The TAD 12AT7 / ECC81 is a high quality, premium selected, low noise, & balanced preamp tube - selected for best symmetry and balance. Ideal as a strong driver tube in phase inverters and reverb drivers. Often found as OE in high-end headphone and other audio amplifiers.
All preamp tubes labeled Premium Selected have passed the following tests:
- Low Noise Test
- Microphonic Test
- Gain Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Balanced Output Test
Open Datasheet - 12AT7 / ECC81