For vintage vacuum tube enthusiasts, the 6L6GC tube made by RCA is the most prized out of all of the 6L6GC's made by a variety of electronics companies. The RCA 6L6GC vintage tube and tube socket creates a high quality, very pleasant sound in audio equipment. Its plate is either black or gray. It produces smooth and rich tones with outstanding low-frequency performance. Tempo, melody, and rhythm are crisp and clear. The RCA 6L6GC features 8 pins. On its black base are written the words RCA Electron Tube along with the lightening bolt with the RCA encircled logo in orange. The shape of the glass tube is a typical cylinder.