Consider one with stabilised power output when looking for a reliable power supply for small to medium applications such as hobby projects, ham radios, CB radios, small services, schools, or tattoo parlours. Analog technology ensures good performance at a reasonable price point. These power supplies offer interference-free operation, overload protection, and spark lightning protection. They are suitable for various uses with a duty cycle of 70% and a compact metallic enclosure.

These power supplies come with a fixed output voltage of 13.5V, providing stable power for your devices. Additionally, they offer adjustable voltage ranging from 0 to 15V, catering to different requirements. Equipped with analogue or digital V/A meters, users can easily monitor the voltage and current levels. These features make these power supplies versatile and efficient for a wide range of applications. 

In conclusion, power supplies with stabilized output, analogue technology, and adjustable voltage options are ideal for small and medium applications. Their interference-free operation, overload protection, and compact design suit various settings. Whether for hobbyists, schools, or professional services like tattoo parlours, these power supplies offer reliable performance at a competitive price.