Electro Harmonix 12AX7 Tube
The Electro-Harmonix 12AX7EH is a preamp tube that provides high gain with ultra low noise. A unique spiral filament eliminates the filament-to-cathode induced hum common on amps that use AC on the filaments. It is also a great choice for problematic amps that feedback too easily. The Electro-Harmonix 12AX7EH is a very well balanced preamp tube in terms of overall tone. Made in Russia.