Electro-Harmonix Preamp Tube 12AX7/ECC83 (Single)

The Electro-Harmonix 12AX7EH Preamp Tube is a high-quality valve designed for maximum gain, low noise, and rich musical tone. Engineered to rival sought-after NOS tubes, it delivers detailed response, strong harmonics, and excellent clarity—ideal for both guitar and hi-fi applications.

Featuring a unique spiral filament design, the 12AX7EH minimises hum caused by filament-to-cathode leakage, making it especially effective in amplifiers that use AC-powered filaments. Reliable and consistent, it’s a great choice for upgrading or replacing preamp tubes in a wide range of valve amplifiers.

Key Features:

• Single 12AX7 preamp tube
• High gain with detailed, musical tone
• Ultra low noise performance
• Spiral filament design reduces hum
• Ideal for guitar amps and audio applications
• Consistent and reliable construction