SWAN 14-117 Converter Unit Ham Radio Power Supply

( Brand: Swan ), ( Manufacturer Part Number: 14-117 ), ( Country Of Origin: United States ), ( Item Weight: 20 Lbs ), ( Compatible Brand: Universal ), ( Band: Hf ), ( To Fit: Swan Transceivers, Ham Radio Transceiver ), ( Type: Power Supply ), ( Unit Type: Unit ), ( Features: Vintage, Auto-off )

Review SWAN Model Dc Converter Unit Vintage Ham Radio Power Supply

The **Swan 14-117 Converter Unit** is a robust and versatile accessory designed to enhance the functionality of ham radio power supplies, particularly those operating within the 144 MHz (2-meter) band. This high-performance converter unit is engineered to transform a standard 12-volt DC power source into a clean, regulated signal capable of driving a variety of amateur radio transceivers, amplifiers, and linear drivers with precision. Built with a focus on reliability and efficiency, the 14-117 features a compact yet durable construction, making it ideal for both fixed station setups and portable operations where space and weight are considerations. Its internal circuitry is meticulously designed to minimize noise and interference, ensuring optimal performance for sensitive radio equipment while maintaining compliance with FCC regulations. Whether used in conjunction with a dedicated power supply like the Swan 14-116 or integrated into an existing ham shack setup, this converter unit provides the necessary voltage conversion and stability to support high-power transmissions without compromising signal integrity. The unit s robust design includes high-quality components such as low-dropout regulators, over-voltage protection, and thermal management features to safeguard against overheating, extending its operational lifespan even under demanding conditions. Perfect for enthusiasts and professionals alike, the Swan 14-117 converter unit bridges the gap between power supply and radio equipment, delivering the clean, consistent power required for clear, reliable communication across the 2-meter band and beyond.

The **Swan 14-117 Converter Unit** is a popular accessory for amateur radio operators, designed to convert 12V DC power to the 14.4V AC required by many older or modified radios. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Swan 14-117 Converter Unit**

1. **Compatibility with Older Radios** Many vintage or modified radios (such as early Kenwood, Icom, or Yaesu models) require 14.4V AC power rather than standard 12V DC. This converter bridges that gap, allowing these radios to operate from a 12V vehicle or marine battery.

2. **Reliable Performance** The Swan converter is well-regarded for its durability and consistent output. It handles the conversion efficiently, providing stable power to radios without overheating or failing prematurely.

3. **Compact and Portable** The unit is small and lightweight, making it easy to install in vehicles, boats, or portable setups. It doesn t require significant space or complex wiring.

4. **Low Maintenance** Unlike some power supplies that require frequent adjustments or replacements, the Swan converter operates with minimal upkeep. It typically lasts for years with proper usage.

5. **Wide Input Voltage Range** It can handle slight variations in input voltage (e.g., 11.5V to 14V), which is useful in vehicles where battery voltage fluctuates.

6. **No Harmonic Distortion** The design minimizes electrical noise, which is beneficial for sensitive radio receivers that could otherwise pick up interference.

7. **Cost-Effective Alternative** For operators who already have a 12V system, purchasing this converter is often cheaper than buying a new radio or a dedicated 14.4V power supply.

8. **Easy Installation** The unit is straightforward to wire, with clear connections for input (12V DC) and output (14.4V AC). No complex soldering or tuning is required.

9. **Used in Professional Settings** Many marine and aviation operators trust this converter for its reliability, suggesting it s a proven solution in demanding environments.

10. **Backward Compatibility** If you later upgrade to a modern radio that uses 12V DC, you can often repurpose the converter for other low-voltage applications (e.g., powering small DC devices).

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### **Cons of the Swan 14-117 Converter Unit**

1. **Limited to AC-Operated Radios** This converter is only useful for radios that require 14.4V AC. If your radio runs on 12V DC, the converter won t work, and you d need a different solution (e.g., a DC-DC converter or a linear power supply).

2. **Not Ideal for High-Power Applications** While it handles typical amateur radio power levels (e.g., 100W 200W), it may struggle with very high-power transmitters or continuous heavy-duty use. Overloading it could lead to overheating or failure.

3. **No Built-In Protection Features** Unlike modern power supplies, the Swan converter lacks advanced protections such as short-circuit, over-voltage, or reverse-polarity safeguards. Improper wiring could damage the unit or the radio.

