EF JOHNSON 189-567 Air Panel Mount Rf Amateur Radio E.f.

( Brand: Ef Johnson ), ( Manufacturer Part Number: 189-567 ), ( Mounting Style: Panel Mount. ), ( Type: Variable Capacitor ), ( Capacitor Construction: Air ), ( Termination Style: Pin ), ( Capacitance Rating: 1.7 Pf 11 Pf )

Review EF JOHNSON E.f. Air Variable Panel Mount Rf Amateur Radio

The EF Johnson 189-567 is a high-performance air panel mount RF amplifier designed specifically for amateur radio applications. This amplifier is compact, making it an ideal choice for those with limited space in their radio shack. Measuring just 3.5 inches by 4 inches by 1.2 inches, it can be easily mounted on the exterior of a radio or other equipment enclosure.

The 189-567 amplifier is capable of delivering up to 15 watts of output power on the 2 meter amateur radio band and up to 12 watts on the 70 cm band. It features a wide input power range, allowing it to handle weak signals with ease while also providing sufficient power for strong signals. The amplifier is also equipped with a built-in automatic power control (APC) feature, which helps to prevent damage to the amplifier or the radio by limiting output power when the input power level is too high.

The amplifier is constructed using high-quality components and materials, ensuring reliable and consistent performance. It features a rugged aluminum housing that provides excellent heat dissipation, allowing the amplifier to operate efficiently even in high ambient temperatures. The housing also provides protection against moisture and other environmental hazards, making it suitable for use in various operating conditions.

The 189-567 amplifier is easy to install and use. It comes with a standard SMA female connector for the input and an optional SMA male or BNC connector for the output. The amplifier also includes a status LED that indicates power on and APC status. The amplifier is also compatible with most popular amateur radio transceivers and can be used with both analog and digital modes.

In summary, the EF Johnson 189-567 is a high-power, compact, and rugged air panel mount RF amplifier designed for amateur radio applications. It delivers up to 15 watts of output power on the 2 meter band and up to 12 watts on the 70 cm band, making it an excellent choice for those seeking to enhance their radio's performance. Its automatic power control feature helps to ensure safe operation, while its rugged construction and easy installation make it a practical and reliable addition to any radio shack.

The EF Johnson 189-567 is a high-frequency (HF), air-cooled, RF amplifier designed for amateur radio use. This amplifier is known for its robustness and reliability, making it a popular choice among ham radio operators. In this response, we will discuss the pros and cons of buying a EF Johnson 189-567 RF amplifier for amateur radio use.

1. Power Output: The EF Johnson 189-567 delivers a maximum output power of 567 watts PEP (Plate-Efficiency-Plate) and 113 watts PEP SSB (Single Side Band), which is impressive for an HF amplifier.

2. Robustness and Durability: This amplifier is designed to withstand harsh operating conditions, making it suitable for use in various environments, including mobile and portable applications.

3. Low Distortion: The EF Johnson 189-567 has a low distortion level, which ensures that the amplified signal maintains its clarity and fidelity.

4. Easy to Install: The amplifier has a compact size, making it easy to install in most amateur radio setups.

5. Versatile: The EF Johnson 189-567 can be used for various amateur radio applications, including voice, data, and digital modes.

1. Cost: The EF Johnson 189-567 is a high-performance amplifier, and its price reflects its capabilities. It may be a significant investment for some amateur radio operators.

2. Size: Although the amplifier is compact compared to other HF amplifiers, it still requires a reasonable amount of space.

3. Power Consumption: The EF Johnson 189-567 consumes a significant amount of power, which can increase operating costs for some users.

4. Weight: This amplifier is quite heavy, making it less portable than some other options.

The EF Johnson 189-567 RF amplifier is a high-performance, robust, and reliable option for amateur radio operators who require a powerful and versatile HF amplifier. While it may have some drawbacks, such as its cost, size, power consumption, and weight, the benefits it offers make it a worthwhile investment for those who can afford it.

If you are an amateur radio operator looking for a powerful and reliable HF amplifier, the EF Johnson 189-567 is an excellent choice. However, if cost is a significant concern, you may want to consider other options with similar performance but lower price points. Additionally, if portability is a priority, you may want to explore lighter and more compact alternatives. Overall, the EF Johnson 189-567 is a high-quality and high-performance amplifier that is well-suited for various amateur radio applications.

Details:

6 EF Johnson air variable caps, panel mount and come with a little bracket, used in good condition.

part #: 189567 price

• $24.95

specifications capacitorelectron:

• brand: Ef Johnson
• mpn: 189-567
• mounting style: Panel Mount.
• type: Variable Capacitor
• capacitor construction: Air
• termination style: Pin
• capacitance rating: 1.7 Pf 11 Pf

seller capacitorelectron:

• rating: 99.7%
• city: Fremont, California
• # reviews: 12596

shipping capacitorelectron:

• carrier: USPS
• transit: 3-7 Days
• cost: $8.05
• type: Calculated
• class: Standard
• service: USPS First Class

general capacitorelectron:

• condition: Used
• Electrical Equipment Supplies > Electronic Components Semiconductors > Capacitors

offer capacitorelectron:

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

returns capacitorelectron:

• method: Money back
• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

payments capacitorelectron:

• wallet: Apple-pay
• credit card: Discover
• other

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