AMPEREX 4X-500A Nos Eimac Ham Radio Tube

( Brand: Amperex ), ( Manufacturer Part Number: 4X-500A ), ( Part Type: Radio Tube Test ), ( Country Of Origin: United States )

Review AMPEREX Guaranteed Nos Test Eimac Ham Radio Tube

Amperex 4x-500A NOS EIMAC Ham Radio Tubes

The Amperex 4x-500A NOS EIMAC ham radio tubes are a set of four vintage, New Old Stock (NOS) tubes manufactured by EIMAC, a renowned brand in the radio communication industry. These tubes are ideal for ham radio enthusiasts seeking authentic and high-performance components for their vintage or classic radio systems.

Each tube in this set measures 9 inches in length, 3 inches in diameter, and weighs approximately 1.5 pounds. The tubes come equipped with a grid structure, anode, and filament pins, allowing for easy installation in compatible ham radio equipment. The glass envelope is thick and robust, ensuring durability and longevity, making these tubes an excellent investment for those looking for long-term solutions.

The Amperex 4x-500A NOS EIMAC ham radio tubes are designed to deliver impressive power handling capabilities of up to 500 watts per tube, making them suitable for high-power applications. They exhibit exceptional electrical characteristics, including high gain, low plate resistance, and low microphonic sensitivity, contributing to superior radio performance.

These tubes are vacuum-sealed, preventing the ingress of external contaminants, and feature a high-quality filament and cathode coating that ensures stable operation and a long lifespan. The tubes are tested for leakage and voltage, ensuring they meet the required specifications for optimal performance.

The Amperex 4x-500A NOS EIMAC ham radio tubes are a must-have for radio enthusiasts who appreciate the rich history and unique character of vintage ham radio equipment. Their superior power handling capabilities, excellent electrical characteristics, and robust design make them an essential component for any serious ham radio setup.

It is important to note that these tubes are intended for use in vintage and classic radio systems and may not be compatible with modern equipment. Always ensure that the tubes are compatible with your specific radio model before installation. Additionally, proper handling and installation procedures should be followed to ensure the longevity and safety of the tubes.

Pros and Cons of Buying an Amperex 4x-500A NOS EIMAC Ham Radio Tube

The Amperex 4x-500A NOS EIMAC tube is a popular choice among ham radio enthusiasts for its high power handling capability and excellent performance. However, like any other electronic component, it comes with its advantages and disadvantages. In this analysis, we will discuss the pros and cons of purchasing an Amperex 4x-500A NOS EIMAC ham radio tube.

1. High Power Handling: The Amperex 4x-500A NOS EIMAC tube can handle up to 500 watts of power, making it an excellent choice for high-power ham radio applications.

2. Longer Life Span: New Old Stock (NOS) tubes, like the Amperex 4x-500A, have been stored for an extended period, reducing the chances of premature failure due to aging.

3. Vintage Appeal: The Amperex 4x-500A NOS EIMAC tube has a vintage appeal that some ham radio enthusiasts find attractive, adding a nostalgic touch to their setup.

4. Excellent Performance: The Amperex 4x-500A NOS EIMAC tube provides excellent performance, with a high gain and excellent linearity, making it an excellent choice for SSB, CW, and AM applications.

1. Limited Availability: The Amperex 4x-500A NOS EIMAC tube is a vintage component, and its availability is limited. This scarcity can lead to higher prices and longer lead times.

2. Higher Cost: Due to its high power handling capability and excellent performance, the Amperex 4x-500A NOS EIMAC tube is more expensive than modern alternatives.

3. Requires Careful Handling: NOS tubes, like the Amperex 4x-500A, require careful handling to avoid damage. This can add to the overall cost and complexity of the setup.

4. Incompatibility with Modern Equipment: The Amperex 4x-500A NOS EIMAC tube may not be compatible with modern ham radio equipment, requiring additional modifications or upgrades.

The Amperex 4x-500A NOS EIMAC ham radio tube offers excellent performance, high power handling capability, and a vintage appeal that some ham radio enthusiasts find attractive. However, its limited availability, higher cost, and compatibility issues with modern equipment are significant drawbacks. Ultimately, the decision to purchase an Amperex 4x-500A NOS EIMAC tube depends on the user's specific requirements, budget, and preferences. If you are looking for a high-performance tube for a vintage ham radio setup, this tube is an excellent choice. However, if you prioritize modern features, ease of use, and affordability, you may want to consider alternative options.

If you are looking for a high-power ham radio tube and prefer the vintage appeal, the Amperex 4x-500A NOS EIMAC tube is an excellent choice. However, if you prioritize modern features, ease of use, and affordability, you may want to consider alternative options such as modern solid-state amplifiers or tubes with more widespread availability. Ultimately, the best choice depends on your specific requirements, budget, and preferences.

Details:

I no longer ship to China Vietnam due lost packages in Custom's.

part #: 4x500a prices

• $66.00-$299.99

specifications vintaelec:

• brand: Amperex
• mpn: 4x-500a
• part type: Radio Tube Test
• country of origin: United States

offer vintaelec:

• sold: 0
• started: December 8, 2025
• quantity: 1
• options: Ship-to-home
• availability: In Stock

returns vintaelec:

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

shipping vintaelec:

• class: Expedited
• type: Calculated
• transit: 3-7 Days
• carrier: USPS
• service: USPS Priority Mail
• cost: $19.45

seller vintaelec:

• rating: 100.0%
• # reviews: 10162
• city: Salem, Oregon

general vintaelec:

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

payments vintaelec:

• wallet: Apple-pay
• other
• credit card: Discover

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