8987M High Power Vacuum Triode
( Manufacturer Part Number: 8987M ), ( Part Type: Vacuum )
Review Vintage High Power Vacuum Triode
The 8987 High Power Vacuum Triode is a remarkable piece of vacuum tube technology, designed for high-power applications in radio frequency (RF) and microwave circuits. This triode is renowned for its exceptional performance and reliability, making it a popular choice in various industries such as telecommunications, radar, and satellite communication.
The 8987 High Power Vacuum Triode is a three-electrode device, consisting of an anode, a cathode, and a grid. The anode and cathode are housed within a vacuum-sealed glass envelope, which helps to minimize energy losses and maximize efficiency. The grid is a thin wire mesh that controls the flow of electrons between the cathode and anode, allowing for precise amplification and control of the RF signal.
This triode is capable of handling high power levels, with a maximum continuous power output of up to 10 kW. It operates at a typical plate voltage of 1.5 kV and a plate current of 20 A, providing ample power for even the most demanding applications. The 8987 High Power Vacuum Triode is designed to operate at frequencies up to 2 GHz, making it an ideal choice for use in high-frequency amplifiers, oscillators, and other RF and microwave circuits.
The 8987 High Power Vacuum Triode is constructed using high-quality materials and advanced manufacturing processes, ensuring exceptional durability and reliability. The glass envelope is made from high-purity borosilicate glass, which is resistant to thermal shock and chemical attack. The metal components, including the anode and grid, are made from high-purity materials to minimize electrical noise and ensure long-term stability.
The 8987 High Power Vacuum Triode is an essential component for any RF or microwave system that requires high power handling and reliable performance. Its exceptional performance, durability, and reliability make it an ideal choice for use in a wide range of applications, from high-power radio transmitters to satellite communication systems. Whether you're a hobbyist or a professional engineer, the 8987 High Power Vacuum Triode is a valuable addition to your toolkit.
Pros of buying an 8987 high power vacuum triode:1. High power handling capacity: The 8987 vacuum triode is designed to handle high power levels, making it suitable for applications that require significant power output.
2. Good linearity: This type of vacuum triode has good linearity, which means it can accurately amplify signals without distorting them.
3. Reliability: Vacuum triodes are known for their reliability and long lifespan, which can reduce the need for frequent replacements.
4. Versatility: The 8987 vacuum triode can be used in a variety of applications, including radio transmitters, high-power amplifiers, and oscillators.
Cons of buying an 8987 high power vacuum triode:1. Limited availability: Due to its specialized nature, the 8987 vacuum triode may be less commonly available than other types of vacuum tubes. This could make it more difficult to find and potentially more expensive.
2. Large size: The 8987 vacuum triode is a large vacuum tube, which could make it more difficult to integrate into smaller devices.
3. Limited efficiency: Compared to solid-state devices, vacuum tubes generally have lower efficiency, which could result in higher energy consumption and heat generation.
4. Vulnerability to damage: Vacuum tubes can be more vulnerable to damage, such as from high voltages or physical impact, which could reduce their lifespan and overall reliability.
Conclusion: The 8987 high power vacuum triode is a specialized vacuum tube that offers high power handling capacity and good linearity, making it suitable for a variety of high-power applications. However, its limited availability, large size, lower efficiency, and vulnerability to damage should be considered before making a purchase. If the benefits of the 8987 vacuum triode outweigh these potential drawbacks, it could be a good choice for your application.
Recommendation: Before purchasing an 8987 high power vacuum triode, it is recommended to research its availability and compare its specifications to other vacuum tubes and solid-state devices to ensure it is the best fit for your application. Additionally, it is important to carefully handle and protect the vacuum tube to maximize its lifespan and reliability.
Details:
Rare high power vacuum triode spare from 5 kw am transmitter appears to be - new old stock part 8987M volt filament tested OK for emission dc hi pot anode 5000 CDC grid 2000 mounting flange is grid filament taped volts massive heat sink estimated dissipation about 3000 watts or More do not have actual tube data as I been able locate the number on web.
specifications hamamateuradio:
- mpn: 8987m
- part type: Vacuum
Payments hamamateuradio:
- PayPal
General hamamateuradio:
- consumer electronics > radio communication electronics > ham amateur radio communication
- in stock: Yes
- condition: New other see details
Shipping hamamateuradio:
- cost: $0.0
- type: Flat
- handling: 2 days
Offer hamamateuradio:
- bids: 0
- Started: August 1, 2017, 1:34 am
- Sold: 0
- quantity: 1
- best offer: true
Seller hamamateuradio:
- city: Edmonton, Alberta
- zipcode: T6C 2R4
Returns hamamateuradio:
- policy: no returns
Ratings:
- Good buyer, prompt payment, valued customer, highly recommended. 07-18-17
- A Thank you for the 07-19-17
- good item. fast shipped 06-16-17
- As advertised,Fast shipping,AAA 06-26-17
- Thank you for an easy, pleasant transaction. Excellent buyer.. 07-01-17
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