and two plates.
two plates and one anode.