EIMAC 8438-4-400A Military Cbxt Power Tetrode Tube

( Brand: Eimac ), ( Model: 4-400A ), ( Part Type: Tube ), ( Country/region Of Manufacture: United States )

Review EIMAC Vintage Rare Military Jan cbxt Power Tetrode Tube

The EIMAC 8438-4-400A Military JAN-CBXT Power Tetrode Tube is a high-performance vacuum tube designed for military and aerospace applications. This tube is a 4-400A power tetrode, which means it has four active electrodes, including a grid, plate, and two screen grids.

The EIMAC 8438-4-400A is a dual triode, making it highly versatile and capable of handling a wide range of power levels. It operates on a DC voltage of 1250V and has a plate current of 60A. This tube is designed for high-power applications, such as radio frequency (RF) amplifiers, microwave generators, and other high-power amplifier circuits.

The EIMAC 8438-4-400A is a Mil-Spec (Military Specification) tube, which means it meets stringent quality and performance standards. It is designed to withstand harsh environmental conditions, including temperature extremes, vibration, and radiation. The tube is vacuum-sealed to prevent the entry of contaminants and maintain a high vacuum level, which is essential for proper operation.

The EIMAC 8438-4-400A is made of high-quality materials, including a tungsten filament and a nickel-chromium grid. The filament is designed to last for thousands of hours, providing reliable operation over an extended period. The grid is made of a durable and corrosion-resistant material, ensuring long-term performance in harsh environments.

The EIMAC 8438-4-400A is a versatile tube that can be used in a wide range of high-power applications. Its high power handling, Mil-Spec quality, and durability make it an ideal choice for military and aerospace applications. Whether you're looking for a power tetrode tube for RF amplification, microwave generation, or other high-power applications, the EIMAC 8438-4-400A is an excellent choice.

1. Reliability: Eimac is known for producing high-quality vacuum tubes that are used in military and aerospace applications, ensuring durability and reliability.

2. Precision: JAN-CBXT designation indicates that the tube meets strict military specifications, ensuring precise performance and consistent quality.

3. Power handling: The 4-400A tube can handle high power levels, making it suitable for applications requiring significant output.

4. Availability: Eimac continues to manufacture and distribute this tube, ensuring easy availability and quick replacement.

1. Cost: Due to the high-quality materials and manufacturing process used, these tubes can be more expensive than their commercial counterparts.

2. Limited applications: These tubes are primarily used in specialized equipment, such as high-power amplifiers, and may not be suitable for general-purpose applications.

3. Maintenance: Vacuum tubes require regular maintenance and replacement of components, which can be time-consuming and expensive.

The 8438-4-400a Eimac Military JAN-CBXT Power Tetrode Tube 4-400a is a high-performance, reliable, and durable vacuum tube that is well-suited for specialized applications requiring high power handling. While the cost may be higher than commercial alternatives, the benefits of reliability, precision, and availability make it a worthwhile investment for those needing a versatile and robust tube for their equipment.

If you require a high-performance vacuum tube for your specialized equipment, the 8438-4-400a Eimac Military JAN-CBXT Power Tetrode Tube 4-400a is a strong recommendation due to its durability, precision, and power handling capabilities. However, consider the cost and maintenance requirements before making a final decision.

Details:

It appears to be brand new. This came from Wichita Boeing aircraft plant many years ago. Up for offer is a rare Eimac military jan-cbxt 400a tube, the filament test good other than that it untested due to not having proper tester.

Good luck and buying. Very hard to find this particular tube.

part #: 4400a prices

• $84.95-$199.99

specifications hamamateuradio:

• brand: Eimac
• model: 4-400a
• part type: Tube
• country/region of manufacture: United States

Ratings:

1. Hope to deal with you again. Thank you. 08-26-17
2. Great job of packaging! Got it, Thanks!!! 08-18-17
3. Tubes arrived as described, quickly! Thx! 08-23-17
4. Fast transaction, thank you. 08-16-17
5. FAST safe shipping, item perfect ! A Thank you! 08-20-17

Returns hamamateuradio:

• paid by: Buyer
• type: Money Back
• time: 14 Days
• policy: returns accepted

Offer hamamateuradio:

• bids: 0
• quantity: 1
• Started: August 27, 2017, 7:32 pm
• best offer: false
• Sold: 0

General hamamateuradio:

• condition: Used
• consumer electronics > radio communication electronics > ham amateur radio communication
• in stock: Yes

Payments hamamateuradio:

• PayPal

Seller hamamateuradio:

• zipcode: 64145
• city: Kansas City, Missouri

Shipping hamamateuradio:

• type: Flat
• handling: 1 days
• cost: $11.0

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