ข้อมูลTubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Haeff tube


เวอร์ชั่นข้อมูล

เวอร์ชั่น รหัส / code คำอธิบาย / code name เครื่องมือ
1 H01J0025040000 Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Haeff tube 29/09/2562