6J7

Octal 8-pin sharp-cutoff voltage amplifier pentode utilizing a top-cap control grid to minimize input capacitance and hum pick-up in high-gain audio and RF circuits. Equivalents: 6J7G, 6J7GT, 6J7GTX, VT-91, EF37, CV1936. Real-Life Examples: Western Electric 124 theatre amplifier, Gibson EH-150 lap steel guitar amplifier, RCA 76-B2 radio broadcast console mixer.