4. **Slightly Higher Noise Floor** Some users report that the converter introduces minor electrical noise, which might affect radios with extremely sensitive receivers. This is usually negligible but worth considering for contesting or weak-signal operations.

5. **Deprecated Technology** The Swan converter is an older design (originally from the 1970s 80s) and lacks the efficiency and features of modern switching power supplies. Newer alternatives may offer better performance or additional functionality.

6. **Limited Availability of Parts** Since it s an older model, finding replacement parts or technical support can be difficult compared to contemporary electronics. If the unit fails, repairs may require sourcing parts from vintage suppliers.

7. **No Digital or Smart Features** Unlike modern power supplies with remote monitoring or programmable outputs, the Swan converter offers no adjustable settings or feedback. It s a "set-and-forget" device.

8. **Potential for Overheating in Poor Ventilation** While generally robust, the converter can overheat if installed in an enclosed space without adequate airflow. Proper ventilation is necessary for long-term reliability.

9. **Not Universal** Not all 14.4V AC radios will work perfectly with this converter. Some may require additional filtering or adjustments to the output waveform for optimal performance.

10. **No Guarantee of Long-Term Availability** As electronics evolve, older components like this may become harder to find or obsolete. Buyers should consider whether they want a legacy solution or a more future-proof option.

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### **Conclusion**

The **Swan 14-117 Converter Unit** is a solid, no-frills solution for operators who need to run older 14.4V AC radios from a 12V DC system. Its strengths lie in its simplicity, reliability, and compatibility with vintage equipment. However, it is not a modern power supply and lacks the protections, efficiency, and features of contemporary alternatives.

For **enthusiasts of classic radios, marine operators, or those with limited budgets**, this converter is a practical choice. It s particularly valuable when upgrading a vehicle or boat s radio system where 12V DC is already available.

For **modern setups, high-power applications, or users prioritizing safety and efficiency**, a newer switching power supply or a dedicated 14.4V AC power supply (such as those from **Icom, Yaesu, or third-party brands like MFJ**) may be a better investment. These alternatives often include protections, better efficiency, and digital controls.

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### **Recommendation**

- You own a vintage or modified radio that requires 14.4V AC.

- You re working with a 12V system (e.g., vehicle or marine) and need a simple, reliable solution.

- You re on a budget and don t require advanced features.

- You re comfortable with basic wiring and don t need built-in protections.

- Your radio runs on 12V DC (you d need a different converter).

- You plan to use high-power transmitters or need continuous heavy-duty operation.

- You want modern features like protections, efficiency, or digital controls.

- You re concerned about long-term availability or parts replacement.

For most **modern amateur radio setups**, investing in a **high-quality switching power supply** (e.g., **Icom AL-300, Yaesu FL-300, or MFJ-349**) is often a better long-term choice. However, the Swan converter remains a **proven, cost-effective option for specific use cases**, particularly in legacy systems.

Details:

Everything you see in the pictures is what included this lot. Not saying it won't need adjustments but, looks like a nice clean unit. Photos are the best. I did purchase from a local operator.

I do a lot of business with them and they always have well cared for gear. I am not an operator and don't have the knowledge to fully test myself. Please look at all pictures closely before purchasing. Items may need a more in depth cleaning.

part #: 14117 prices

• $49.99-$109.99

specifications powesupplipar:

• brand: Swan
• mpn: 14-117
• country of origin: United States
• item weight: 20 Lbs
• compatible brand: Universal
• band: Hf
• to fit: Swan Transceivers, Ham Radio Transceiver
• type: Power Supply
• unit type: Unit
• features: Vintage, Auto-off

returns powesupplipar:

• policy: No Returns

seller powesupplipar:

• rating: 99.3%
• city: Federal Way, Washington
• # reviews: 15282

payments powesupplipar:

• credit card: Diners-club
• other
• wallet: Google-pay

general powesupplipar:

• Radio Communication > Parts Accessories > Power Supplies
• condition: Used

shipping powesupplipar:

• carrier: USPS
• service: USPS Ground Advantage
• transit: 5-11 Days
• cost: $24.99
• type: Fixed
• class: Standard

offer powesupplipar:

• sold: 0
• options: Ship-to-home
• started: May 4, 2026
• availability: In Stock
• best offers: True
• quantity: 1

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