Groove Tubes are the tubes that come as standard equipment on every Fender® Tube Amplifier that leaves the factory.Improved harmonic balance, Designed for long-lasting use,Matched gain to distortion ratio; wider frequency response
Beam power tetrode with a specially developed cathode coating, careful alignment of the grid, tri-alloy plate material for flawless performance up to 475 volts. Perfect for high plate voltage amplifiers like the Fender Deluxe Reverb.
The JAN Philips 12AT7WC / ECC81 tube is a high quality military pre-amp tube that is preferred for guitar amps and high end audio. The JAN Philips 12AT7-WC is durable, reliable and provides great bang for the buck value.The 12AT7 tube type is equivalent to the European ECC81 tube and can be used in any 12AT7 or ECC81 circuit.