COLLINS AM-4823-U Radio Rf Amplifier Preselector Receiver AM-4823/U R-390 390A

( Brand: Collins ), ( Manufacturer Part Number: AM-4823/U ), ( Compatiblebrand: Universal ), ( Type: Other )

Review COLLINS Am-4823/u Radio Rf Amplifier Preselector 390a Receiver Nice

Collins AM-4823/U RF Amplifier Preselector for R-390 & 390A Receivers

The Collins AM-4823/U RF Amplifier Preselector is a remarkable addition to your R-390 and 390A receiver collection, designed by the esteemed Collins Radio Company. This preselector is a testament to Collins' commitment to delivering high-quality, reliable, and efficient radio equipment.

This preselector is meticulously engineered to provide excellent performance in a compact design, ensuring minimal space encroachment in your equipment setup. Its primary function is to improve the front-end selectivity and sensitivity of your R-390 or 390A receiver, thereby enhancing the overall radio performance significantly.

The AM-4823/U employs a sophisticated design that includes a band-pass filter, a tuned amplifier, and a variable attenuator, all of which work harmoniously to minimize harmful interference and improve signal quality. This results in a more refined listening experience, even in challenging radio environments.

The AM-4823/U features an adjustable preselector bandwidth, allowing users to tailor the preselector to their specific needs. This adaptability ensures optimal performance across various radio conditions. The variable attenuator, on the other hand, allows for precise gain control, further enhancing the receiver's selectivity and stability.

The construction of the AM-4823/U is robust and durable, with a rugged aluminum chassis that withstands the rigors of daily use. The control knobs are smooth and responsive, providing an intuitive user experience. The unit's finish is professional and sleek, making it a stylish addition to any radio station or home entertainment setup.

In summary, the Collins AM-4823/U RF Amplifier Preselector is a must-have accessory for any R-390 or 390A receiver owner. Its superior performance, adaptability, durability, and elegant design make it an indispensable tool for serious radio enthusiasts. Upgrade your radio experience today with the Collins AM-4823/U RF Amplifier Preselector.

The Collins AM-4823/U RF Amplifier Preselector for R-390/390A receivers is a specialized piece of equipment designed to enhance the performance of these specific radio receivers. Here are some pros and cons to consider:

1. Improved Reception: The preselector helps to eliminate interference and noise, enhancing the overall reception of the radio. This is particularly beneficial for long-distance or weak signal reception.

2. Boosted Power: The amplifier increases the power output of the radio, allowing for better audio quality and a stronger signal.

3. High Quality: Collins is a well-respected brand in the radio communication industry, known for its high-quality products.

1. Specific Compatibility: This amplifier is designed only for the R-390 and 390A receivers. If you have a different model, this amplifier would not be useful.

2. Cost: The Collins AM-4823/U is a professional-grade device, and as such, it comes with a higher price tag compared to some other amplifiers on the market.

3. Complexity: This amplifier might be too advanced for beginners, as it requires a good understanding of radio technology to set up and use correctly.

If you own a Collins R-390 or 390A receiver and are looking to significantly improve its performance, particularly in terms of reception and power, the Collins AM-4823/U RF Amplifier Preselector could be a worthwhile investment. However, if you're a beginner or have a different receiver model, you might want to consider other options that are more beginner-friendly or compatible with a wider range of receivers. Always ensure that the product is a good fit for your specific needs and technical capabilities before making a purchase.

Details:

We actually have two of these Collins units available, both which came from the same collection and are really nice cosmetic condition with just a few scuffs scratches. If you do not see it in the photos, is likely included sale. The bottom line is this. That includes manuals, packaging, power cords, etc.

This item is being sold strictly as-is for parts or restoration. They're apparently used with the R-390 and R-390A receivers, but I am not sure how they interface. I have no idea when they were last used. Regardless, they should make a great addition to any Collins or military radio collection.

part #: am4823 prices

• $699.99-$3499.99

specifications hamamateuradio:

• brand: Collins
• mpn: Am-4823/u
• compatiblebrand: Universal
• type: Other

shipping hamamateuradio:

• type: Fixed
• cost: $90.00
• class: Standard
• service: Standard
• transit: 3-10 Days

seller hamamateuradio:

• # reviews: 27422
• rating: 100.0%
• city: Sparks, Nevada

offer hamamateuradio:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: December 17, 2025
• quantity: 2

returns hamamateuradio:

• policy: No Returns

general hamamateuradio:

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

payments hamamateuradio:

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

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