公开(公告)号：US3758810A

公开(公告)日：1973-09-11

申请号：US3758810D

申请日：1971-11-18

Applicant: PHILIPS CORP

Inventor： SEIFERT H

IPC: H01J19/00 ,  H01J19/38 ,  H01J1/46 ,  H01J17/12

CPC classification number: H01J19/00 ,  H01J19/38 ,  H01J2893/0017 ,  H01J2893/0022

Abstract: A metal-ceramic tetrode or triode which comprises a cylindrical rod grid which is manufactured by means of a spark erosion process. In order to improve the mechanical stability of the grid and also to shift the resonant frequency to higher frequencies, the grid comprises wide and narrow rods. Since the wide rods bend inwardly or outwardly during the spark erosion process, the slots, to avoid said drawback, adjoining the wide rods extend in at least one inwardly extending flange of the cylinder farther in the direction normal to the curved surface of the cylinder than the slots present between the thin rods.

Abstract translation: 金属陶瓷四极管或三极管，其包括通过火花蚀刻工艺制造的圆柱形棒栅格。 为了提高电网的机械稳定性，并且将谐振频率转移到更高的频率，电网包括宽而窄的棒。 由于宽杆在火花侵蚀过程中向内或向外弯曲，所以为了避免所述缺点，相邻的宽杆在圆柱体的至少一个向内延伸的凸缘中沿着垂直于圆柱体曲面的方向延伸得更远， 狭槽之间存在槽。