
( Brand: Mullard ), ( Model: 12AX7/CV4004 ), ( Type: Vacuum Tube ), ( Country/region Of Manufacture: Britain )
The CV4004-M8137 NOS Mullard 12AX7 Vacuum Tube is a high-quality, vintage component that is sure to impress any audio enthusiast. This 12AX7 tube is a replacement for the classic Mullard 12AX7, and it is manufactured using the same techniques and materials as the original to ensure the same level of performance.
The CV4004-M8137 tube is housed in a sturdy box plate vacuum tube, which is designed to protect the delicate internal components from damage. The tube features a glass envelope, which is vacuum-sealed to prevent oxygen and moisture from entering and degrading the internal components. The tube is also shielded, which helps to reduce electrical interference and improve the signal-to-noise ratio.
The 12AX7 tube is a dual triode vacuum tube, which means it contains two separate amplifying stages. This makes it a versatile component that can be used in a wide range of audio applications, including preamps, power amps, and even some types of effects pedals. The tube is known for its warm, smooth sound, which is ideal for vocals, guitar, and other instruments.
The CV4004-M8137 tube is a NOS (New Old Stock) component, which means it is a newly manufactured tube that has been stored in a controlled environment since its production. This ensures that the tube is in pristine condition and has not been exposed to the elements or other contaminants that can degrade the performance of a tube over time.
In summary, the CV4004-M8137 NOS Mullard 12AX7 Vacuum Tube is a high-quality, versatile component that is ideal for audio enthusiasts who value vintage sound and reliable performance. Its sturdy box plate vacuum tube, shielded design, and warm, smooth sound make it a great choice for a wide range of audio applications.
Pros of buying CV4004-M8137 NOS Mullard 12AX7 Vacuum Tubes:1. Authenticity: These are New Old Stock (NOS) tubes, which means they are vintage tubes that have been stored unused since their manufacture date. They are original Mullard tubes, which are renowned for their high-quality sound.
2. Reliability: NOS tubes are often considered more reliable than modern tubes, as they have not been exposed to the harsh conditions of modern manufacturing processes.
3. Sound Quality: Vacuum tubes are known for their warm, rich sound, and 12AX7 tubes are particularly popular for their versatility. With their original Mullard manufacturing, these tubes are expected to produce a high-quality sound.
4. Vintage Appeal: Vacuum tubes have a classic look and feel that can add a touch of vintage charm to any audio equipment.
Cons of buying CV4004-M8137 NOS Mullard 12AX7 Vacuum Tubes:1. Price: NOS tubes can be more expensive than modern tubes, due to their scarcity and high demand.
2. Availability: Finding specific NOS tubes, such as the CV4004-M8137, can be challenging, as they may be out of production or in limited supply.
3. Compatibility: While 12AX7 tubes are widely used, some audio equipment may require specific types of tubes to function optimally. It's essential to check the compatibility of these tubes with your audio equipment before purchasing.
4. Maintenance: Vacuum tubes require more maintenance than solid-state components, including regular cleaning and replacement of filaments.
Conclusion: If you're looking for high-quality sound, vintage appeal, and a reliable component for your audio equipment, then the CV4004-M8137 NOS Mullard 12AX7 Vacuum Tubes could be an excellent choice for you. However, consider the potential drawbacks, such as price and maintenance requirements, before making a purchase.
Recommendation: Before purchasing, research the specific requirements of your audio equipment and ensure that these tubes are compatible. Also, consider the price and whether the potential sound quality and vintage appeal are worth the additional investment.
We even guarantee our tubes to arrive without having any sound-quality issues like micro phonics or noise.
A truly nos tube will have excellent fetter flashing condition, no dirt grime, usually in the original box, and filament deposits.
Britain visible date codes: wag kb641 r5d2 lettering condition: 90 percent number of mica spacers: 2 spacer shape: saw glass coating: clear engraved base. No boxes always included: all original notes: gain: tested for matched by: gm gain on a maxi-marcher preamps real world voltage s test results: minimum good value: nos life calculation: where fail tests as nos?: yes true nos.
What started as a hobby several years ago to fund my obsession with tube audio, viva tubes has quickly grown into full time business.
We mainly use the Hickok TV-7d u, but occasionally may a 539, 533a, or 600a.
Rates: for domestic USA buyers shipping the first tube, pair, or quad will cost 4. Plate construction: grey box fetter top o country manufacture: gt.
0, maxi-marcher many more.
Other options available only by request.
Always checked for shorts, leaks, gas and gm, emissions or plate current where applicable.