Special Features:

Watts: 10; grid dissipation (max): 2 watts; cooling: conduction forced air; cathode: oxide-coated unipotential; heater voltage: 5.7 volts; heater current: 0.94 ampere; capacitances: grid-cathode 6.8 pf, grid-plate 2.5 pf, plate-cathode 0.035 pf; amplification (mu): 80; transconductance (sm): 25 mmhos; base: special coaxial; socket: special; seal and anode core temperature: 250 degress c; operating position: any

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).