DIÓDA

https://www.youtube.com/watch?v=RMHVSDpiw3U&t=91s

http://vemix.hu/img/33501/160092/160092.jpg?time=1508170325

https://www.google.com/search?q=dioda+fizika+jele&tbm=isch&ved=2ahUKEwif1NLvqKjuAhXTEWMBHeZSBxgQ2-cCegQIABAA&oq=dioda+fizika+jele&gs_lcp=CgNpbWcQAzoCCAA6BAgAEB46BAgAEBM6BggAEB4QEzoICAAQCBAeEBM6BggAEAgQHjoECAAQGFC1ic8BWJ7QzwFgw9PPAWgDcAB4AIABiwGIAaMKkgEEMTMuMpgBAKABAaoBC2d3cy13aXotaW1nwAEB&sclient=img&ei=sPsGYJ-8CdOjjLsP5qWdwAE&bih=969&biw=1920#imgrc=4sJ20HaSnhV9lM

https://hu.wikipedia.org/wiki/Di%C3%B3da

https://www.arwill.hu/termekek/felvezetok/diodak/axialis-do-xx/1n5408-dioda-273746/