If the Degen is looking for 6v dc then whether it comes from a 110 or
220 volt power supply is irrelevant. The important point is whether
the center pin in the connector is negative or positive and whether you
can find one to fit. At one time RS sold power supplies with
changeable tips, so you might check with them. Also make sure the
power supply is rated to just a little over the needs of the radio.
Let me know what you find. I have a 1103 on the way.