From this source, although from Golden Nights, I presume Audion used the same renamed tubes, http://db.audioasylum.com/cgi/search.mpl?searchtext=audion+golden+night&b=AND&topic=&topics_only=N&author=&date1=&date2=&slowmessage=&sort=score&sortOrder=DESC&forum=set
The CVX100 is a specially selected EC86, and the CVX120 is an E280F.
The CVX100 is a specially selected EC86, and the CVX120 is an E280F.