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NATIONAL 3580 Velvet Tube Tester Power Unit War

3580 National Vintage Velvet-b Tube Tester / Power Unit Type Pre-war

( Brand: National ), ( Manufacturer Part Number: 3580 ), ( Type: Tube Tester ), ( Unit Type: Unit )

Review NATIONAL Vintage Velvet b Tube Tester Power Unit Type Pre war

National 3580 Velvet-b Tube Tester Power Unit (Pre-War)

The National 3580 Velvet-b Tube Tester Power Unit, crafted in the pre-war era, is an exquisite artifact of technological innovation that continues to captivate audiophiles and electronics enthusiasts today. This vintage power unit, with its timeless design and exceptional functionality, is a testament to National's unparalleled craftsmanship during the golden age of American electronics.

The National 3580 Velvet-b Tube Tester Power Unit is equipped with a high-voltage power supply capable of handling a wide range of vacuum tubes. Its velvet-b designation indicates its ability to test both radio and audio tubes, making it a versatile tool for various applications. The power unit features a robust construction, with a sturdy metal casing that exudes a classic aesthetic, while ensuring durability and reliability over time.

The National 3580 Velvet-b Tube Tester Power Unit boasts an intuitive control panel, with clearly labeled knobs and switches that allow for easy and precise adjustments. The power unit includes a comprehensive set of test points and meters, enabling users to perform a thorough analysis of the vacuum tubes they are testing. With its precise and reliable performance, this power unit is an indispensable tool for those looking to maintain, restore, or repair vintage electronics.

In addition to its functional excellence, the National 3580 Velvet-b Tube Tester Power Unit is a collector's item, with its pre-war origin lending it a unique historical significance. Each unit carries the stories of the hands that crafted it, and the hands that have used it, making it a treasure for those who appreciate the rich history of electronics.

The National 3580 Velvet-b Tube Tester Power Unit is more than just a tool; it's a piece of history, a testament to American ingenuity, and a symbol of the enduring allure of vintage electronics. Whether you're a seasoned audiophile, a restoration enthusiast, or a collector, this pre-war power unit is a must-have addition to your collection.

The National 3580 Velvet-B Tube Tester Power Unit, a pre-war model, is an antique piece of audio testing equipment. Here are some pros and cons to consider before making a purchase:

Pros:

1. Historical Value: This unit is a pre-war model, which makes it a valuable piece of vintage electronics. Collectors might be interested in adding this to their collection.

2. Rare Find: Pre-war electrical equipment is relatively scarce, making this item an attractive find for those who appreciate rarity.

3. Testing Capabilities: The National 3580 Velvet-B Tube Tester Power Unit is designed to test and analyze vacuum tubes, which were commonly used in early radio, television, and sound equipment.

4. Potential for Restoration: For those with the skills, restoring this vintage piece could be a rewarding project.

Cons:

1. Age and Wear: The age of the unit means that it may have endured wear and tear, potentially leading to malfunctions or requiring repairs.

2. Limited Usefulness: While valuable as a collector's item, its practical use in modern electronics is limited, as vacuum tubes have largely been replaced by transistors and other solid-state devices.

3. High Cost: Given its rarity and historical value, the National 3580 Velvet-B Tube Tester Power Unit can be quite expensive.

4. Requires Expertise: Restoring and maintaining this vintage equipment requires a good understanding of electronics, potentially leading to additional costs for repairs or expert services.

Conclusion:

If you're a collector of vintage electronics or have a passion for restoring antique equipment, the National 3580 Velvet-B Tube Tester Power Unit could be a worthwhile investment. However, if you're primarily interested in practical use or cost-effectiveness, it may be more suitable to consider modern alternatives. It's advisable to thoroughly inspect the unit and understand its condition before making a purchase.

Details:

May require restoration or repair before use. Model: Velvet-B. Manufacturer: National Co. No guarantees of functionality.

Vintage National Velvet-B tube testing / power supply unit, Type 3580, manufactured in the mid-to-late 1930s. Specifications from nameplate. Frequency: 50 60 cycles. Please review all photos carefully they are part of the.

Internal components visible through openings. No cracks or major structural damage noted. Output: 35 millimetres at 180 volts . Input: 105 120 volts AC.

No attempt made to power on. This is vintage electrical equipment. Shows surface wear, dust, oxidation, and age-related patina. Alden, MA, USA.

Important Notes. These were used by radio technicians and laboratories for tube testing voltage supply, not consumer use. Cosmetic Condition. Heavy steel cabinet with original wrinkle / hammered finish.

NOT plugged in. Knobs present and original. Condition Testing. Original data plate intact and readable.

Sold strictly AS-IS. This unit was produced by National Co.

specifications tubesocketvintagego:

  • brand: National
  • mpn: 3580
  • type: Tube Tester
  • unit type: Unit

general tubesocketvintagego:

  • Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets
  • condition: For parts or not working

shipping tubesocketvintagego:

  • carrier: USPS
  • class: Standard
  • cost: $8.72
  • type: Calculated
  • service: USPS Ground Advantage
  • transit: 3-9 Days

returns tubesocketvintagego:

  • policy: No Returns

offer tubesocketvintagego:

  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: January 20, 2026

payments tubesocketvintagego:

  • credit card: Discover
  • wallet: Paypal
  • other

seller tubesocketvintagego:

  • city: West Barnstable, Massachusetts
  • rating: 98.7%
  • # reviews: 77
type: tube tester, unit type: unit,
category: electronics > vintage audio video > vintage parts accessories > vintage tubes tube sockets, sku: 10770322177715983,
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