Electro Harmonix EHX 12AU7 (ECC82) Preamp Valve/Tube


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



Electro Harmonix EHX 12AU7 (ECC82)


Manufacturer’s Description

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

My Description

These units are premium hand tested in my Nottinghamshire workshop to ensure consistency. You’ll receive an individual test certificate with the valve.

The 12AU7 (or ECC82 if you’re a Brit) can be used for greater headroom in place of the ubiquitous 12AX7. They’re often used as phase inverters drivers where they yield a great clean tone.

I’ve used these EHX valves on hundreds of amps and found them to work brilliantly. They’re made in the same Russian factory as the high end Tung Sol valves but don’t come with the high end price.

About Keld Ampworks

I run an independent repair workshop, repairing valve amplifiers and doing guitar amp repair for customers in the East Midlands and across the UK. I sell valves and guitar based electronics on ebay, only offering products that I’m confident I would use in my own amplifiers.


If you’re wondering whether this product would suit your amplifier, please just drop me a line for some advice. I’ve installed hundreds of new valves in guitar and bass amps and there’s nothing I like more than talking about it!

Additional information

Weight 0.05 kg
Dimensions 130 × 40 × 40 mm

Factory Tested, Premium Tested


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