6AV5GA is a dual diode-triode vacuum tube used in audio, oscillator, and modulator circuits. It consists of two separate sections: the diode, which is used for rectifying, and the triode, which is used in amplifying and oscillating circuits. The 6AV5GA is very linear and has a low distortion level, making it ideal for audio applications. It was introduced in the mid 1940s as a replacement for the original 6AV5A, and has been used in these applications ever since. Its maximum plate voltage is 250 volts, and plate current is 28 milliamperes. Grid resistors can range from one to ten, and the average plate dissipation is 3.5 watts.