Mullard CV4004 / 12AX7 New Production Preamp Vacuum Tube


The new production Mullard CV4004 / 12AX7 is a high gain, low noise 12AX7 variant with a short plate structure for reduced microphonics excellent for use in high gain Marshall pre-amplifier circuits or any combo amp where noise and microphonics can be a problem.

Price is for a single tube with standard testing.

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    This is my favorite new production tube! I’m running this in my Silverface Champ and it’s the closest to the JAN tube that was in it when I bought it.

    reviewed by: Nick

    I used these in a JTM45 in V1 and V2, very nice sounding pre amp tubes, lots of growl.

    reviewed by: Rocky Singleton