OR Gate from Scratch (How-To, Using Transistors)
Let's build an OR gate from scratch using transistors.
Circuit.js Diagrams from this video are on GitHub: https://github.com/pagekey/education/blob/main/171-AND-Gate/README.md
CircuitJS (In-Browser Simulation): https://www.falstad.com/circuit/circuitjs.html
If you're getting started, I honestly recommend just buying an Arduino kit - they have a little bit of everything in terms of components. I have one from like 10 years ago that I'm still using (at least some of the components in this video are from it). The starter kit is what I used: https://store-usa.arduino.cc/collections/kits/products/arduino-starter-kit-multi-language
If you insist on buying things piecemeal, here are some Amazon Affiliate Links (not necessarily exactly what's used in video):
- Art of Electronics Book: https://amzn.to/40QeJn7
- Arduino: https://amzn.to/4ex57kB
- Transistors: https://amzn.to/498uwQF
- Resistors: https://amzn.to/4eCZ7Xj
- Buttons: https://amzn.to/48SQPtl
- Jumper wires: https://amzn.to/4hIPxVX
Timestamps:
- 0:00 Intro
- 0:19 Overview
- 0:45 PageKey: Take Back Tech
- 1:22 Real-Life Demo
- 1:51 Materials
- 2:25 Truth Table: OR
- 2:42 Logical Diagram (Logisim)
- 3:10 Circuit Diagram (Circuit.js - RTL)
- 3:33 How to Impelement the Circuit on Breadboard
- 4:56 That's it!