The Class A amplifier - basics and simulation (1/2)

So good to listen to somebody who really knows electronics!

Great work ... I wonder why I didn't get the knowledge of your channel in my college days...

Excellent! You're opening new ways of thoughts to me... I didn't think of the possibilities of coils / transformers in the transistor collector line before.😊

One of the best videos teaching about a certain topic I have ever seen, thanks alot!

Brilliant presentation, to the point, very clear language, no repetitions. I know that it is not really necessary, but it would be interesting if those who cover transistor amplifiers would mention that if one goes into deeper details of the input and output impedance of the transistor amplifier, one finds that for a positive going signal there is a slight difference from the impedance for a negative going signals. This is due to the " diode " characteristics of emitter base junction, Again well done in making this video.

Excellent video. Can't wait for the next video...

👌👍would love 2 see this in a ''physical'' cense!! there's nothing better than having ''physical work'' experience!! I hope U examine ''MATLAB'/simulink''....good luck...

Great video. You covered so many different configurations in a logical order, improving each time from the last. If you don’t mind, where do you learn all the intricate details and different topologies? Especially for RF applications. Certain books?

What do you think of EveryCircuit? How precise is it for real circuit prototyping? I mean the preciseness of the calculations made by it. I am talking about the ergonomics and design related preferences.

Hello, and welcome back!

Can it be made so the resistor on the collector side is inversely proportional to the input voltage resulting in an automatic gain control? And what structures need to be added so the input can be current instead of voltage?

A well designed class A amplifier has a smooth soft sweet sound especially when paired with a good quality well designed class A preamplifier good well designed speakers the sound can’t be beat for something so easy to build yourself. Who cares if it may be bigger, heavier, generates a lot of heat, or only 20% to 40% efficient. They are so easy and cheap to build yourself and sound better then anything you can buy in a big box store like Best Buy or other store.

this is good :)

Great Video. My Suggestion on something New and Fresh in Youtube; How about future videos on microcontrollers EMI susceptibility comparison / Challenge for example STM32 versus formal Atmel versus 6502 versus 8051 versus [option] automobile grade vs [option] military grade etc. in hostile environment with both Conducted and radiated interference whether it can run codes without hiccups? And then next next video on Shielding to improve.

❤️👍

I like the video very helpful thank you for making it and as a thank you I suggest that you start taking a good mineral supplement especially one high in iron because you have a iron deficiency 🙈🙉🙊

I understand the first diagram on negative feedback (top left), and the maths of how (with high local gain) actual gain is determined by the negative feedback. I understand the low left circuit, setting negative feedback by a voltage divider built of 2 resistors. But the leap to the lower right diagram is beyond me. R(L) and R(E) do not seem to implement the same voltage divider as the previous circuit. I'm happy that you're right, and the simulations back you up, but I don't understand why you're right.

class A amplifier series is great 👍. but idk why some people say collector feedback biasing is superior compared to voltage divider biasing?

Thank you so much for your Videos about RF! Im from Germany and the german community doesn´t upload a single video about RF-Amps. I have one question to ask, is there no calculation for the RF-Choke? Greetings from Germany ! ✌

Hi thank you very much indeed After discovering your excellent channel i watched the tutorial video on LTSpice I would like to carry out distortion analysis with LTSpice of some schematics of really basic audio preamps i have found around But i get really strange distortion spectra ... maybe i am setting the parameters wrongly Could you please make a specific video abouy how to perform the distortion analysis of this class A amplifier with LTSpice ? Thank you very much indeed Kind regards, gino