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HALLICRAFTERS Mixer Coil SX-28 Coil. T17. P/n 51282. 109

51282 Hallicrafters Sx-28 Mixer Coil. T17. P/n 51282. Please See Description #109

( Brand: Hallicrafters ), ( Manufacturer Part Number: 51282 ), ( Type: Mixer Coil ), ( Compatible Model: Sx-28 )

Review HALLICRAFTERS Mixer Coil. T17. P/n Please See #109

The Hallicrafters SX-28 Mixer Coil, identified by its unique part number 109 and designated as the T17 model, is a meticulously crafted component designed to elevate the performance of vintage and modern shortwave radio receivers, particularly those built around the iconic SX-28 chassis. This coil represents a refined blend of engineering precision and historical craftsmanship, tailored to enhance the selectivity, sensitivity, and overall tuning experience of radio enthusiasts who seek clarity and depth in their transmissions. The T17 mixer coil is constructed with high-quality, tightly wound copper wire, ensuring minimal resistance and optimal inductance for superior signal handling across the HF spectrum, typically spanning from 1.5 to 30 MHz. Its compact yet robust design allows for seamless integration into the SX-28 s front-end circuitry, where it plays a pivotal role in mixing incoming signals with those generated by the receiver s local oscillator, thereby producing intermediate frequencies that are both stable and free from interference. Whether deployed in a classic shortwave setup or a restored vintage rig, this coil delivers a noticeable improvement in weak-signal reception, reducing adjacent-channel interference and broadening the dynamic range of the receiver. The Hallicrafters SX-28 mixer coil T17 is not merely an accessory but a critical upgrade for those who demand excellence in radio communication, embodying the legacy of Hallicrafters commitment to quality and innovation in amateur and professional radio technology.

The Hallicrafters SX-28 mixer coil (T17, part number 109) is a component used in shortwave radio receivers, particularly those designed for software-defined radio (SDR) applications or as a standalone mixer for building or upgrading a receiver. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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**Pros:**

1. **Compatibility with Classic and Modern Systems**: The SX-28 mixer coil is designed to work with Hallicrafters receivers, particularly those from the 1970s and 1980s, such as the SX-100, SX-120, and SX-200 series. It can also be adapted for use in modern SDR projects, such as those using the RTL-SDR, HackRF, or other software-defined radio platforms, especially when combined with appropriate circuitry or interfaces.

2. **High Performance for Shortwave**: The T17 coil is optimized for shortwave frequencies, typically covering the 1.5 30 MHz range, which is ideal for amateur radio, DXing, and shortwave listening. Its design allows for good sensitivity and selectivity, which are critical for weak-signal reception.

3. **Modular and Upgradable**: The mixer coil is a modular component, meaning it can be swapped out or upgraded to improve performance. This is particularly useful if you plan to experiment with different frequency ranges or sensitivity levels. Some users also modify or rebuild these coils for enhanced performance.

4. **Community Support and Availability**: Hallicrafters receivers, including their mixer coils, have a dedicated community of enthusiasts and hobbyists. Parts like the SX-28 mixer coil are relatively easy to find on the secondary market, eBay, or through radio clubs. This makes sourcing and troubleshooting easier compared to more obscure or discontinued components.

5. **Educational Value**: For those interested in radio electronics, working with a mixer coil like the SX-28 provides hands-on experience with RF (radio frequency) circuitry, tuning, and signal processing. It s a practical way to learn about the inner workings of superheterodyne receivers.

6. **Cost-Effective Upgrade**: Compared to buying a new or fully rebuilt receiver, purchasing a used or refurbished mixer coil can be a cost-effective way to improve the performance of an existing setup. It often costs significantly less than a complete replacement unit.

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**Cons:**

1. **Age and Wear**: The SX-28 mixer coil, like many Hallicrafters components, is several decades old. This means it may show signs of wear, such as oxidized or corroded contacts, degraded insulation, or worn-out tuning capacitors. These issues can affect performance and may require cleaning, repair, or replacement of parts.

2. **Compatibility Issues**: While the coil is designed for Hallicrafters receivers, compatibility with other brands or modern systems may require additional modifications or adapters. For example, using it in an SDR project might necessitate additional circuitry to interface it with a computer or SDR dongle. Some users report that the coil may not fit or function perfectly in non-Hallicrafters setups without adjustments.

3. **Limited Frequency Range**: The T17 coil is optimized for shortwave frequencies but may not cover all bands effectively, especially if the receiver or surrounding circuitry is not properly aligned. Some users report that it may require tuning adjustments or additional components to achieve optimal performance across the entire range.

