Vacuum Tube - 12AX7 / CV4004, Mullard Reissue

Mullard Reissue
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Vacuum Tube - 12AX7 / CV4004, Mullard Reissue

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Mullard 12AX7 / CV4004 dual triode preamp tube. Made in Russa. The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. Great for guitar amps.

  • Short plate structure for reduced microphonics
  • Best for guitar amp circuits
  • 12AX7 / ECC83 valve equivalent
Item ID:
Mullard Reissue
Product Measurements
No measurements are currently available for this product. Please contact us if you have any questions.
Packaging Information
Packaging Dimensions2.75 in. × 1 in. × 1 in.
Weight (Packaging)0.035 lbs.

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Questions and Answers

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Asked by Anonymous on May 2nd, 2016.
May 3rd, 2016
Staff Member
Top Contributor
We do not test or screen the preamp tubes in house. All screening and testing would be done by the manufacturer.
Asked by Anonymous on September 6th, 2017.
Matt H
September 6th, 2017
Tube life will depend on how frequently you use your equipment and total hours of operation. Unfortunately we do not have any specs on how many hours this tube will last.
Asked by Anonymous on March 26th, 2019.
March 26th, 2019
Staff Member
The manufacturer of these tubes does not provide a data sheet for these atthis time.

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