Assertion: neon lamp | /r/ObjectUse | used as millimeter-wave detectors
Facets:
value: up to about 100 ghz
type: OTHER
value: said in such service
type: OTHER
value: historically
type: TEMPORAL
Source sentences:
text: Neon lamps have been historically used as microwave and millimeter-wave detectors ("plasma diodes" or glow discharge detectors (GDDs)) up to about 100 GHz or so and in such service were said to exhibit comparable sensitivity (of the order of a few 10s to perhaps 100 microvolts) to the familiar 1N23-type catwhisker-contacted silicon diodes[citation needed] once ubiquitous in microwave equipment.