Hello, the slimmed-down inverter is not suitable for radio reception, since "growling noises" occur. For simple insensitive devices, such as soldering iron, it is suitable. For sensitive devices, I recommend the next larger sine inverter. I have had a very good experience with this. Schol. SVB: Any "growling noises" (50 Hz hum) can usually be prevented or greatly reduced by a grounding line.