Musical Instrument Amplifiers › Electro-Harmonix › Preamplifier › Tube

The Electro-Harmonix 12AX7EH is a preamp tube that provides high gain with ult... The Electro-Harmonix 12AX7EH is a preamp tube that provides high gain with ultra low noise. The tube s detailed musical tone rivals the most desirable NOS types. Unique spiral filament eliminates the filament-to-cathode induced hum common on amps that... more