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- ECC803s (EU) tube used in a wide range of musical equipment.
- Durable and with a long life.
- One of the best value tubes available.
- Consistent quality over the tubes lifetime.
- Tried and tested vintage design.
ECC803S is a long plated 12AX7. Long plate gives the tube a fuller and stronger sound compared to the regular 12AX7 as well as reduced microphonics.