TUNG SOL Gt Vacuum Tube Nos Valvola Hre Valve Single 25AX4

( Brand: Tung Sol ), ( Model: 25AX4 GT ), ( Type: Nos Tube ), ( Country/region Of Manufacture: United States )

Review TUNG SOL Vacuum Tube Nos Nib Valvola Hre Valve Single

The 25AX4 Tung-Sol GT Vacuum Tube NOs (New Old Stock) Valvola HRE Valve is a single-triode vacuum tube that is a must-have for any audio enthusiast or vintage electronics collector. This tube is manufactured by Tung-Sol, a renowned brand known for its high-quality vacuum tubes since the 1940s.

The 25AX4 is a general-purpose vacuum tube, suitable for use in a variety of applications such as audio amplifiers, oscillators, and radio receivers. It is equipped with a triode design, which allows it to amplify signals while maintaining a low output power. This makes it perfect for use in applications where low distortion and high frequency response are desired.

The 25AX4 Tung-Sol GT Vacuum Tube NOs Valvola HRE Valve is a NOS (New Old Stock) product, which means it is a re-issued tube that has been stored in a vacuum-sealed environment to preserve its quality. This tube is in its original un-used state, ensuring that it will deliver the same exceptional performance that Tung-Sol vacuum tubes are known for.

The Tung-Sol 25AX4 vacuum tube is a 9-pin vacuum tube with a base diameter of 1.6 inches and a height of 3.6 inches. It operates at a plate voltage of 300V and a grid voltage of -70V. The tube has a maximum plate current of 100mA and a maximum grid current of 10mA. It has a frequency response of 30 Hz to 15 kHz and a noise figure of 3.5 dB.

In summary, the 25AX4 Tung-Sol GT Vacuum Tube NOs Valvola HRE Valve is a high-quality, NOS vacuum tube that is perfect for use in a variety of audio applications. Its triode design allows it to deliver low distortion and high frequency response, making it a popular choice among audio enthusiasts and vintage electronics collectors. With its exceptional performance and vintage appeal, this tube is sure to add a unique touch to any audio system or vintage electronics project.

1. Authentic and Vintage: The 25AX4 Tung-GT vacuum tube is a vintage tube that was originally produced in the mid-20th century. Its use in modern audio equipment can provide a unique, warm, and rich sound that is hard to replicate with modern solid-state components.

2. Durability: Vacuum tubes are known for their durability and long lifespan. When properly maintained, they can last for many years, making them a cost-effective option in the long run.

3. Sound Quality: Vacuum tubes have a different sound character than solid-state components. They can provide a more natural, smooth, and dynamic sound that some people prefer over the harshness of solid-state amplifiers.

4. Collectibility: Vintage vacuum tubes can be collectible items, and some models can fetch high prices in the market. Owning a rare or hard-to-find tube can be a fun and rewarding hobby for audio enthusiasts.

1. Cost: Vintage vacuum tubes can be expensive, and the 25AX4 Tung-GT is no exception. The cost of the tube itself, as well as the cost of maintaining and replacing it, can add up over time.

2. Maintenance: Vacuum tubes require regular maintenance to ensure that they are functioning properly. This includes cleaning the glass, replacing the filament, and ensuring that the tube is properly aligned.

3. Fragility: Vacuum tubes are fragile and can be easily damaged. They can be easily broken if dropped, and they can be affected by changes in temperature and humidity.

4. Limited Availability: Vintage vacuum tubes can be hard to find, and some models may be out of production. This can make it difficult to find replacements if the tube breaks or needs to be replaced.

The 25AX4 Tung-GT vacuum tube is a high-quality, vintage tube that can provide a unique and rich sound in audio equipment. Its durability, sound quality, and collectibility make it an attractive option for audio enthusiasts. However, its cost, maintenance requirements, fragility, and limited availability are also important considerations. Ultimately, whether or not to buy the 25AX4 Tung-GT tube depends on your budget, audio preferences, and level of commitment to maintaining and using vintage equipment.

