Assertion: amplifier | /r/CapableOf | use only one device
Facets:
value: at each stage
type: TEMPORAL
value: generally
type: MANNER
Source sentences:
text: Class-A amplifiers generally use only one device, unless the power supply is set to provide both positive and negative voltages, in which case a dual device symmetrical design may be used.
text: Most amplifiers use several devices at each stage; they are typically matched in specifications except for polarity.