Hi,

I have a Sangean ATS 606 world radio receiver which was purchased in
1993. The AC-DC adaptor was spoilt years ago and it has been operating
on 3 AA batteries ever since. It operates on a power input of 250mA on
4.5V. Recently I purchased a univeral AC-DC adaptor with a maximum
current output of 500mA. However it can't seem to work with my radio.
The battery compartment gets hotter, but otherwise - nothing happens at
all.

I'm not sure whether my radio or the adaptor is faulty. Does anyone
have advice for me? I can't locate a Sangean service centre here in
Singapore and the electronics shop where I bought the radio from,
closed down many years ago.