The 12GC6 tube is a general purpose, compact glass envelope beam power amplifier tube. It has an octal base and is used in many audio amplifiers and are commonly used for playing guitar and bass in combo amplifiers. It features a 9 pin base and an 8 pin grid assembly. The 12GC6 has a maximum anode voltage rating of 250V and a maximum grid voltage of -3V. It has a maximum anode dissipation of 10W and a maximum single grid dissipation of 0.1W. The 12GC6 tube is best known for its clean, sparkly tone and is often used in vintage amplifiers for blues, jazz, and rock music.