Description
The NessTone 12AT7/ECC81 is a hand selected preamp tube with extremely low noise and microphonics. In preamp application it is a medium gain tube with a Mu factor of 60 compared to 100 for the 12AX7 and 20 for the 12AU7. The 12AT7 is most commonly used as a reverb or tremolo driver and a phase inverter tube in a push-pull amplifier.
albert angers –