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Durable Mfj-911h,balun/unbal, Switchable, 1:1 Or 4:1, 10-160m, 300w Cyber Monday Only [tGdD6m9Y]

$18.99 $60.99 -69%

MFJ-911H Balun/Unun Switchable TransformerIntroducing the MFJ-911H, a versatile and powerful balun/unun transformer designed for amateur radio enthusiasts and professionals alike. This innovative switchable transformer allows you to effortlessly swit

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Durable Mfj-911h,balun/unbal, Switchable, 1:1 Or 4:1, 10-160m, 300w Cyber Monday Only [tGdD6m9Y]

MFJ-911H Balun/Unun Switchable Transformer

Introducing the MFJ-911H, a versatile and powerful balun/unun transformer designed for amateur radio enthusiasts and professionals alike. This innovative switchable transformer allows you to effortlessly switch between 1:1 and 4:1 current balun/unun configurations, providing unmatched flexibility in your radio equipment setup. With its broad frequency range of 10-160 MHz and an amazing flat response from 1.8 to 30 MHz, the MFJ-911H is perfect for a wide array of applications.
  • Switchable Transformer – Choose between 1:1 or 4:1 current balun/unun configurations
  • Flat Response – Achieve an impressive flat response from 1.8 to 30 MHz

Technical Specifications and Performance

The MFJ-911H is built to handle the demands of high-power applications, boasting a robust design capable of easily handling 300 Watts. This transmission line transformer utilizes low-permeability ferrite cores to ensure a stable and reliable performance. Whether you are working with balanced or unbalanced loads, the MFJ-911H seamlessly transforms 200 or 50 Ohm loads to 50 Ohms, providing optimal signal transmission.
  • High-Power Handling – Capable of handling up to 300 Watts
  • Wide Frequency Range – Covers 10-160 MHz with an amazing flat response

Practical Applications and Benefits

The MFJ-911H is an essential tool for any amateur radio operator looking to enhance their station's performance. Its practical applications include improving signal strength, reducing interference, and ensuring clear communication over long distances. The MFJ-911H is suitable for use in various radio equipment, such as transceivers, amplifiers, and antennas. With its user-friendly design and exceptional performance, the MFJ-911H is a must-have for both beginners and seasoned radio enthusiasts.
  • Improved Signal Strength – Enhance your communication capabilities
  • Wide Range of Applications – Suitable for use in various radio equipment setups

What Our Customers Say

January 20, 2026

Absolutely no complaints!

This product is a superb choice for its reliability and modern design.

- Cain O..

January 20, 2026

Absolutely no complaints!

This product is a brilliant choice. It's a solid, well-built item.

- Oaklyn N..

January 20, 2026

Absolutely no complaints!

It's a very well-balanced and capable product.

- Macy V..

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