There are a few reasons why your turntable might hum when you touch it. One possibility is that there is a ground loop. A ground loop is a common cause of humming in audio equipment. It occurs when two or more devices are plugged into the same outlet, but they have different ground connections. This can create a loop of electricity that can cause the turntable to hum.
Another possibility is that there is interference from other electronic devices. Turntables can pick up interference from power lines, TVs, and computers. This interference can cause the turntable to hum or buzz.
Finally, it is also possible that there is a problem with the turntable itself. The turntable’s motor or bearings may be faulty, which can cause it to hum.
Here are some things you can do to troubleshoot the humming:
- Check for a ground loop: You can check for a ground loop by unplugging all of the devices that are connected to the same outlet as the turntable. If the humming stops, then you have a ground loop. To fix the ground loop, you can use a ground loop isolator.
- Check for interference: You can check for interference by unplugging the turntable from the amplifier or other audio source. If the humming stops, then the interference is coming from the amplifier or other audio source. To fix the interference, you can try moving the turntable away from the amplifier or other audio source.
- Check the turntable: If you have checked for a ground loop and interference and the humming is still there, then you may need to check the turntable itself. You can do this by connecting the turntable to a different amplifier or audio source. If the humming is still there, then the turntable may be faulty.
If you have tried all of the above and you are still experiencing a humming noise, then you may need to contact a qualified technician for help.
