
( Brand: Sonar ), ( Manufacturer Part Number: SRT-120P ), ( Type: Ham Radio Transmitter ), ( Unit Type: Unit ), ( Color: Black ), ( Band: Sw )
The Sonar SRT-120P Tube Transmitter Power Supply is a versatile and powerful tool designed for use with 3-30 MHz phone and CW (continuous wave) transmitters. This high-quality power supply is equipped with a tube socket that accommodates a variety of tubes, making it a reliable choice for both amateur radio operators and professional users.
The SRT-120P features a high-voltage output of up to 1200 volts, enabling it to drive even the most demanding transmitter tubes. It is equipped with a variable voltage control knob, allowing you to adjust the output voltage to meet the specific needs of your transmitter and tube. The power supply also includes a high-current output of up to 12 amps, ensuring that your transmitter has the power it needs to produce clear and strong signals.
One of the standout features of the Sonar SRT-120P is its built-in high-frequency transformer, which provides excellent regulation and stability. This ensures that the voltage output remains consistent, even under heavy load conditions. Additionally, the power supply includes over-voltage and over-current protection, which helps to prevent damage to your transmitter and tube in the event of a fault.
The Sonar SRT-120P Tube Transmitter Power Supply is built to last, with a rugged metal casing that provides excellent heat dissipation. It is also designed to be easy to use, with clearly labeled controls and a user-friendly interface. The power supply includes multiple safety features, including a ground-isolated AC input and a fused output, ensuring that it is safe to use in a variety of environments.
In summary, the Sonar SRT-120P Tube Transmitter Power Supply is a high-performance and reliable power supply for 3-30 MHz phone and CW transmitters. Its adjustable voltage output, high current capacity, and built-in transformer make it a versatile and powerful tool for amateur radio operators and professional users alike. With its rugged construction, user-friendly interface, and numerous safety features, the Sonar SRT-120P is an excellent choice for anyone looking for a high-quality power supply for their transmitter.
Pros of buying a Sonar SRT-120P Tube Transmitter Power Supply:1. Wide Frequency Range: The Sonar SRT-120P covers a wide frequency range of 3-30 MHz, making it suitable for various applications, including phone and CW (Continuous Wave) operations.
2. High Power Output: This power supply is capable of providing up to 120 watts of output power, which is beneficial for strong signal transmission.
3. Tube Compatibility: It is compatible with various types of tubes, including 813, 6L6, and EL34, providing flexibility in tube selection.
4. Durable Construction: The Sonar SRT-120P is built with high-quality components and has a sturdy design, ensuring longevity and reliable performance.
5. Adjustable Output: The power supply allows for adjustable output, which can be beneficial for fine-tuning transmission settings.
Cons of buying a Sonar SRT-120P Tube Transmitter Power Supply:1. Size and Weight: Due to its robust construction and high power output, the Sonar SRT-120P is significantly larger and heavier than some other power supplies, which may make it less portable.
2. Price: Compared to some digital power supplies, the Sonar SRT-120P may be more expensive, which could be a potential disadvantage for budget-conscious buyers.
3. Requires Tubes: Unlike some modern power supplies, the Sonar SRT-120P requires the use of tubes, which can add to the overall cost and complexity of the setup.
Conclusion:The Sonar SRT-120P Tube Transmitter Power Supply is a robust and powerful option for those seeking a wide frequency range and high power output. Its durability, adjustable output, and tube compatibility are significant advantages. However, its size, weight, and higher cost compared to digital power supplies should be considered. Ultimately, the decision to purchase the Sonar SRT-120P depends on your specific needs and preferences as a user.
Recommendation:If you're looking for a high-performance power supply for phone and CW operations and are willing to invest in a more substantial and costly option, the Sonar SRT-120P Tube Transmitter Power Supply could be a suitable choice. However, if you prioritize portability and affordability, you may want to explore other options on the market.
This is a very nice condition Sonar SRT-120P tube type transmitter for CW and Phone. This is being sold as a restoration project; it looks like the electrolytic have been replaced about 20 years ago and could in storage for that long. Push to talk incorporated in the power supply. Comes with manual schematics; a note on one page and schematic says the meter shunt resistor has been changed should be easy to change back.
Controls and switches move freely. Appears to be complete and unmolested; does power up but transmission has not been tested. All tubes present; uses two 12BY7, 5894, 6CB6, 12AT7, 6L6GB, 6BF5 and 0A2. It has the built-in PS-501 power supply designed for this transmitter that uses two 5U4.