ALPHA PA-87A Hf Ham Radio Linear Amplifier

( Brand: Alpha ), ( Manufacturer Part Number: PA-87A ), ( Model: ALPHA-87A ), ( Type: Linear Amplifier ), ( Color: Black ), ( Band: Hf ), ( Country/region Of Manufacture: United States )

Review ALPHA 87a Hf Ham Radio Linear Amplifier

The Alpha PA-87A HF Ham Radio Linear Amplifier is a powerhouse device designed for high-frequency (HF) amateur radio communication. This linear amplifier, model 87A, is engineered to deliver exceptional performance, making it an ideal choice for serious ham radio operators.

The Alpha PA-87A boasts a robust output power of 1000 watts PEP (Peak Envelope Power), ensuring your transmissions reach their intended destinations with clarity and strength. It operates efficiently across the HF bands, covering 1.8 to 50 MHz, allowing for versatile communication worldwide.

The amplifier is designed with a solid-state configuration, which guarantees reliable performance and longevity. It features four independent parallel circuits, each using two transistors in a bridge configuration for optimal efficiency and thermal management. The use of high-quality components, such as high-speed driver transistors and high-current final transistors, ensures stable and consistent output power.

The Alpha PA-87A is renowned for its user-friendly design. It features an easy-to-read front panel meter that displays power output, SWR, and temperature, providing valuable information for monitoring the system's status. The amplifier also comes equipped with a built-in automatic antenna tuner, making it simple to match virtually any antenna to the amplifier for optimal performance.

In terms of safety, the Alpha PA-87A includes various protective features, such as a short circuit protection, over temperature protection, and a voltage protection circuit to safeguard the amplifier from potential damage.

In summary, the Alpha PA-87A HF Ham Radio Linear Amplifier is a high-performance, solid-state linear amplifier that offers robust output power, versatile HF coverage, user-friendly design, and comprehensive safety features. Ideal for serious ham radio operators, this amplifier is an essential tool for long-distance communication and enhancing your ham radio experience.

The Alpha PA-87A linear amplifier is a popular choice among Ham Radio enthusiasts due to its high power output and efficient design. Here are some pros and cons to consider before making a purchase.

1. High Power Output: The Alpha PA-87A can deliver up to 1000 watts of radio frequency (RF) power, making it suitable for long-distance communication.

2. Efficiency: With an efficiency rating of around 55%, this amplifier is relatively efficient compared to other linear amplifiers in its class.

3. Durable Construction: The Alpha PA-87A is built with high-quality components and is designed to withstand the rigors of frequent use.

4. Adjustable Output: The amplifier allows for fine-tuning of the output power, which can help prevent overloading of the transmitter.

1. Size and Weight: The Alpha PA-87A is a large and heavy device, which may make it difficult to transport or find a suitable location in your station.

2. Cost: The amplifier is relatively expensive compared to some other linear amplifiers on the market.

3. Complexity: Setting up and operating the Alpha PA-87A requires a good understanding of Ham Radio equipment and electronics.

4. Potential for Overheating: Like all linear amplifiers, the Alpha PA-87A can overheat if not properly cooled, which may require the use of additional cooling fans or a heat sink.

In conclusion, the Alpha PA-87A linear amplifier is a high-power, efficient device that is suitable for long-distance Ham Radio communication. However, it is important to consider its size, weight, cost, complexity, and potential for overheating before making a purchase. If you have the space, budget, and technical knowledge, the Alpha PA-87A could be a valuable addition to your Ham Radio station. If not, there may be other, more compact and affordable linear amplifiers that better suit your needs.

Details:

Please reach out with any questions. All front-panel buttons are present, responsive, and feel solid. For that reason, it is being sold as-is. I do not have the 240V setup required to power and test this amplifier.

Items come from a smoke pet free home. The interior is exceptionally clean, with no signs of neglect or tampering. Up for sale is an Alpha 87A, one of the most highly regarded HF amplifiers ever produced. The case shows only light cosmetic wear in the form of surface scratches, consistent with age and use.

Based on its clean internal condition and careful prior ownership, it appears well preserved is a strong candidate for full functionality once placed into service. The amplifier is fitted with two IMac 3CX800A7 tubes. This unit comes from the estate of John James Diesel and remains in excellent overall condition.

part #: pa87a prices

• $229.99-$3599.99

specifications hamamateuradio:

• brand: Alpha
• mpn: Pa-87a
• model: Alpha-87a
• type: Linear Amplifier
• color: Black
• band: Hf
• country/region of manufacture: United States

shipping hamamateuradio:

• cost: $226.90
• class: Standard
• transit: 5-11 Days
• carrier: USPS
• service: USPS Ground Advantage
• type: Calculated

offer hamamateuradio:

• quantity: 1
• availability: In Stock
• started: August 16, 2025
• options: Ship-to-home
• sold: 0
• best offers: True

seller hamamateuradio:

• rating: 99.7%
• city: Dallas, Texas
• # reviews: 1669

payments hamamateuradio:

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

returns hamamateuradio:

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

general hamamateuradio:

• Radio Communication > Ham, Amateur Radio > Ham Radio Amplifiers
• condition: For parts or not working

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