Assertion: power tube | /r/CapableOf | tube use on the order of 10 to 20 watts
Facets:
Source sentences:
text: Miniature receiving tubes for line-operated equipment use on the order of 0.5 to 4 watts for heater power; high power tubes such as rectifiers or output tubes use on the order of 10 to 20 watts, and broadcast transmitter tubes might need a kilowatt or more to heat the cathode.