Reusing Electrical Components From Scrapped Stuff

What to look for on discarded electronics boards that might be useful in electronic experiments like joule thief, amplifier, etc. All the basics: LEDs, plugs, switches, resistors, diodes, inductors, capacitors, ... These are from routers and switches. WARNING: Always use proper safety precautions when soldering or de-soldering. Electronics contain toxic materials. Recycle scrap. Do not work on high voltage circuits. If you don't know learn first or don't do it. RELATED VIDEOS - Projects Using toroids, inductors, etc. https://www.youtube.com/watch?v=g2jMrNFV4nQ&t=1s&list=PL3MK4J4ZjdEUr0orHeE4xx3PyzAVnRPJ3&index=4 https://www.youtube.com/watch?v=_wvFv4YVYU0&list=PL3MK4J4ZjdEUr0orHeE4xx3PyzAVnRPJ3&index=20 https://www.youtube.com/watch?v=xn7U16j7IsU&t=6s https://www.youtube.com/watch?v=L0qZ2ttEe4Q