SYLVANIA 721-A Wwii Collectible Radar Tr Spark Gap Tube

( Brand: Sylvania ), ( Model: 721-A ), ( Type: Gas Filled Spark Gap Tube ), ( Country/region Of Manufacture: United States )

Review SYLVANIA Vintage Wwii Collectible Radar Spark Gap Tube

The 721-A WWII collectible Sylvania Radar TR Spark Gap Tube is a captivating relic of technological innovation and historical significance. This tube, manufactured by Sylvania, a renowned American electronics company, was a critical component in the development and operation of early radar systems during World War II.

The 721-A tube is a spark gap device, which, in the context of radar technology, was used to generate high-voltage, high-frequency electrical discharges. This discharge was essential in the propagation of radar signals, enabling the detection and tracking of enemy aircraft and ships. The tube measures approximately 12 inches in length and 2.5 inches in diameter, with a weight of approximately 6 pounds.

The exterior of the tube is finished in a matte black enamel, which not only provides a sleek aesthetic but also protects the internal components from environmental factors. The tube features a robust, cylindrical design with a threaded base, allowing it to be securely mounted in various radar systems.

Inside the tube, the spark gap mechanism is housed within a glass bulb, surrounded by a vacuum. This design ensures that the spark discharge is maintained with minimal energy loss, resulting in efficient and powerful radio frequency (RF) transmissions. The spark gap mechanism consists of two metal electrodes separated by a small gap, which is maintained by a high voltage applied across them. When the voltage reaches a certain threshold, a spark jumps across the gap, creating the RF transmission.

Collecting a 721-A WWII Sylvania Radar TR Spark Gap Tube is not just about acquiring a historical artifact; it's about connecting with the past and appreciating the role that such technology played in shaping the world we live in today. This tube is a testament to the ingenuity and perseverance of the engineers and scientists who developed it, and it serves as a reminder of the pivotal role that technology has in shaping human history.

1. Historical Significance: This tube was used in radar systems during World War II, making it a significant piece of history. Collecting such artifacts can be a great way to learn about the past and pay tribute to those who served.

2. Rarity and Value: As a vintage component, the 721-A tube is likely to be a rare find. Its scarcity can make it a valuable addition to a collection, potentially increasing in value over time.

3. Educational Opportunity: Studying and understanding the workings of this tube can provide a unique educational experience, especially for those interested in electronics, engineering, or history.

1. Limited Usability: Due to its age and the technology it represents, the tube may not have any practical use in modern electronics.

2. Fragility and Preservation: Vintage electronics can be delicate and require careful handling to avoid damage. Proper storage and preservation methods are essential to maintain the tube's condition.

3. Cost: The rarity and potential value of the tube can also make it expensive. It's essential to ensure that the price is fair and in line with market trends.

Buying a 721-A WWII collectible Sylvania radar spark gap tube can be a rewarding experience for history and electronics enthusiasts. However, it's crucial to consider the tube's limited usability, fragility, and potential cost. Proper research, understanding, and care are essential to ensure that the purchase is a worthwhile investment.

If you're interested in collecting historical electronics or learning more about WWII technology, the 721-A tube could be a fascinating addition to your collection. However, it's recommended to thoroughly research the seller, the tube's condition, and its market value before making a purchase. Additionally, be prepared to handle and store the tube with care to preserve its historical significance and potential value.

Details:

Built in 1942 new original box as shipped to the us navy. Vintage wwii collectible Sylvania radar spark gap tube.

part #: 721 prices

• $7.96-$24.97

specifications tubesocketvintagego:

• brand: Sylvania
• model: 721-a
• type: Gas Filled Spark Gap Tube
• country/region of manufacture: United States

Returns tubesocketvintagego:

• policy: no returns

Ratings:

1. Item as described. Shipped quickly. Thanks!! 12-23-16
2. Thanks shipped quickly. A 12-22-16
3. tube well packed and arrived in good shape 12-23-16
4. thanks 12-22-16
5. Great packing and quick shipping! 12-22-16

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General tubesocketvintagego:

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

Shipping tubesocketvintagego:

• cost: $0.0
• type: Flat
• handling: 2 days

Seller tubesocketvintagego:

• zipcode: 55422
• city: Minneapolis, Minnesota

Offer tubesocketvintagego:

• min. bid: $12.00
• Sold: 0
• quantity: 1
• bids: 0
• best offer: false
• Started: December 24, 2016, 10:38 am

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