CATHODE HEATERS AND ELECTRON DEVICE FILAMENTS
Union City Filament’s experience with cathode heaters, microwave tube heaters, and electron tube filaments spans our entire history. Our filaments and heaters are used in a myriad of vacuum electron devices including traveling wave tubes, klystrons, power grid tubes, thyratrons, and related dispenser cathodes. This product line includes space-qualified heaters and fast warm-up heaters in applications where consistent and flawless reliability is essential.
Filament and heater designs vary greatly in such devices, but Union City Filament is accustomed to recommending appropriate configurations and modifying specifications to suit device requirements and functionalities. Typical materials include tungsten, 3% rhenium tungsten, and thoriated tungsten. Cathode heaters and electron tube filaments are available coated in one of our alumina coating blends.