CPC Subgroup
H01J 17/64 Tubes specially designed for switching or modulating in a waveguide, e.g. TR box
Full Title
Gas-filled discharge tubes with solid cathode (H01J25/00, H01J27/00, H01J31/00 - H01J41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26) > Tubes specially designed for switching or modulating in a waveguide, e.g. TR box