Assertion: amplifier's power | /r/HasProperty | removed
Facets:
value: from the primary tube
type: OTHER
Source sentences:
text: Two CFAs can be connected sequentially with only one powered; if it fails, power can be removed from the primary tube and applied to the secondary as a backup.
text: The best method varies with the PA design, but in general the most accurate method is by applying drive to a cold PA stage (generally either screen and plate or filament power is removed) and feedthrough power is measured with a sensitive detector.