Quote:
Originally Posted by Don Lindsly
Nuvistors They were used exclusively in tuners and industrial front end applications.
Compactrons used conventional tube technology and usually combined several applications into a single envelope.
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Audio people like Nuvistors for microphone and phono (record turntable) preamps, IIRC less "microphonic".
I've heard that compactrons had shiny insides to the plates, to reflect some of the infra-red heat radiation back to the cathode, thus allowing the use of a little less heater power.