Only difference resides in larger electrodes which have lower electron emission rate and thus higher voltage drop, which makes longer tube necessary in order to attain efficiency of operation. (See also Elec World v 119 n 18 May 1 1943 p 38-41)
What's different about cold cathode?
Ry Mech Engr
Railway Mechanical Engineer ; 117 , n 6
1943
3 pages
Article (Journal)
English
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