- 12AY7 / 6072 tube.
- Used in audio equipment and some guitar amps.
- Lower gain ECC83.
- Great consistent JJ electronic quality.
- Warm and balanced.
This medium gain preamp tube was originally developed pre ECC83 and has 40-50% less gain than the ECC83. It's often used to tame and clean up an amplifier which has gain levels which are slightly too high.