http://exvacuo.free.fr/div/Technic/Composants/Transistors/Tableaux/Transistors%20divers%20dont%20germanium%20-%20Caract%C3%A9ristiques%20et%20%C3%A9quivalences.pdf
https://media.digikey.com/pdf/Data%20Sheets/Panasonic%20Semiconductors%20ICs%20PDFs/2SC2631.pdf
991-022794-000 IC: RC4136 MŰVELETI ERŐSÍTŐ 5.50 https://www.ti.com/lit/ds/symlink/rc4136.pdf?ts=1774705626251 https://attilahun.hu/wp-content/uploads/2020/10/elorg.pdf