CURTIS MATHES / RCA 6BK4B Fi Hickok Nos Tube

( Brand: Curtis Mathes / Rca ), ( Model: 6BK4B ), ( Type: Nos Tube ), ( Country/region Of Manufacture: United States )

Review CURTIS MATHES / RCA Fi Hickok Nos Tube Strong Lot Tested

The 6BK4B FI Hickok RCA Mathes NOS Curtis Tube is a vintage electronic component that is highly sought after by audiophiles and electronics enthusiasts. This tube is a dual triode, meaning it has two active elements in a single glass envelope, which allows for both amplification and frequency selection.

The 6BK4B is a low-mu (micro-megaohm) audio tube, which means it has a low input impedance and a high gain. This makes it ideal for use in radio receivers, preamplifiers, and other audio applications where a high gain and low distortion are required. The FI designation stands for "fixed impedance," which means the tube has a fixed resistance between its grid and plate, making it easier to match with other components in a circuit.

The Hickok RCA Mathes NOS Curtis Tube is a New Old Stock (NOS) item, which means it is a brand new tube that has been manufactured to the original specifications and has been sitting in storage for many years. This means that it has not been used or tested, and it is in its original sealed packaging. This can make it a valuable collector's item, as well as a reliable and high-performing electronic component.

The glass envelope of the 6BK4B is made of borosilicate glass, which is heat-resistant and can withstand high voltages. The metal components of the tube are made of high-quality materials, including nickel and tungsten, which are resistant to corrosion and oxidation. The tube is also coated with a vacuum-deposited metallic film, which helps to reduce noise and improve signal quality.

Overall, the 6BK4B FI Hickok RCA Mathes NOS Curtis Tube is a high-quality and reliable electronic component that is ideal for use in audio applications. Its low-mu design, fixed impedance, and high gain make it a valuable addition to any vintage audio system, and its NOS status makes it a collectible item as well. Whether you are a serious audiophile or a casual electronics enthusiast, this tube is sure to impress with its sound quality and vintage charm.

1. Authenticity: Buying a new old stock (NOS) tube ensures that you're getting an original, unopened tube that has been in storage for decades.

2. Quality: NOS tubes are often of higher quality than modern tubes due to the manufacturing methods used in the past.

3. Sound Quality: Tubes can greatly impact the sound quality of audio equipment, and a high-quality tube like the 6BK4B can improve the clarity and depth of sound.

4. Collectibility: Vintage tubes like the 6BK4B are collectible items, and their value can appreciate over time.

1. Cost: NOS tubes can be expensive, especially for rare or hard-to-find models.

2. Compatibility: Not all modern audio equipment is compatible with vintage tubes, so you may need to invest in additional equipment to use the tube.

3. Maintenance: Tubes require regular maintenance and replacement, which can be time-consuming and expensive.

4. Availability: NOS tubes are not always readily available, and you may need to search for them online or at specialty stores.

If you're an audiophile or collector, buying a 6BK4B FI Hickok RCA Mathes NOS Curtis tube can be a worthwhile investment. The improved sound quality and collectibility can make it a worthwhile addition to your audio system. However, the high cost and potential compatibility issues should be considered before making a purchase. It's also important to research the tube and its compatibility with your equipment before making a purchase.

Before buying a 6BK4B FI Hickok RCA Mathes NOS Curtis tube, research the tube and its compatibility with your audio equipment. Consider the cost and potential maintenance requirements, and weigh those against the improved sound quality and collectibility. If you decide to purchase, be sure to buy from a reputable seller to ensure the tube is authentic and in good condition.

Details:

A jet's tubes and electronics 100 guaranteed for your satisfaction tubes one 6BK4B Curtis Mathes hi fi tube made by Rca 274 mfg. All tubes fully tested for mutual conductance, continuity, shorts, gas and leakage where applicable.

The second time is a quick test just before I pack them to ship to you.

The first test is with tubes at operating temperature and usually a 30 second load. Most popular. Code nos 60 day guarantee hickok tested very strong mutual conductance gm tried test 125 average spec 75 minimum 48 notes on testing and quality control tested on either my 605a or my 532 which have both been calibrated and are frequently cross checked to maintain calibration.

The tubes you see are tested twice. To cover the cost of shipping materials.

It takes a lot of time to do it this way but it is best that you know you are getting what you paid for.

part #: 6bk4b prices

• $8.00-$31.49

specifications tubesocketvintagego:

• brand: Curtis Mathes / Rca
• model: 6bk4b
• type: Nos Tube
• country/region of manufacture: United States

Seller tubesocketvintagego:

• city: Pittston, Pennsylvania
• zipcode: 18643

Returns tubesocketvintagego:

• paid by: Seller
• type: Money Back
• details: Restocking fee: No
• policy: returns accepted
• time: 60 Days

General tubesocketvintagego:

• Consumer Electronics > Vintage Electronics > Vintage Audio & Video > Vintage Parts & Accessories > Vintage Tubes & Tubes Sockets
• in stock: Yes

Payments tubesocketvintagego:

• PayPal

Shipping tubesocketvintagego:

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

Ratings:

1. excellent 100% excellent product A+ 05-12-16
2. great seller highly recommended 05-12-16
3. Thank for safe package +++ 05-07-16
4. Fast shipping great deal as described. Would purchase again. 05-15-16
5. Item as described. Friendly & fast service. Recommended. 05-12-16

Offer tubesocketvintagego:

• # Sold: 0
• # bids: 0
• best offer: false
• Started: May 16, 2016, 3:20 am
• quantity: 1

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