1. Vintage Tubes & Sockets Audio For Sale
  2. sku: 10561835189082983
  3. RCA UX-842

RCA UX-842 Radiotron Vacuum Tube Triode

Ux-842 Rca Radiotron Vacuum Tube Early Triode Untested Estate Find

( Brand: Rca ), ( Manufacturer Part Number: UX-842 ), ( Model: RCA RADIOTRON UX-842 ), ( Type: Vacuum Tube )

Review RCA Radiotron Vacuum Tube Early Triode Untested Estate Find

RCA UX-842 RadioShack Vacuum Tube Triode - A Classic Audio Component for Audiophiles

Step back in time and embrace the nostalgia of vintage audio technology with the RCA UX-842 RadioShack Vacuum Tube Triode. This iconic piece of audio equipment is a testament to the golden era of radio broadcasting and high-fidelity sound systems.

The RCA UX-842 is a triode vacuum tube, a fundamental component in the development of early radio and audio systems. Designed by the renowned Radio Corporation of America (RCA), this tube carries the legacy of a company that was instrumental in shaping the audio industry.

The UX-842 is a high-mu (mu 1500) triode, offering excellent linearity and high current gain, making it suitable for a wide range of applications. It operates at a plate voltage of 300V and a plate current of 20mA. The tube's filament requires 6.3V and draws approximately 0.4A, making it a power-efficient choice for your vintage equipment.

The RCA UX-842 features a robust construction with a glass envelope and metal grid and plate. Its rugged design ensures durability and reliability, even after decades of use. The tube's distinctive golden color and classic RCA branding make it a visually appealing addition to any vintage audio setup.

Whether you're a seasoned audiophile or a collector of vintage electronics, the RCA UX-842 RadioShack Vacuum Tube Triode is a must-have component for your audio system. Its rich, warm sound and timeless design are a testament to the enduring appeal of vacuum tube technology. Experience the warmth, richness, and authenticity of analog sound with the RCA UX-842.

The RCA UX-424 Radiotron Vacuum Tube Triode is a classic tube audio component, known for its warm and rich sound. Here are some pros and cons to consider:

Pros:

1. Authentic Vintage Sound: The tube technology provides a unique, warm, and rich sound that many audiophiles appreciate. It adds a musicality and depth that is hard to achieve with solid-state components.

2. Durability: Vacuum tubes, when properly maintained, can last for thousands of hours.

3. Nostalgia: For those who appreciate history and the aesthetic of vintage technology, the RCA UX-424 is a beautiful piece that adds a unique touch to any audio setup.

Cons:

1. Inefficiency: Tube amplifiers are less efficient than solid-state amplifiers, which means they consume more power and generate more heat.

2. Maintenance: Vacuum tubes require regular monitoring and replacement, which can be costly in the long run.

3. Size and Weight: Tube equipment is generally larger and heavier than solid-state equipment.

4. Cost: High-quality vacuum tubes and tube amplifiers can be more expensive than their solid-state counterparts.

Conclusion:

The RCA UX-424 Radiotron Vacuum Tube Triode offers a unique and authentic sound that many audiophiles cherish. However, it comes with some trade-offs, including higher cost, increased size and weight, and higher power consumption. If you value the vintage sound and are willing to accept these trade-offs, then the RCA UX-424 could be a great addition to your audio setup. If you prioritize efficiency, ease of maintenance, and a smaller footprint, then a solid-state amplifier may be a better choice for you.

Details:

Excellent cosmetic condition with strong lettering and clean pins. I do not have a tester for this, so its sold untested/as-is. Box included. No cracks, no chips.

RCA Radiotron UX-842 vacuum tube from an estate.

part #: ux842 prices

  • $15.00-$290.08

specifications tubesocketvintagego:

  • brand: Rca
  • mpn: Ux-842
  • model: Rca Radiotron Ux-842
  • type: Vacuum Tube

returns tubesocketvintagego:

  • policy: No Returns

offer tubesocketvintagego:

  • started: November 24, 2025
  • quantity: 1
  • best offers: True
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home

shipping tubesocketvintagego:

  • cost: $5.24
  • service: USPS Ground Advantage
  • type: Calculated
  • transit: 4-10 Days
  • class: Standard
  • carrier: USPS

seller tubesocketvintagego:

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

general tubesocketvintagego:

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

payments tubesocketvintagego:

  • other
  • wallet: Paypal
  • credit card: Visa
type: vacuum tube,
category: electronics > vintage audio video > vintage parts accessories > vintage tubes tube sockets, sku: 10561835189082983,
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5 offers $15.00–$290.08 USD
  • Open box. Offer #1 priced at $15.00 + $5.62 shipping estimate = $20.62* total. +$5.62 shipping
  • Offer #2 priced at $290.08 + $46.41 shipping estimate = $336.49* total. +$46.41 shipping
  • Used. Offer #3 priced at $19.99 + $0.00 shipping estimate = $19.99* total. FREE SHIPPING
  • New. Offer #4 priced at $32.00 + $7.51 shipping estimate = $39.51* total. +$7.51 shipping
  • Open box. Offer #5 priced at $19.98 + $14.95 shipping estimate = $34.93* total. +$14.95 shipping

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