This beam power amplifier is from the Bendix Red Bank line of reliable vacuum tubes. It is specifically designed to replace the 6Vé for aircraft and industrial applications where freedom from early failure, long average service life, and uniform operating characteristics are extremely important. Each tube is given a 45-hour run-in under var- ious overload, vibration, and shock conditions likely to be encountered in service. This run-in serves to reduce early failures by eliminating tubes with any minor defects that might lead to failure under actual operating conditions. The use of a coil type heater inside an extruded alu- mina insulator gives a long life heater structure which stands up well under high heater to cathode voltage. The short mount, the heavy side rods on the grids, and the multiple supports on the cage give an improved structure which maintains rigidity under shock and vibration. The tube requires an 8-pin octal socket and can be mounted in any position.