12 Jul
2007
12 Jul
'07
2:52 p.m.
You can also look out for tetrode thyratrons - these
have an extra electrode
that can be used to control the trigger point to some extent. The are
available as heated and cold cathode versions.
IIRC, the very common 2D21 (EN91 in Europe) is a hot cathode tetrode
xenon thyratron.
-tony