Electro-Harmonix tubes 12AX7

Superior high gain short plate format Twin Triode, with ultra-low noise and detailed, musical tone. Most popular replacement for all circuits requiring 12AX7/ECC83 types.

• Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps
• Best all-around choice and best value for 12AX7
• ECC83/7025 equivalent
• Many OEMs use relabeled Electro-Harmonix vacuum tubes in their amplifiers