1. Vintage Tubes & Sockets Audio For Sale
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  3. EIMAC Y261

EIMAC 4CX300A Mil Ceramic Tetrode Tube Y261 4CN15A

4cx300a Y261 Eimac 1 Ea Mil

( Brand: Eimac ), ( Model: Y261 ), ( Country/region Of Manufacture: United States ), ( Type: Power Tetrode )

Review EIMAC Ea Mil Spec Ceramic Powered Tetrode Tube

The 4CX300A EA Mil Y261 4CN15A Ceramic Tetrode Tube, manufactured by Eimac, is a high-performance vacuum tube that is designed for use in various applications, particularly in high-power RF amplifiers. This tube is renowned for its exceptional reliability, durability, and efficiency, making it an ideal choice for those seeking superior performance in their electronic devices.

The 4CX300A is a ceramic tetrode tube, which means it has four electrodes: the cathode, anode, and two grid structures. The ceramic material used in its construction offers excellent thermal conductivity, enabling the tube to dissipate heat efficiently and maintain a stable operating temperature, even under high power loads. This ensures a longer lifespan for the tube and reduces the risk of thermal failure.

The 4CN15A designation indicates the specific version of this tube, with the '4C' denoting the tetrode configuration and 'X300A' indicating the power rating. The 'EA' in the part number refers to the tube being available in a military-specification packaging, ensuring a high level of quality and reliability.

The 4CX300A EA Mil Y261 4CN15A Ceramic Tetrode Tube is designed to operate at a nominal voltage of 450 volts and a nominal current of 2.6 amperes. It has a power rating of 300 watts and a maximum power dissipation of 500 watts, making it suitable for use in high-power applications.

This tube is known for its excellent RF performance, with a frequency range of 20 MHz to 10 GHz. It also has a high gain and a high output power, making it an excellent choice for use in high-power RF amplifiers, such as those used in radio transmitters, radar systems, and microwave ovens.

In summary, the 4CX300A EA Mil Y261 4CN15A Ceramic Tetrode Tube is a high-performance vacuum tube designed for use in high-power RF applications. Its ceramic construction ensures excellent thermal conductivity and a long lifespan, while its high gain and power rating make it an excellent choice for use in high-power RF amplifiers.

Pros of buying 4CX300A EA MIL Y261 4CN15A Ceramic Tetrode Tube EIMAC:

1. High Power Output: This tube has a high power output, making it suitable for applications that require high power amplification.

2. Durable Construction: Ceramic tetrode tubes are known for their durability and long lifespan.

3. Good Linearity and Stability: The tube has good linearity and stability, which makes it suitable for applications that require accurate amplification.

4. Wide Frequency Response: The tube has a wide frequency response, making it suitable for applications that require frequency range amplification.

Cons of buying 4CX300A EA MIL Y261 4CN15A Ceramic Tetrode Tube EIMAC:

1. High Cost: Ceramic tetrode tubes are more expensive compared to other types of tubes.

2. Limited Availability: These tubes may not be easily available in the market, making it difficult to find replacements or spare parts.

3. Requires Careful Handling: Ceramic tetrode tubes require careful handling and maintenance to avoid damage and prolong their lifespan.

Conclusion:

The 4CX300A EA MIL Y261 4CN15A Ceramic Tetrode Tube EIMAC is a high-performance tube suitable for applications that require high power amplification, linearity, stability, and wide frequency response. However, its high cost and limited availability are drawbacks that need to be considered. If the application requires these specific characteristics, then the high cost and limited availability may be justified. If not, other types of tubes with lower cost and higher availability may be more suitable.

Recommendation:

If the application requires high power amplification, linearity, stability, and wide frequency response, then the 4CX300A EA MIL Y261 4CN15A Ceramic Tetrode Tube EIMAC is a good choice. However, if the application does not require these specific characteristics, then other types of tubes with lower cost and higher availability may be more suitable. It is recommended to carefully evaluate the specific requirements of the application before making a purchase decision.

Details:

It is electronically identical to the 4CX300A with exception of plate dissipation which rated at 15w in air. This is for 1 piece Y261-4cn15a tube. I have 6 new in military packaging and 1 as pictured opened.

Where other cooling means are used, such as liquid immersion plate dissipation is limited only by the maximum allowed anode and sealed temperatures.

part #: y261 prices

  • $45.00-$150.00

specifications tubesocketvintagego:

  • brand: Eimac
  • model: Y261
  • country/region of manufacture: United States
  • type: Power Tetrode

Ratings:

  1. Great !!!! 07-26-17
  2. as advertised 07-27-17
  3. good quality at a good price. recommended 07-27-17
  4. Great deal, smooth transaction, recommended seller, A ! 07-27-17
  5. Wonderful 07-28-17

Returns tubesocketvintagego:

  • policy: no returns

General tubesocketvintagego:

  • consumer electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio
  • in stock: Yes

Offer tubesocketvintagego:

  • best offer: true
  • Started: July 28, 2017, 9:22 am
  • bids: 0
  • Sold: 0
  • quantity: 7

Seller tubesocketvintagego:

  • zipcode: 90501
  • city: Torrance, California

Shipping tubesocketvintagego:

  • cost: $4.0
  • type: Flat
  • handling: 1 days

Payments tubesocketvintagego:

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country/region of manufacture: united states, type: power tetrode,
category: electronics > vintage electronics > vintage audio video parts accessories consumer electronics > vintage tubestubes sockets audio, sku: 7813378446797271,
Review#1 Great !!!! ()
Review#2 as advertised ()
Review#3 good quality at a good price. recommended ()
Review#4 Great deal, smooth transaction, recommended seller, A ! ()
Review#5 Wonderful ()
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5 offers $45.00–$150.00 USD
  • Used. Offer #1 priced at $45.00 + $9.30 shipping estimate = $54.30* total. Rhodium Plated instead of silver. The difference between the Y180 and are the 180s are.+$9.30 shipping
  • Open box. Offer #2 priced at $150.00 + $11.00 shipping estimate = $161.00* total. With its reputable brand and specific type designation, collectors and enthusiasts can rest assured of its quality and authenticity. The Eimac Electron Tube 8167/ is a vintage part from the United States, specifically designed for use in audio and video equipment.+$11.00 shipping
  • Used. Offer #3 priced at $71.99 + $0.00 shipping estimate = $71.99* total. ALL THE ONES I HAVE SOLD CHECKED OUT TESTED THESE TWO FOR CONTINUITY AND ARE OK.FREE SHIPPING
  • New. Offer #4 priced at $35.59 + $39.99 shipping estimate = $75.58* total. Cooling Forced Air. EIMAC 8167 - POWER TRANSMITTING TUBE - SINGLE - NIB - NOS .+$39.99 shipping
  • New – Open box. Offer #5 priced at $150.00 + $0.00 shipping estimate = $150.00* total. Eimac /8167 Transmitter Tube New.Boxes have slight damage and shelf ware.FREE SHIPPING

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