I've got this radio which plays perfectly fine when powered from AC.
But when powered from batteries it usually plays fine for a while and then starts making these noises:
(I'm not turning any knobs or pushing buttons, just leaving it on. It makes these noises on all stations, regardless of where I turn the frequency knob)
It's not as loud on batteries as when powered from AC with the knob set to the same loudness, too.
It takes 4 AA batteries.
This radio belongs to an old grandpa.
He wasn't using it in the winter and it seems the radio was left sitting outside in the cold (up to minus 15 - minus 20 C) for a few months. It wasn't sitting in the rain, though.
One battery contact on the radio (the one where the positive of one battery is connected to) wasn't making a good contact, so I melted a bit of solder on it to 'restore' its conductivity. This is the only flaw I could find.
So, anyone got any idea on why it's behaving like this?
But when powered from batteries it usually plays fine for a while and then starts making these noises:
It's not as loud on batteries as when powered from AC with the knob set to the same loudness, too.
It takes 4 AA batteries.
This radio belongs to an old grandpa.
He wasn't using it in the winter and it seems the radio was left sitting outside in the cold (up to minus 15 - minus 20 C) for a few months. It wasn't sitting in the rain, though.
One battery contact on the radio (the one where the positive of one battery is connected to) wasn't making a good contact, so I melted a bit of solder on it to 'restore' its conductivity. This is the only flaw I could find.
So, anyone got any idea on why it's behaving like this?