@andreelb
I've had a basic understanding of what a transistor does for a decade and a half. But it was seemingly impossible for me to ever use them in practice, mostly because I would not know which specific one to use for my ideas, but also because of all the obscure little details like pulldown resistors, bias voltages, etc. Having a guide like this that actually shows you how a general purpose transistor can be used in a variety of ways is gold! It's really easy to follow along when the unknowns are already figured out for you!
@StataProfessor
In my last 30 years, I always wanted to understand transistors, but nobody made it so simple, finally I have learned about transistors. Such a great teacher.
@fvgoya
I'm extremely beginner about electronics. This video is one one the MOST AWESOME and EASY to undrstand about Transistors. I Never saw an explanation a PRACTICAL EXAMPLE like this one. No kidding. This videos is AMAZING!!!!!. Thank you very much.
@LetsFlyRC
Watched the whole thing. Really love that you did this. I hope you keep doing more like this. :) Back in the early days of my career, because I was taught “how” relays worked, and not just “follow the instructions”, I was able to design my own latching relay with multiple bosch 5 leg 12v automotive relays, and I was so psyched that I could, then make all kinds of circuits in car audio. I, recently worked with Cheng Lin from CLRacing to create a product for car video screens in Polaris Slingshot vehicles, for multiple camera views, based on left, right blinker or reverse. Basically, the car had 4 cameras and it would choose the camera based on the status of the signal lights. Pretty easy circuit to design, but, it was cool to see it come to life.
@RodCleaves
I taught classes like this from 1968 until 1999. You're much better, thanks.
@voltampscircuits
It's difficult to find someone that builds a miniature circuit as a demonstration with different components other than resistors. I have to agree with everyone else of how cool it is. This is inspirational and gives me something to look forward to as I continue to improve. Thanks for uploading this video.
@kylepatrickmccrary2781
I'm currently in the process of "refreshing" my knowledge from engineering school - by working on side projects that I've wanted to tinker around with for a while now. But building a project from scratch has never been my strong suit. College was very rough for me. Even at the time, I knew that I never broke down the fundamentals enough to truly grasp what was going on. I was able to learn enough to pass the courses, but never fully knew how to apply the college studies to real life projects. I thought I was dumb, but over time realized that a lot of students felt the same at the time - just doing what they can to survive the courses. I've even had imposter syndrome working as an engineer, at times. Thank you so much for the way you teach!! I truly am inspired to continue with my DIYs, and I can't believe how much I just comprehended from this one video!
@TailHeavyProductions
Love the simplicity in your explanations. Nice stuff, Chad!
@rishik6479
I hope you won't stop uploading these types of videos. I've always been confused why there are so many resistors. You showed me why we need it by intentionally burning one of your LEDs. Thank you. We need people like you to make us understand even the minute details. You are making electronics interesting for everyone.
@emelko84
I wish the teachers at the universities will speak so simple like this man. FINALLY I understood how the transistor works. A BIG THANK YOU!
@SrichakradharReddyNagireddy
I resonate with every comment here. You re-defined how the knowledge is meant to be passed on and reminded people that math is a representation of observations and can never be equal to the observation itself. This demo fired more neurons in my brain about the use of transistor than all of my 4 year undergrad syllabus did! Thanks a ton for putting actually useful stuff in here, instead of all mumbo jumbo. Hope to see more such useful stuff! I wanted to share my thoughts as they I passed between my ears. 11:47 actually nothing is happening - because there is an invisible barrier to lift the right transistor from ground to positive voltage, whereas the first transistor is in a more stable configuration with it's carriers having already crossed the depletion region. 12:40 when you add a RC circuit, it helps push the first transistor out of it's stable state by increasing the current flowing into the first transistor which triggers a voltage drop at the second transistor there by reducing the barrier to turn it off. If you added voltmeters at each of the nodes, these change would become more evident and we can see that the circuit is in a stable configuration even with a loop when RC circuit was not added.
@lorettacaputo6997
Great video. Many years ago I was very active in HO model railroading. I built crossing gate flashers and block occupancy detector circuits. The block occupancy detectors were known as twin t circuits using the 2N2222 transistors. When a train occupied a block of track, it acted as a short in the circuit and altered the illumination of led's in signals on the layout. Green for clear track, red for occupied track and yellow for a train in advance of the train. It was cool watching the signals change on the basis of where it was on the layout. I still have the circuits on PC boards, but the layout is gone. Thanks for giving me a better understanding on what I was doing when I put it all together.
@kushagrakumar9184
I have been struggling to understand how transistors, BJT's, MOSFET's work. All i knew was that they can act as switch and amplifiers. You explained the the concept perfectly. 10/10. Wish i saw this video a few years ago.
@frasermderry
Very well explained and demonstrated. I'm a retired EE (1973) and found your video quite interesting. Thanks.
@mahdi2592
this is one of the best detailed videos about electronics . Thanks
@patdowling5
This is really great, thanks for the explanation. Particularly liked the basics and concept method and how you grew it into a very useful circuit. Love the format too. Please do more. Great channel too, greetings from Ireland
@AlbertoGoldX
Wooooow! What a fantastic video! I am an electrical engineer from an Ivy League and let me tell you you man are literally a jewel of a teacher making the topic easy to understand motivating the topic with a fun circuit. Motivate and teach in a playful and special way. Thank you very much for your videos and your time. Most splendid. ❤
@evanderturner4175
This video is brilliant. For anyone else who got stuck at the simple oscillator (both my LEDS went off when I connected the collector leg of the first resistor to the 'input' or base leg of the other one), using a 10K resistor rather than a bare wire solved my problems as my voltage coming in was a little higher.
@unicornlauncher
Please make a series of these ! I’m learning about electronics and your by far the easiest to follow along too
@Roadking1965