1
Science Experiments / Re: What sound would electric toothbrush vibrations cut into a vinyl record blank?
« on: 11/09/2016 18:02:53 »I don't know if that would sound like an electric toothbrush.Yes it does. If you look at the design of the early recording machines the mechanical microphone - diaphragm - connects directly to the stylus in order to cut the groove. All that changed was an electrical circuit to add sensitivity and drive the transducer.
You can demonstrate this by putting your ear close to the stylus of a record player and you can hear faint sound of music - works better with some records than others.
you mean the Edison phonograph? No electricity was required, but the sounds needed to get inside a horn. The idea of the toothbrush I am talking about is not about sounds or microphones, but just a way of creating different grooves shapes randomly, without any music, tapping the stylus up, down, left right, tapping it with your hands, setting different speeds on the toothbrush, etc, while the master is spinning on the turntable.