Waveform Generator Record Player
When you need a Waveform Generator but just have a Record Player the obvious solution is to create a Waveform Generator Record Player.  This creation uses a 3D printed head for the record player arm and has some simple optics mounted. Similar optics that would be used in a line following car feedback the pattern. Swapping the disk changes the pattern. “The light sensor is a 3 mm Everlight ALS-PT204-6C/L177. It was