Balanced JJ 12AT7 ECC81 Preamp Tube

The Balanced JJ 12AT7 ECC81 preamp tube are a low noise and low microphonic preamp tube. A good choice for phase inverters and reverb circuits calling for 12AT7 tubes.

These tubes are balanced.

Why choose the JJ 12AT7 ECC81 Preamp Tubes?

This is one of the best new 12AT7 ECC81 preamp tubes for any guitar amp.  The European ECC81 tube type is equivalent to the North American 12AT7 tube and can be used in any 12AT7 or ECC81 circuit.

The JJ 12AT7 ECC81 preamp tubes are one of the most popular choices of preamp tubes for cleaner sounding guitar amps, and with good reason.

12AT7 vacuum tubes carry medium gain with a typical amplification factor of 60. This is why you will typically find 12AT7 ECC81 JJ Preamp Tubes in most guitar amplifiers where the tubes break up later and the player is searching for a cleaner tone. This can be compared to 12AX7 ECC83S JJ Preamp tubes which have an amplification factor of 100, and can be more commonly found in guitar amplifiers which have higher gain.

For more technical information on the 12AT7 ECC81 vacuum tube, read here 12AT7..