Hi
I’ve been trying to build a device that transmits music over a laser. The video I’ve been basing it on is here: https://www.youtube.com/watch?v=DtCwJU6YMaA . There is a circuit at the end of the video for the materials you need. In the circuit diagram, there is an audio transformer right at the beginning where the 3.5mm jack is. I plan to run it off my phone. I have been searching for the transformer with these specs, however I cannot seem to find it. Could someone help me find the transformer? Thanks in advance.