BasicB-004-005-001
What is one reason a triode vacuum tube might be used instead of a transistor in a circuit?
B
Answer
Components and circuits
Type
A
It uses lower voltages
B
It may be able to handle higher power
C
It uses less current
D
It is much smaller
Answer Notes
While transistors have largely replaced vacuum tubes in modern electronics due to their small size, high efficiency, and low voltage requirements, vacuum tubes like the triode still hold a few specific advantages. Chief among these is their ability to handle very high power levels and voltage transients.
The physical construction of a vacuum tube allows it to dissipate large amounts of heat and withstand momentary overloads that would instantly destroy a solid-state transistor. This makes them suitable for very high-power RF amplifiers.
The distractors are all exact opposites of reality: vacuum tubes are much larger, require significantly higher operating voltages, and consume more current than transistors.
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In a field-effect transistor, which two electrodes are connected to the ends of the channel?
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Which two elements of a triode carry the output current?