• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.


  1. Y

    PNP Transistor - base voltage higher than collector

    Hi guys, Is it ok for the base voltage driving a PNP transistor to be higher than the collector voltage? I'm trying to throw the input to a HS088 doorbell board (see attached) high from a microcontroller in place of the button shown on the schematic - have been testing with Arduino UNO in this...

Latest threads

EE World Online Articles