Making a Circuit from a Schematic -- The Learning Circuit 34

Thanks, but in reality that's not how it works.

Let me explain myself.

One thing is theory.

Another thing is looking at the component on a simple circuit.

But the one thing I cant never find, is a single tutorial or lesson on the component role on a complex circuit board, and answer questions like: Why that specific component? why if I remove a component the results remain the same? why two transistors when only one can the the job? what components are there only for safety rather than another particular function?

You cant expect somebody to use simple theory and then put it in practice on a complex real scenario.

Cant find a single lesson all over the internet where it explains what happens to voltage and current, step-by step, though a circuit like the one in this lesson.

Thanks.

Hi Harold,

To determine the role of each component you will need to understand how each component works. There are lots of books that might help explain if you aren't interested in videos. I think the basis of your question though is how does electricity work. Voltage is a difference in energy levels and current is the flow of electrons that move to balance the difference. In the process energy from the moving electrons can change to other forms of energy like heat, magnetism, sound, light, kinetic energy, and potential energy. When current passes through a component this change occurs and when the current has passed through it either goes through the next component or it returns to the energy source that is producing the Voltage difference. If you get the hang of how electricity works and the laws that it follows you will be able to understand what is happening with each component.

John

Big Question here:

Where can I find how everything on this circuit works?

Whats the role of each component? Why do I even need a particular component? What happens to the current when it passes a component?

Please don't send me to a "how components works"  video that's not the question.

Whoops. Thanks for pointing that out! It was on my original list. Must have just missed it. I'll get that added on.

Thanks Karen!

What a great idea using Fritzing to pre-layout the components. That sure makes the finished project a lot neater.

Cheers,

-Nico

ps, Is the kit missing the perf board, or was that by design?

My main motivation for getting the vice was because of filming. It keeps the board in the same place and we don't have to adjust the focus of the camera when flipping the board over back and forth. But now that I've used it, it's just so nice! I need to pickup a second one so I can have one at home as well as in the studio.

Years ago when first learning to make a PCB, I bumped into this document online:  http://alternatezone.com/electronics/files/PCBDesignTutorialRevA.pdf

It was published around 2004.

A few months ago, it dawned on me, it was authored by The Dave Jones - of EEVBlog before he ever got is global fame.

It is an awesome reference on how to lay out your nodes for PCBs.

See ya',

Sean

Hi Karen,

A great fun project and the process of assembly from a schematic was well covered. I have to get one of those swivel vises.

John