MULLARD 55HJ78 Hammond Vacuum Preamp Tube Blackburn 12AX7

( Brand: Mullard ), ( Manufacturer Part Number: 55HJ78 ), ( Type: Vacuum Tube ), ( Unit Type: Unit )

Review MULLARD Used Hammond Branded Vacuum Preamp Tube Blackburn

Mullard 55HJ78 Hammond 12AX7 Vacuum Preamp Tube by Blackburn

Experience the harmonious blend of classic and modern with the Mullard 55HJ77 Hammond 12AX7 Vacuum Preamp Tube by Blackburn. This esteemed tube, known for its black finish, is a testament to the enduring legacy of Mullard and Hammond, two revered names in the audio industry.

The 12AX7 tube is a dual triode that has been a staple in high-fidelity audio circuits for decades, appreciated for its exceptional warmth and clarity. The Mullard 55HJ78, crafted by Blackburn, offers a unique twist to this timeless design.

The Mullard 55HJ78 tube is meticulously engineered to deliver a rich, full-bodied sound that is both nuanced and powerful. Its vacuum-based construction ensures a consistent and reliable performance, while the black finish adds a touch of sophistication to any audio setup.

Blackburn, a respected manufacturer known for their dedication to quality and authenticity, has taken great care in the production of this tube. Each Mullard 55HJ78 is carefully tested to meet the high standards set by both Mullard and Blackburn, ensuring that you receive a tube that lives up to its pedigree.

Incorporating a Mullard 55HJ78 Hammond 12AX7 Vacuum Preamp Tube by Blackburn into your audio setup is more than just a simple upgrade; it's a testament to your love for music and your dedication to audio excellence. Whether you're a seasoned audiophile or a music enthusiast just starting your journey, this tube is a worthy addition to your collection.

Embrace the legacy of Mullard and Hammond, and experience the difference that the Mullard 55HJ78 Hammond 12AX7 Vacuum Preamp Tube by Blackburn can bring to your audio system.

Mullard 55HQ7, Hammond 12AX7, and Blackburn Audio VT-129-S are all high-quality vacuum preamp tubes suitable for various audio applications. Here's a comparison of the three tubes, considering their pros, cons, and a concluding recommendation.

1. Known for their smooth and warm sound quality.

2. Excellent for guitar amplifiers, hi-fi preamps, and vacuum tube-based effects pedals.

3. Reliable and durable construction

1. Slightly more expensive compared to other brands.

2. May require a break-in period for optimal performance

1. Affordable price point compared to other brands.

2. Balanced sound quality, great for clean and distorted tones.

3. Wide availability in various circuits and applications.

1. Lower build quality compared to some other brands, particularly Mullard.

2. May exhibit a higher level of noise in some applications.

1. High-quality construction, with a long-lasting glass envelope and metal base.

2. Warm and musical tone that works well in various audio applications.

3. Improved filament design for longer life and reduced noise.

1. More expensive than the Hammond 12AX7.

2. May not be as widely available as other brands.

If budget is not a concern, the Mullard 55HQ7 offers excellent sound quality and reliable performance. For those who are looking to save a few dollars, the Hammond 12AX7 is a good choice, although it may not provide the same level of sophistication as the Mullard tube. The Blackburn Audio VT-129-S offers a nice balance between the two, combining high-quality construction with a musical tone.

Based on sound quality, reliability, and overall performance, the Mullard 55HQ7 is our top recommendation. However, for budget-conscious users, the Hammond 12AX7 is a decent alternative, while the Blackburn Audio VT-129-S is a solid choice for those seeking a high-quality tube with a musical tone.

Details:

Vintage Mullard 12AX7 etched for Blackburn from the early 60s. Pulled from an organ and tested with a very basic, mercury model 1100 emission tester. Both sides tested equally strong with no shorts.

part #: 55hj78 prices

• $150.00-$179.99

specifications tubesocketvintagego:

• brand: Mullard
• mpn: 55hj78
• type: Vacuum Tube
• unit type: Unit

seller tubesocketvintagego:

• # reviews: 94
• rating: 0.0%
• city: North Canton, Ohio

offer tubesocketvintagego:

• sold: 0
• best offers: True
• started: December 16, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock

returns tubesocketvintagego:

• method: Money back
• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

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shipping tubesocketvintagego:

• transit: 10-10 Days
• class: Standard
• carrier: USPS
• type: Calculated
• cost: $5.15
• service: USPS Ground Advantage

general tubesocketvintagego:

• Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets
• condition: Used

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