This is a new, compatible 9 volt plug in power supply for Roberts radios with a negative centre pin. Often the power supplies are missing from these old radios. If you use the wrong polarity supply it will damage the electronics, making the radio unusable.

**This is a compatible power supply. As it is a switch mode power supply, it is too noisy to be useable on MW or LW. If you listen to FM then it will work perfectly**

Brand new and boxed