The 6AJ5 is a miniature remote-cutoff pentode vacuum tube. It was designed to be used as a low-level amplifier, phase inverter and as an oscillator. It is composed of five active elements, a cathode, control grid, screen grid, suppressor grid, and plate. It has international base pins for convenient connection and is capable of withstanding high transformer temperatures. The 6AJ5 can be found in many TV sets, radios, amplifiers and electronic circuits. It is a rugged and reliable tube and can be used with other type of tubes.