Sophia Electric 12AU7 Tubes: Interchangeable with European ECC82
Attention to Primaluna equipment owners: Sophia Electric 12AU7 may not be compatible with your equipment.
Pricing:
Grade A (top 10%) : $125 per unit with 30 days warranty, $29.99 extra for one year warranty.
Grade B (top 25%) : $100 per unit with 30 days warranty, $29.99 extra for one year warranty.
Grade C : $79.99 per unit with 30 days warranty.