1. Ham, Amateur Radio Communication For Sale
  2. sku: 12858666970086781
  3. EIMAC 4CV8000A

EIMAC 4CV8000A Water Cooled Rf Transmitting Tube Watts

4cv8000a Eimac One Water Cooled Rf Transmitting Tube 8000 Watts - As Untested

( Brand: Eimac ), ( Manufacturer Part Number: 4CV8000A ), ( Type: Tube Amplifier ), ( Band: Am/fm, Hf, Vhf ), ( Country Of Origin: United States ), ( Power: 8000 Watts )

Review EIMAC One Water Cooled Rf Transmitting Tube 8000 Watts As Untested

EIMAC 4CV8000A Water-Cooled RF Transmitting Tube - Powerful and Efficient High-Frequency Amplification Solution

The EIMAC 4CV8000A Water-Cooled RF Transmitting Tube is a high-performance, high-power amplifier designed for demanding radio frequency (RF) applications. This remarkable tube offers a continuous RF output power of 8000 watts, making it an ideal choice for applications requiring immense power transmission.

The EIMAC 4CV8000A is a water-cooled tube, ensuring efficient heat dissipation and maintaining a stable operating temperature, even under heavy loads. This water cooling system allows for continuous operation and minimizes the risk of overheating, ensuring a longer lifespan for the tube.

The tube operates at a frequency of 4 MHz, making it suitable for medium-frequency applications. The EIMAC 4CV8000A is equipped with a built-in self-excitation circuit, eliminating the need for an external RF source for operation.

The EIMAC 4CV8000A is designed with robust construction, featuring a high-quality quartz envelope and a sturdy metal base. This ensures the tube's structural integrity, even in harsh environments. The tube also features a precision-engineered anode, cathode, and grid system, ensuring optimal performance and minimizing distortion.

In summary, the EIMAC 4CV8000A Water-Cooled RF Transmitting Tube is a powerful and efficient solution for high-power RF applications. Its water cooling system, self-excitation circuit, robust construction, and precision-engineered components make it an ideal choice for demanding RF applications, offering reliable, high-power, and high-frequency transmission.

Assessment of Eimac 4CV8000A Water-Cooled RF Transmitting Tube (8000 Watts)

Pros:

1. High Power Output: With an output of 8000 watts, this tube is ideal for high-power applications such as HF, VHF, and UHF transmitters.

2. Water-Cooled Design: The water-cooled design ensures efficient heat dissipation, which is crucial for maintaining the tube's performance and lifespan during prolonged use.

3. Durable Construction: Eimac tubes are known for their robustness and reliability, making them a popular choice in professional settings.

Cons:

1. High Cost: Given its high power output and durable construction, the Eimac 4CV8000A is a premium product, making it a significant investment for many users.

2. Complex Installation: Due to its size, power, and cooling system, installing this tube may require professional assistance, adding to the overall cost and complexity.

3. Power Consumption: Operating a 8000-watt tube will consume a significant amount of power, which could lead to increased electricity bills.

Conclusion:

The Eimac 4CV8000A Water-Cooled RF Transmitting Tube offers impressive power output and durability, making it an excellent choice for high-demand, professional applications. However, its high cost, complex installation, and power consumption are factors that potential buyers should consider before making a decision.

Recommendation:

If you require a high-power tube for demanding applications and have the necessary budget and technical resources for installation, the Eimac 4CV8000A could be a valuable addition to your equipment. For those with more modest needs or budget constraints, it may be wise to consider lower-powered tubes or alternative solutions. Always ensure to research and compare multiple options to find the best fit for your specific requirements.

Details:

It is good for a vintage tube display but not practical home use as it takes 9 volts filament at 42 amps and 7000 on the plate plus water cooling system. It is heavy with a lot of copper. No tube socket available. This tube is unusual as it mounts upside down with be base up and submerged in circulating water to keep cool.

I do not know it can be serviced and reconditioned. See all the pictures for tube spec. No way for me to test this. You can make an offer.

This sale is for ONE 1 used Eimac 4CV8000A Tube and it a Power Amplifier RF Transmitting. Sheet and a better PDF version can be found online.

part #: 4cv8000a price

  • $9792.64

specifications hamamateuradio:

  • brand: Eimac
  • mpn: 4cv8000a
  • type: Tube Amplifier
  • band: Am/fm, Hf, Vhf
  • country of origin: United States
  • power: 8000 Watts

shipping hamamateuradio:

  • class: Economy
  • type: Fixed
  • cost: $40.00
  • transit: 4-10 Days
  • service: Economy

offer hamamateuradio:

  • options: Ship-to-home
  • availability: In Stock
  • started: October 24, 2025
  • quantity: 2
  • best offers: True
  • sold: 0

seller hamamateuradio:

  • city: Gilbert, South Carolina
  • rating: 100.0%
  • # reviews: 2775

payments hamamateuradio:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

returns hamamateuradio:

  • policy: No Returns

general hamamateuradio:

  • Radio Communication > Ham, Amateur Radio > Ham Radio Amplifiers
  • condition: Used
type: tube amplifier, band: am/fm, hf, vhf, country of origin: united states, power: 8000 watts,
category: electronics > radio communication > ham, amateur radio > ham radio amplifiers, sku: 12858666970086781,
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1 offer $9792.64 USD
  • Open box. Offer #1 priced at $9792.64 + $29.95 shipping estimate = $9822.59* total. +$29.95 shipping

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