This adapter should plug into your radio properly. However, the tip polarity is positive and would need to be reversed by cutting and splicing the wire as your radio is tip negative. This power supply has 3 times the power requirement that your radio requires so it should last a long time.
Many quality radios have the little symbol on the socket denoting tip polarity, and a 'backplate' (mostly) has an input requirement. MAKE SURE THE A/C ADAPTER HAS AT LEAST THE MINIMUM CURRENT REQUIREMENTS (ie 500ma, 750ma, ect) I would take the above suggestion on the swappable tip polarity and then place a piece of tape on the reversible connector so someone doesn't accidentally switch it down the road. Searching the internet for an owners/users manual it best, as well. Have fun!