301K views · 1.5K reactions | Back to school - but in a fun way! STEM Box is a DIY electronic kit subscription delivered to your doorstep every 3 months.  Learn more at https://bit.ly/3gYqhLq #engineering | Interesting Engineering | Facebook

511K views · 10K reactions | Transistors how do transistors work. In this video we learn how transistors work, the different types of transistors, electronic circuit basics, how to build a transistor circuit, transistor amplifier, current gain beta, npn, pnp, heat sink, electronics and electrical engineering. Plus more! #engineering #electric | The Engineering Mindset | Facebook