Special Features:

Mftr. Classification: uhf planar; envelope material: ceramic and metal; departure from cited designator: modified per faa specification qc-e-1123; substitutes for 8745/7815r electron tube; function, tube, electron faa7289; reference data, fig 126 index 181a, 181b, (v-2101, v-2102) t.O. 31p6-2fps20-4, technical manual, illustrated parts breakdown, an/fps-20 series radars, pg 324

Properties:

An inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. The electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. Includes phototubes (photoemissive type only), geiger-mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (klystron, magnetron, or the like). Excludes items whose primary purpose is to produce light energy. Also excludes photoelectric cell; and semiconductor device (as modified).