Clock works when plugged in, regardless if the radio or Bluetooth is being used. This will not "blow" the speaker, but the sound will start clipping (similar to a CD skipping). This just means the volume needs to be adjusted lower. Please reference photos for accurate condition.
This is an original, 60 year old plastic radio. There are some scuffs and minor discoloration in areas, as well as a small area of chipping on the side. Video of sound quality available upon request!