4. **Skill Dependency**: Working with a mixer coil like the SX-28 requires a basic understanding of electronics, RF circuits, and possibly soldering or component replacement. Beginners may find the process challenging, especially if the coil is in poor condition or requires modifications. Troubleshooting issues like poor sensitivity or interference can also be complex without experience.

5. **Source Reliability**: While these coils are relatively common, the quality of used or refurbished units can vary widely. Some sellers may not disclose the condition of the coil accurately, leading to disappointment if the unit is damaged or non-functional. It s important to research the seller s reputation and ask detailed questions about the coil s history and condition.

6. **Maintenance Requirements**: Over time, the coil may require maintenance, such as cleaning the tuning slugs, replacing capacitors, or re-soldering connections. This adds to the long-term cost and effort of using the coil, especially if you re not comfortable with basic electronics repairs.

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**Conclusion:**

The Hallicrafters SX-28 mixer coil (T17, PN 109) is a valuable component for shortwave radio enthusiasts, particularly those working with Hallicrafters receivers or SDR projects. Its pros such as compatibility, performance, modularity, and community support make it a practical choice for upgrading or experimenting with receivers. However, its cons, including age-related wear, compatibility limitations, and the need for technical skill, should be carefully considered before purchasing.

If you are an experienced radio enthusiast with some knowledge of electronics and are looking to upgrade a Hallicrafters receiver or integrate the coil into an SDR project, the SX-28 mixer coil can be a worthwhile investment. For beginners or those without technical experience, it may be better to start with a simpler or more modern component, or to seek guidance from experienced hobbyists before attempting to use or modify the coil.

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**Recommendation:**

- **Buy if:** You have a Hallicrafters receiver (e.g., SX-100, SX-120, or SX-200 series) that you want to upgrade, you re comfortable with basic electronics, and you re willing to put in the effort to clean, test, or modify the coil. Alternatively, if you re building an SDR project and are prepared to adapt the coil with additional circuitry, it can be a cost-effective addition.

- **Avoid if:** You lack experience with radio electronics, the coil is being sold without clear information about its condition, or you re not willing to invest time in troubleshooting or repairs. In such cases, consider purchasing a pre-tested or fully refurbished unit from a reputable seller or exploring modern alternatives like dedicated SDR dongles or pre-built receivers.

Before purchasing, thoroughly inspect the coil for signs of damage, test it if possible, and research how it will integrate into your setup. Joining radio forums or communities (e.g., Reddit s r/shortwave or Ham Radio Stack Exchange) can also provide valuable insights and advice from others who have used similar components.

Details:

Hallicrafters SX-28 not A version round coil for oscillator section. Please see below. Its all about restoring/building/fixing the radio and has nothing at to do with selling parts.

part #: 51282 price

  • $10.00

specifications radiparaccessori:

  • brand: Hallicrafters
  • mpn: 51282
  • type: Mixer Coil
  • compatible model: Sx-28

returns radiparaccessori:

  • policy: No Returns

general radiparaccessori:

  • Radio Communication > Parts Accessories > Other Radio Communication Accs
  • condition: Used

offer radiparaccessori:

  • started: February 17, 2026
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home

seller radiparaccessori:

  • # reviews: 1140
  • city: Zephyrhills, Florida
  • rating: 100.0%

shipping radiparaccessori:

  • cost: $0.00
  • class: Standard
  • carrier: USPS
  • service: USPS Ground Advantage
  • type: Fixed
  • transit: 3-8 Days

payments radiparaccessori:

  • other
  • credit card: Discover
  • wallet: Google-pay
type: mixer coil, compatible model: sx-28,
category: electronics > radio communication > radio communication accs, sku: 8386768995140892,
Hallicrafters 51282 Is Similar To:
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5 offers $10.00–$10.00 USD
  • Used. Offer #1 priced at $10.00 + $7.90 shipping estimate = $17.90* total. Hallicrafters (not A version) round coil for the mixer section.+$7.90 shipping
  • Used. Offer #2 priced at $10.00 + $7.90 shipping estimate = $17.90* total. Hallicrafters (not A version) round coil for oscillator section.+$7.90 shipping
  • Used. Offer #3 priced at $10.00 + $7.90 shipping estimate = $17.90* total. Hallicrafters (not A version) round coil for mixer section.+$7.90 shipping
  • Used. Offer #4 priced at $10.00 + $7.90 shipping estimate = $17.90* total. +$7.90 shipping
  • Used. Offer #5 priced at $10.00 + $7.90 shipping estimate = $17.90* total. Hallicrafters (not A version) round coil for RF 2 section.+$7.90 shipping

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