12AU7 (also ECC82) Preamp Vacuum Tube

Medium-Mu twin triode for use in preamplifier and driver circuits.

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EHX: Vacuum Tubes
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EHX FLASHBACK POSTER
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EHX Tubes/Valves
Did you know that Electro-Harmonix makes many of the world's greatest vacuum tubes? The next time you need to re-tube your guitar, bass, or hi-fi amp, be sure to insist on getting authentic Electro-Harmonix tubes.
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Gold Pin Preamp Tube
EHX Strings with Feelings
Our new EH Strings allow you to capture every nuance of your playing style with lightning fast playability. Made of a pure nickel wrap with a specially-selected stainless steel, these sweet-sounding round wounds are truly like no other strings you've played. Not only do they last longer and stay in tune longer, but we think they're the best sounding strings ever made. Available in 9s, 10s and 11s.
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EHX Hoodie