buzzing noise from elec clock

First try running the lamp via a second extension lead, and if that doesn't help, try moving the lamp about the same distance again away from the radio.

It seems the electronics in the lamp are transmitting interference either along the cable or through free space.

Err - unplug the lamp.

HTH -

It's not unknown for the radio's aerial to be within the mains flex where the earth conductor isn't.

Maybe I should have mentioned I want to keep both plugged in. :-)

Is this a lamp with a transformer or switch mode psu in it by any chance?

Brian

Brian it is one of those lamps that you just tap it and it changes the light ouput (3 different levels) so I guess it must have something built in. It doesnt have an on/off switch, just tap it and it goes off or on.

Try moving them apart. This will show if it's RF or mains borne interference.

Triac controlled by some circuitry which senses the hum induced by your finger when it touches the lamp. The triac can generate RFI when there is no suppression fitted or it is missing. If you radio has poor AM rejection on FM, then that's what's causing your buzzing. Moving them apart, even by a few inches, will help.

I have one of those lights right beside my DAB bedside radio. No problem.

Finally a good word for DAB!

Seriously I'm not surprised. It must surely be designed to reject a little mains hum.

Andy

It won't be a little mains hum. It could be nastly spikes caused by the dimmer, albeit a mains frequency.