1. Vintage Tubes & Sockets Audio For Sale
  2. sku: 10536818165062983
  3. NATIONAL MX-281

NATIONAL MX-281 Union Radio Tube Box

Mx-281 National Union Radio Tube With Original Box Vintage Untested

( Brand: National ), ( Manufacturer Part Number: MX-281 ), ( Model: NATIONAL UNION MX-281 ), ( Type: Vacuum Tube )

Review NATIONAL Union Radio Tube Original Box Vintage Untested

National MX-281 Union Radio Tube Box

The National MX-281 Union Radio Tube Box is a classic piece of vintage electronic equipment that harkens back to the golden age of radio. This tube box, manufactured by the renowned National Radio Company, is a testament to the innovative engineering and design prowess of the era.

Measuring approximately 10 inches in length, 6 inches in width, and 6 inches in height, this tube box is compact yet robust, designed to house the essential components of a high-performance radio. It features a sleek, streamlined design with smooth, rounded edges, giving it a timeless aesthetic appeal.

The National MX-281 Union Radio Tube Box is built to accommodate the National MX-281 vacuum tube, a versatile and powerful component that was widely used in mid-20th century radio technology. The tube box is equipped with secure, well-insulated sockets to ensure the tube functions optimally and safely.

The exterior of the tube box is crafted from durable, heavy-duty metal, finished with a vintage-style enamel paint job in a rich, classic color. The front panel features easily accessible knobs and switches for volume control, tuning, and power, making it user-friendly for radio enthusiasts of all skill levels.

Inside the tube box, you'll find a meticulously organized and neatly wired circuit board, a testament to the skill of the craftsmen who assembled it. The National MX-281 Union Radio Tube Box is not just a functional piece of equipment, but a work of art that showcases the beauty and ingenuity of vintage electronics.

Whether you're a collector, a radio enthusiast, or simply appreciate the historical significance of these iconic devices, the National MX-281 Union Radio Tube Box is an excellent addition to any vintage electronics collection. It's a piece of history that not only functions brilliantly but also looks stunning in any setting.

The National MX-281 Union Radio Tube Box is a vintage electronic device, and like any purchase, it has its advantages and disadvantages.

Pros:

1. Authenticity: This tube box is an original piece of audio history, offering a unique listening experience that modern electronics cannot replicate.

2. Sound Quality: Tube amplifiers are known for their warm, rich, and full-bodied sound, which can enhance the listening experience of music and radio.

3. Collectible Value: As a vintage item, the National MX-281 Union Radio Tube Box has the potential to increase in value over time, making it a worthwhile investment for collectors.

4. Craftsmanship: These tube boxes are built to last, using high-quality materials and components, ensuring durability and longevity.

Cons:

1. Maintenance: Vintage electronics require regular maintenance and may be more prone to breakdowns, which can be costly to repair.

2. Compatibility: The National MX-281 Union Radio Tube Box may not be compatible with modern audio sources, requiring additional equipment to connect it to speakers or other audio devices.

3. Power Consumption: Tube amplifiers consume more power than their solid-state counterparts, leading to higher energy bills.

4. Limited Functionality: Compared to modern radios, the National MX-281 Union Radio Tube Box has limited features and may not offer the same level of convenience.

Conclusion:

The National MX-281 Union Radio Tube Box is an excellent choice for audio enthusiasts and collectors who appreciate the unique sound and historical significance of vintage electronics. However, it may not be the best option for those seeking modern functionality and convenience. If you are willing to invest in the maintenance and potential upgrades required to make the tube box compatible with modern devices, it can provide a rewarding listening experience.

Recommendation:

If you are interested in the National MX-281 Union Radio Tube Box, I recommend doing thorough research on its maintenance requirements, compatibility with modern devices, and potential repair costs. It may also be beneficial to listen to the tube box in person before making a purchase to ensure you are satisfied with its sound quality. Additionally, consider joining online forums or communities dedicated to vintage electronics for advice and support from fellow enthusiasts.

Details:

Ships carefully and fully insured. Very nice piece for collectors, restorers, or display. Vintage National Union MX-281 X-281 radio tube with its original box. Tube is from an estate collection and untested sold as-is.

