VALVE 3ZR187 Machlett Laboratories Electron Tube ML-5531

( Brand: Valve ), ( Manufacturer Part Number: 3ZR187 ), ( Type: Transmitting Tube ), ( Product Type: Tube ), ( Custom Bundle: No ), ( Country/region Of Manufacture: United States )

Review VALVE Machlett Laboratories Vintage Electron Tube Read

Valve 3ZR187 - Machlett Laboratories ML-5531 Electron Tube - A Precision Instrument for Demanding Applications

The Valve 3ZR187, manufactured by Machlett Laboratories, is a high-performance electron tube designed for use in sophisticated laboratory equipment. This tube is a testament to Machlett's commitment to quality and precision, making it a trusted choice for researchers and scientists worldwide.

The ML-5531 Valve 3ZR187 is a triode vacuum tube, offering a balanced combination of high gain, low noise, and excellent linearity. Its design allows for efficient amplification of weak electrical signals, making it ideal for a wide range of applications, including radio frequency (RF) amplifiers, oscillators, and high-frequency power supplies.

The Valve 3ZR187 is housed in a durable glass envelope, which is sealed under high vacuum conditions to minimize noise and ensure stability. The tube's metal base is secured with a heavy-duty screw, allowing for easy installation and replacement. The tube's internal components are made of high-quality materials, ensuring long-term reliability and consistent performance.

One of the standout features of the Valve 3ZR187 is its high-frequency rating. With a cutoff frequency of approximately 1 GHz, this tube can handle high-speed signals with ease. Its high gain and low noise characteristics make it an excellent choice for applications that require sharp, accurate signal reproduction, such as spectrum analyzers and communication systems.

The Machlett Laboratories ML-5531 Valve 3ZR187 comes with comprehensive specifications, including a maximum plate voltage of 600V, a maximum plate current of 250mA, and a maximum grid voltage of 100V. These specifications, along with the tube's high-quality construction, ensure that it can handle the demands of even the most sophisticated laboratory equipment.

In conclusion, the Valve 3ZR187 - Machlett Laboratories ML-5531 Electron Tube is a versatile and reliable component for laboratory applications. Its high-frequency rating, excellent gain, low noise, and superior linearity make it an ideal choice for a wide range of applications, from RF amplification to high-speed signal processing. Whether you're a researcher, a scientist, or an engineer, the Valve 3ZR187 is a precision instrument that you can trust to deliver consistent, accurate results.

The Valve 3ZR187 Machlett Laboratories ML-5531 Electron Tube is a specialized product primarily used in laboratory settings for RF amplification. Let's discuss its pros and cons:

1. High Quality: This tube is known for its high-quality construction, which ensures durability and reliability for long-term use in demanding laboratory conditions.

2. RF Amplification: The ML-5531 is particularly suitable for RF amplification applications, making it an ideal choice for radio frequency testing and research.

3. Stable Performance: The tube offers stable performance over a wide frequency range, which can be beneficial in various experiments and measurements.

4. Brand Reputation: Machlett Laboratories has a good reputation for manufacturing high-quality electron tubes, which may give buyers confidence in their purchase.

1. Specialization: This tube is designed for specific applications in laboratory settings, making it less versatile compared to general-purpose electron tubes.

2. Price: Due to its high quality and specialized nature, the ML-5531 can be more expensive than general-purpose electron tubes.

3. Limited Availability: These tubes may not be readily available from all electronics retailers, which could make sourcing more challenging.

4. Technical Knowledge Required: Proper usage and maintenance of this tube require an understanding of electron tubes and RF technology, which may be a barrier for some users.

If you are in need of a high-quality, specialized RF amplification tube for laboratory use, the Valve 3ZR187 Machlett Laboratories ML-5531 Electron Tube could be a good choice, despite its higher price and limited availability. However, ensure you have the necessary technical knowledge to properly use and maintain this tube, or consult with a professional if needed. If you're unsure about the specific requirements for your application, it's advisable to consult a specialist in RF technology or the manufacturer directly for recommendations.

Details:

I am not an operator and don't have the knowledge to fully test myself. From the research we did. Not saying it won't need adjustments but, looks like a nice clean unit. I did purchase from a local operator.

I do a lot of business with them and they always have well cared for gear. Manufacturing number wore off. Everything you see in the pictures is what included this lot. Items may need a more in depth cleaning.

Photos are the best. Please look at all pictures closely before purchasing. We could be wrong.

part #: 3zr187 prices

• $86.95-$100.00

specifications tubesocketvintagego:

• brand: Valve
• mpn: 3zr187
• type: Transmitting Tube
• product type: Tube
• custom bundle: No
• country/region of manufacture: United States

offer tubesocketvintagego:

• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: May 22, 2025

general tubesocketvintagego:

• condition: Used
• Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets

shipping tubesocketvintagego:

• transit: 10-16 Days
• service: USPS Ground Advantage
• cost: $29.99
• type: Fixed
• carrier: USPS
• class: Standard

payments tubesocketvintagego:

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

returns tubesocketvintagego:

• policy: No Returns

seller tubesocketvintagego:

• city: Federal Way, Washington
• # reviews: 7477
• rating: 99.4%

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