The Electro Harmonix 12AX7 Gold Pin offers improved contact with the tube socket. The 12AX7EH provides high gain with ultra low noise. Very detailed and musical which can rival desirable NOS tubes. Spiral filament eliminates filament to cathode induced hum common to AC powered amps. Excellent for preamp sections, driver sections and phase inverters. An all around winner!
Single Tube - Made in Russia