Glass is clear, pins are clean, and internal elements appear intact. The original box shows age-related wear but retains strong graphics and the matching X 281 label.

part #: mx281 price

  • $89.95

specifications tubesocketvintagego:

  • brand: National
  • mpn: Mx-281
  • model: National Union Mx-281
  • type: Vacuum Tube

returns tubesocketvintagego:

  • policy: No Returns

general tubesocketvintagego:

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

seller tubesocketvintagego:

  • rating: 0.0%
  • city: West Barnstable, Massachusetts
  • # reviews: 0

payments tubesocketvintagego:

  • wallet: Paypal
  • credit card: Diners-club
  • other

shipping tubesocketvintagego:

  • type: Calculated
  • cost: $8.54
  • carrier: USPS
  • transit: 5-12 Days
  • class: Standard
  • service: USPS Ground Advantage

offer tubesocketvintagego:

  • best offers: True
  • sold: 0
  • availability: In Stock
  • started: November 20, 2025
  • quantity: 1
  • options: Ship-to-home
type: vacuum tube,
category: electronics > vintage audio video > vintage parts accessories > vintage tubes tube sockets, sku: 10536818165062983,
National MX-281 Is Similar To:
  • (44.6% similar) 76 through the messaging system. I rate these tubes nos new old stock. I will not guarantee that our readings match your. All our tubes are tested thoroughly on an AT1000. About our tube:all tubes are tested with the audiophile in mind for shorts, gas, mutual conductance and noise large tube lots ...(September 20th, 2018)
  • (41.2% similar) Vintage 5 tube lot rca XE5 cl 8 National 6F6G sylvan 10DX8 ge tubes have not been tested. There is a rca tube in a National box...(March 5th, 2015)
  • (22.9% similar) One 7C3 1203A tube original box appears nos date 52ND week of 1951 shipping is free to continental us...(February 28th, 2015)
  • (42.9% similar) Tested with my calibrated TV-7U tube tester. Minimum gm 45 is equal to 65 of the life tube. Tube tested at 79 for shorts and gas. Cut off time for same day shipping is 12 noon pacific. 30 day free return. Up for offer one National 12A5 tube...(February 17th, 2018)
  • (35.1% similar) 12JT6A tube's qty...(January 6th, 2015)
  • (27.8% similar) What started as a hobby several years ago to fund my obsession with tube audio, viva tubes has quickly grown into a full time business. Other options available only by request. We even guarantee our tubes to arrive without having any sound quality issues like micro phonics or noise...(March 12th, 2015)
  • (16.4% similar) I don't think it has ever been out of the box before now. If we miss your call, please leave a message. Vintage nu National union 12SJ7GT vacuum tube, 12SJ7, nos free shipping. Vintage nu National union 12SJ7GT vacuum tube, 12SJ7 numbers on the tube green box and lettering this item appears to be ...(March 6th, 2015)
  • (46.9% similar) And all the angels sang because heavenly music was playing it turned way up. These tubes are nos nib. It is easy at that point to take where top line intersects the plate voltage , find lamp level and compare data sheet. All are nos nib and tested by me. I give a number of evaluations for tubes. At...(January 16th, 2019)
  • (45.3% similar) Tested OK on TV10D u as a type 45 with proper filament voltage . Original box included, but is in poor condition. 182-B vintage tried nos National union...(March 8th, 2019)
  • (26.3% similar) Next day shipping we combine shipping. Everything always arrives fast and fine. Canada everything always arrives fast and fine USA shipping rest of world typically 9 to test great for rectifier tubes tube tube vintage about 1945TWO solid rectifiers also tested no shorts. National union 6X5GT tube ...(February 11th, 2015)
  • (50.8% similar) Free shipping is included. 1 inch CRT this is a very rare tube and guaranteed. Listing does not include anything mentioned in the and or shown photo's. Up for bids is a nos nib National union 1DP1 tube...(March 23rd, 2018)
tubesocketvintagego logo
1 offer $89.95 USD
  • For parts or not working. Offer #1 priced at $89.95 + $9.42 shipping estimate = $99.37* total. Ships carefully and fully insured. Vintage National Union (X-281) radio tube with its original National Union box.+$9.42 shipping

Copyright © tubesocketvintagego.com