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Electro-Harmonix has added the 12AX7EH preamp tube for guitar amplifiers to its line of premium quality vacuum tubes. Electro-Harmonix sound effects are world renowned for the soulful warmth of their analog sound and the new 12AX7EH continues this legacy of classic tone.
Electro-Harmonix tube engineers took the high gain, low-noise, ultra-linear designs of the classic Mullard and Telefunken tube-types and added a tad of tasteful second-order harmonics to create the new 12AX7EH - their finest preamp tube designed specifically for guitar amp applications. The 12AX7EH's special plate design results in super-low microphonics balanced with high gain. The unique spiral filament eliminates filament to cathode induced hum common on amps that use AC on the filaments.
For more information, visit their web site at www.ehx.com