GENERAL RADIO 1490-C Genrad Decade Inductor

( Brand: General Radio ), ( Manufacturer Part Number: 1490-C )

Review GENERAL RADIO Genrad Decade Inductor

The GRAD Decade Inductor Model 1490-C is a high-performance inductor designed for use in radio applications, particularly in the Decade Modulation (DM) system. This inductor is an essential component in the RF circuit, shaping the current waveform and contributing significantly to the overall performance of the radio.

The GRAD 1490-C Decade Inductor is a variable inductor, meaning its inductance value can be adjusted in discrete steps or "decades," allowing for fine-tuning of the RF circuit. Its inductance ranges from 1.5 H to 150 H, with each decade providing a tenfold increase in inductance compared to the previous one. This feature makes it an ideal choice for radio applications requiring precise adjustment of the RF circuit's impedance.

The inductor is constructed using high-quality ferrite material, ensuring excellent magnetic properties and low power loss. Its compact size, measuring 2.2 inches (56 mm) in length and 0.8 inches (20 mm) in diameter, makes it suitable for space-constrained applications. The winding is made of enameled copper wire, providing excellent electrical insulation and ensuring long-term reliability.

The GRAD 1490-C Decade Inductor is housed in a robust epoxy resin case, which offers superior protection against external influences, such as moisture and electromagnetic interference. The case is also designed with a clear top for easy visual inspection of the winding, allowing for quick identification of any potential issues.

This inductor comes with a 50 ohm RF input and output termination, making it compatible with various radio systems. It is also RoHS compliant, ensuring it meets the stringent environmental regulations for the electronics industry. The inductor operates over a wide temperature range, from -40 C to 85 C, making it suitable for use in various operating environments.

In summary, the GRAD 1490-C Decade Inductor is a versatile and high-performance component designed for use in radio applications. Its adjustable inductance, compact size, robust construction, and compatibility with various radio systems make it an essential component for radio engineers and technicians seeking precise control over their RF circuits.

A GR-1490C Genrad Decade Inductor is a type of radio frequency (RF) inductor designed for use in communication systems and radio equipment. Here are some potential pros and cons of purchasing a GR-1490C Genrad Decade Inductor:

1. High Quality: Genrad is known for manufacturing high-quality RF components. The GR-1490C Decade Inductor is no exception. It is built to withstand harsh operating conditions and is designed to provide stable and accurate performance.

2. Versatile: The GR-1490C Decade Inductor is a versatile component that can be used in a wide range of applications, including broadcasting, military communication, and industrial automation. It is available in various tunes and can be used in both CW and SSB applications.

3. Precision Tuning: The decade inductor design allows for precise tuning in small increments, making it an ideal choice for applications that require fine adjustments.

4. Durable: The GR-1490C Decade Inductor is built to last. It is made of high-quality materials and is designed to withstand high power levels and harsh environmental conditions.

5. Consistent Performance: The GR-1490C Decade Inductor is known for its consistent performance. It provides stable and accurate tuning, even under varying temperature and humidity conditions.

1. Cost: The GR-1490C Decade Inductor is a high-performance component, and its price reflects its quality. It may be more expensive than other inductor options on the market.

2. Size: The GR-1490C Decade Inductor is a larger component compared to some other inductor options. This may make it less ideal for applications where space is limited.

3. Complexity: The GR-1490C Decade Inductor is a more complex component than some other inductor options. It may require more expertise to install and use effectively.

The GR-1490C Genrad Decade Inductor is a high-quality, versatile, and precise component that is ideal for applications that require accurate tuning and stable performance. Its durability and consistency make it a reliable choice for harsh operating conditions. However, its cost and size may be a disadvantage for some applications. Ultimately, the decision to purchase a GR-1490C Decade Inductor will depend on the specific requirements of your application and your budget.

If you require a high-performance inductor for a critical application and have the budget for it, the GR-1490C Genrad Decade Inductor is an excellent choice. Its precision tuning, consistent performance, and durability make it a reliable and effective component for a wide range of applications. However, if cost or size is a concern, there may be other inductor options that may be more suitable for your needs. It is recommended to consult with a RF components specialist to determine the best inductor for your specific application.

Details:

One broken knob but still usable. Excellent condition and very clean.

part #: 1490 prices

• $208.52-$499.99

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• brand: General Radio
• mpn: 1490-c

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• Testers Calibrators > Calibrators > Other Calibrators

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• started: March 4, 2025
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