Assertion: tv's tuner | /r/CapableOf | use varactor diodes
Facets:
value: as the actual tuning elements
type: MANNER
Source sentences:
text: Modern electronic tuners also use varactor diodes as the actual tuning elements, but the voltages which change their capacitance are obtained from a digital to analog converter (DAC) driven by a microprocessor or phase locked loop (PLL) arrangement.