ECC803s 12AX7 Gold Pin Preamp Vacuum Tube ✓ Free 60 Day Returns ✓ Free Express Shipping Description: The Tung-Sol ECC803s is a low noise version of the standard Tung-Sol 12AX7. Warm in character with lots detail, this tube is perfect for any hi-fi or musical instrument amp out there. We really like it for microphone preamp / effects applications. Compare with other tubes here. Features: New in original packagingLow NoiseGold Pin Product Details: Item Weight: 0.32 ouncesProduct Dimensions: 0.98 x 0.98 x 2.48 inchesItem model number: 12AX7-GoldIs Discontinued By Manufacturer: NoDate First Available: September 27, 2011