RCA OTHER CX-381 Nos Globe Ham Radio Tubes UX-281

( Brand: Rca Other ), ( Manufacturer Part Number: CX-381 ), ( Model: UX-281, CX-381 GLOBE ), ( Part Type: Radio Tube ), ( Country Of Origin: United States )

Review RCA OTHER Nos To Strong Globe Ham Radio Tubes

The RCA CX-381 NOS UX-281 Globe Ham Radio Tubes are vintage components that have been reintroduced to the market due to their high demand among ham radio enthusiasts. These tubes are not only valuable for their historical significance but also for their exceptional performance in various radio applications.

The RCA CX-381 is a dual triode vacuum tube with a fixed bias, making it suitable for use as a preamplifier or a driver in a radio transmitter or receiver circuit. The tube features a heater voltage range of 6.3 to 7.5 volts and a plate voltage range of 200 to 300 volts. It has a plate current capacity of up to 140 milliamperes and a plate dissipation of 2 watts. The tube's filament is rated at 5 watts.

The RCA UX-281 Globe is a tetrode vacuum tube that was commonly used as a power output tube in ham radio transmitters. It has a heater voltage range of 6.3 to 7.5 volts and a plate voltage range of 300 to 600 volts. The tube has a plate current capacity of up to 500 milliamperes and a plate dissipation of 15 watts. The UX-281 Globe also features a built-in voltage regulator, which makes it easier to use in various radio applications.

Both the RCA CX-381 and UX-281 Globe tubes are made with high-quality materials and are carefully tested to ensure they meet the original specifications. They are packaged in protective hard-shell containers to ensure safe shipping and handling. These tubes are a must-have for any serious ham radio enthusiast looking to build or restore vintage radio equipment.

The RCA CX-381 NOS UX-281 Globe Ham Radio Tubes are not only functional components but also collectible items that add character to any ham radio station. Their unique design and historical significance make them a valuable addition to any collection.

In conclusion, the RCA CX-381 NOS UX-281 Globe Ham Radio Tubes are high-performance components that offer exceptional value to ham radio enthusiasts. They are carefully tested and packaged to ensure safe shipping and handling, making them a reliable choice for any ham radio application. With their historical significance and unique design, these tubes are sure to be a valuable addition to any ham radio collection.

RCAs CX-381 NOS (New Old Stock) and UX-281 tubes for ham radio applications are vintage components that still hold significance in the hobby due to their historical value and superior performance compared to modern alternatives. However, considering a purchase of these tubes involves weighing their advantages against the potential disadvantages. Here are some pros and cons to help you make an informed decision:

1. Superior RF performance: These tubes are renowned for their exceptional RF (Radio Frequency) performance, making them suitable for applications where linearity, gain, and low distortion are crucial.

2. Historical value: For collectors and hobbyists, owning vintage tubes like these can be a source of pride and joy, adding to the overall enjoyment of the ham radio experience.

3. Nostalgic appeal: Using these tubes can evoke a sense of nostalgia, connecting hobbyists to the early days of ham radio and electronics.

4. Availability: Although these tubes are not as common as modern alternatives, they can still be found from various sources, including online marketplaces, ham radio swap meets, and specialized suppliers.

5. Potential for restoration: Some hobbyists may find these tubes in less-than-perfect condition and see it as an opportunity to restore them to their original glory, adding an extra layer of satisfaction to the purchase.

1. Higher cost: Compared to modern tubes or solid-state alternatives, NOS tubes like the RCA CX-381 and UX-281 can be significantly more expensive.

2. Limited availability: Due to their age and rarity, these tubes may not be readily available, requiring hobbyists to search extensively or pay higher prices to acquire them.

3. Increased maintenance: Vintage tubes may require more maintenance than modern alternatives, including regular alignment, adjustments, and replacement of components.

4. Fragility: The aging process can make these tubes more fragile, increasing the risk of damage during handling or use.

5. Incompatibility with modern equipment: Some modern ham radio equipment may not be compatible with these vintage tubes, requiring additional modifications or upgrades.

In conclusion, the decision to buy RCA CX-381 NOS and UX-281 tubes for ham radio applications depends on the individual hobbyist's priorities and preferences. These tubes offer superior RF performance, historical value, and nostalgic appeal, but they come with higher costs, limited availability, increased maintenance, fragility, and potential compatibility issues.

If you are a purist, collector, or hobbyist who values the historical significance and superior RF performance of these tubes, they may be worth the investment. However, if you prioritize ease of use, lower costs, and compatibility with modern equipment, modern alternatives may be a better fit for your ham radio setup. Ultimately, the choice is yours, and I hope this information helps you make an informed decision.

Details:

Value being 40 or same as 65%, Good Luck buying. I no longer ship to China Vietnam due lost packages in Custom's.

part #: cx381 prices

• $40.00-$75.00

specifications vintaelec:

• brand: Rca Other
• mpn: Cx-381
• model: Ux-281, Cx-381 Globe
• part type: Radio Tube
• country of origin: United States

general vintaelec:

• Consumer Electronics > Vintage Electronics > Other Vintage Electronics
• condition: Used

returns vintaelec:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days
• method: Money back

offer vintaelec:

• availability: In Stock
• started: February 27, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

shipping vintaelec:

• type: Calculated
• carrier: USPS
• transit: 5-11 Days
• service: USPS Priority Mail
• class: Expedited
• cost: $16.80

payments vintaelec:

• credit card: Diners-club
• wallet: Apple-pay
• Other

seller vintaelec:

• # reviews: 10306
• rating: 100.0%
• city: Salem, Oregon

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