SYLVANIA 12BH7A Vacuum Tubes

( Brand: Sylvania ), ( Model: 12BH7A ), ( Type: Vacuum Tube ), ( Country/region Of Manufacture: United States )

Review SYLVANIA Vacuum Tubes Various Brands Tested Good

The 12BH7A vacuum tubes by Sylvania are a classic and reliable choice for audio enthusiasts and vintage electronics enthusiasts alike. These tubes are designed to deliver high-quality sound and are commonly used in various audio applications, such as preamplifiers, power amplifiers, and hi-fi equipment.

The 12BH7A vacuum tubes are dual triode tubes, which means they have two active elements within the same glass envelope. This design allows for greater flexibility in circuit design and can help achieve a rich, full-bodied sound. The tubes are rated for a plate voltage of 350 volts and a plate current of 250 milliamperes, providing a good balance of power and efficiency.

The Sylvania 12BH7A vacuum tubes are known for their excellent sound quality, with a warm, rich tone that is highly sought after in audio applications. They have a low noise floor and a high signal-to-noise ratio, which helps to ensure that the music or audio signal being amplified is clear and free from distortion.

The tubes have a glass envelope that is made to be resistant to vibration and shock, which helps to ensure that they can withstand the rigors of use in audio equipment. The filament is made of tungsten, which is a durable and long-lasting material that can provide hundreds of hours of use before needing to be replaced.

Overall, the 12BH7A vacuum tubes by Sylvania are a high-quality and reliable choice for anyone looking to add vintage warmth and character to their audio equipment. They are easy to use and maintain, and their durable construction means that they can provide many hours of use before needing to be replaced. Whether you are a seasoned audio enthusiast or just starting out, the 12BH7A vacuum tubes by Sylvania are a great addition to any audio system.

1. High Quality: Sylvania is a well-known brand in the vacuum tube industry, known for its high-quality products. The 12BH7A tubes are designed to provide excellent performance and reliability.

2. Wide Application: These tubes are suitable for a wide range of applications, including audio amplifiers, radio receivers, and other electronic devices.

3. Long Lifespan: Compared to modern solid-state components, vacuum tubes have a longer lifespan. With proper care, the 12BH7A tubes can last for many years.

4. Warm and Rich Sound: Vacuum tubes produce a unique and desirable sound that is often preferred by audiophiles. The 12BH7A tubes are no exception and can provide a warm, rich, and detailed sound.

1. Higher Cost: Vacuum tubes, including the 12BH7A, are generally more expensive than solid-state components. This may be a significant disadvantage for budget-conscious consumers.

2. Requires Maintenance: Vacuum tubes require regular maintenance to ensure proper functioning. This includes regular cleaning, checking for leaks, and replacement of filaments.

3. Less Efficient: Vacuum tubes are less energy-efficient than solid-state components. This may result in higher energy consumption and increased heat production.

4. Limited Availability: Vacuum tubes, including the 12BH7A, are not as widely available as solid-state components. This may make it more difficult to find replacements or repair parts if needed.

The Sylvania 12BH7A Vacuum Tubes offer several advantages, including high quality, wide application, long lifespan, and warm and rich sound. However, they also have some disadvantages, such as higher cost, maintenance requirements, lower efficiency, and limited availability.

If you are an audiophile who values the unique sound quality that vacuum tubes provide, and you are willing to pay a premium for high-quality components, then the Sylvania 12BH7A Vacuum Tubes may be a good choice for you. On the other hand, if you are looking for a more affordable and low-maintenance option, then solid-state components may be a better choice.

Before making a purchase, it is important to consider your specific needs and preferences. If you are interested in the Sylvania 12BH7A Vacuum Tubes, I recommend doing some research to ensure that they are the best fit for your application. Consider factors such as cost, maintenance requirements, energy consumption, and availability of replacement parts. Additionally, it may be helpful to listen to audio samples or consult with an audio expert to get a better sense of the sound quality that the tubes can produce.

Details:

Tubes from an estate sale someone who worked for Boeing and knew a lot about. All listed tubes tested good. Sylvania i'm not an expert but I did purchase a tester. All tubes tested on a bk 667 solid state tube tester for shorts, leakage, and quality.

part #: 12bh7a prices

• $28.00-$140.00

specifications vintaelec:

• brand: Sylvania
• model: 12bh7a
• type: Vacuum Tube
• country/region of manufacture: United States

Shipping vintaelec:

• cost: $8.0
• type: Flat
• handling: 4 days

Returns vintaelec:

• policy: no returns

Payments vintaelec:

• PayPal

Ratings:

1. Great 02-28-19
2. items received safely - well packed. Fast shipping. 01-19-19
3. QuickThank you. 02-07-19
4. items well packed - received safely. 01-24-19
5. Speedy Secure Shipper of Fine QualityA#1, 02-27-19

General vintaelec:

• Vintage Parts Accessories > Vintage Tubes Tube Sockets
• in stock: Yes

Offer vintaelec:

• Sold: 0
• Started: March 2, 2019, 11:34 pm
• bids: 0
• min. bid: $20.00
• best offer: false
• quantity: 1

Seller vintaelec:

• zipcode: 59047
• city: Livingston, Montana
• rating 03-03-19: 100.0%
• # feedbacks 03-03-19: 622

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