If you are an audio enthusiast and are looking for a vintage tube that can provide a unique sound character in your audio equipment, the 25AX4 Tung-GT vacuum tube is a worthwhile investment. However, be sure to research the tube's specifications and compatibility with your equipment before making a purchase. Additionally, be prepared to allocate resources for maintenance and potential replacements. With proper care and maintenance, the 25AX4 Tung-GT vacuum tube can provide a long-lasting and enjoyable audio experience.

Details:

All are nos nib and tested by me. Tube hunter vacuum gems these are the specifics of tubes for sale: manufacturer: Tung Sol production city: USA type: 25AX4 designation: rectifier year: month: date code match single silk screen condition: 100 mica: 2 plates: grey gm 120 pair quad multi: fetter: horseshoe fetter date: nos nib.

You can calibrate a vintage tube tester all want.

The lines show how tube conducts throughout that range. The curve tracer steps tried through 10 gate grid voltage s starting with 10 volts and going to 0.

This offer is for one tube. The tectonics curve tracer gives values within 3 of actual value.

I have a b k 747 tube tester.

I also use a tectonics curve tracer for testing tirades. I give those numbers for you in the item condition box. I will bend over backwards to make sure that you are a happy customer.

I don't check each and every tube for noise or tone. At volt the tube is max conduction and top line on display. It is easy at that point to take where top line intersects the plate voltage , find lamp level and compare data sheet. Do not handle the tubes or hold them from cylinder.

I will work with you in good faith if there are any problems, or unsatisfied way. I give a number of evaluations for tubes. It can be wiped off and destroyed very easily.

On all of them I have an outside regulated dc power supply that feeds the tube tester correct heater voltage . Vintage tube testers almost always, due to age, have very low heater voltage s.

The very best portable testers only can approach 10 accuracy. One evaluation is a screen shot of the tube with high voltage applied to plate.

They say have a calibrated tube tester. This is an honesty issue. And all the angels sang because heavenly music was playing it turned way up. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester.

Testing: I test all tubes that sell in one way or another, will state untested. It give a percentage value of gm for the tube under test and checks shorts grid emissions. I have 40 tube testers.

If you wipe off the silkscreen while handling tube diminish their value by up to this is subjective and it too time consuming. These tubes are nos nib. The voltage needs to be 6.

Sound quality is tremendously subjective. If you are buying only one item this will not be an issue.

They average 5.

On my tester a b k 747 tester: below 55 bad 55-65. Every tester I have ever bought is below 6 volts when selecting.

All tubes are tested for shorts, continuity, and emissions. This is a mutual conductance tester. Always hold them from the ends.

part #: 25ax4 prices

• $11.86-$31.20

specifications tubesocketvintagego:

• brand: Tung Sol
• model: 25ax4 Gt
• type: Nos Tube
• country/region of manufacture: United States

Seller tubesocketvintagego:

• zipcode: 85354
• city: Tonopah, Arizona

General tubesocketvintagego:

• in stock: Yes
• consumer electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio

Payments tubesocketvintagego:

• PayPal

Returns tubesocketvintagego:

• type: Money Back
• paid by: Seller
• policy: returns accepted
• time: 30 Days

Shipping tubesocketvintagego:

• type: Flat
• handling: 1 days
• cost: $0.0

Offer tubesocketvintagego:

• bids: 0
• quantity: 2
• best offer: false
• Sold: 0
• Started: August 17, 2018, 11:14 am

Ratings:

1. Exactly as described, well packaged fast shipping AA 08-16-18
2. A Fast Shipping 08-15-18
3. Fast shipping, great condition and fair price. I would do business with again. 08-16-18
4. Item as described prompt delivery and very well packaged. Thanks 08-15-18
5. Thank you for an easy, pleasant transaction. Excellent buyer.. 08-16-18

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