View Single Post
  #17  
Old 10-08-2009, 04:02 PM
jr_tech's Avatar
jr_tech jr_tech is offline
VideoKarma Member
 
Join Date: Sep 2009
Posts: 4,510
I can't find a good reference that shows the secondary yield curves for various phosphors, but as I recall, most exhibit second crossovers in the range of 8 to 15 kV. I suspect that most early non-aluminized crts were operated below the point that "sticking" could occur, so the description of the landing energy of the electrons being controlled by the internal conductive coating of the tube would be valid. Much above about 10kv all bets are off...aluminized screens were likely necessary to achieve full landing energy (minus a kv or 2 lost in penetrating the aluminum layer).

jr
Reply With Quote