electricity with Mekkor today: sorry, but we also need the transistor

Hello and welcome to another post about electricity *wohooooo*

i actually wanted to post that yesterday but then my internet connection broke down.
So i had to wait half a day to post something new. Damn storm.

Well, last time i said we would make something incredibly interesting. But i have to disappoint you. Sorry, we have to learn some things about another electrical component first.

But this component is really something usefull.
It is the:
Transistor *tadaaaa*

What is an transistor?
A transistor is like a switch where you can regulate how much current flows through it.
A transistor is also an amplifier.
To understand how a transistor as an amplifier works, we would need more info than i already gave you + there are so many different transistors that your head may explode if i explain them all to you.
So we just use the transistor as a switch.

I personally think that this picture explains it really well.

Look, the more water flows though the little red gate, the more it opens the big red gate.
That means:
The more voltage is onto the "Basis" the more opens the "Kollektor" to let more current though.
If there is no voltage onto the "Basis", the "Kollektor" is non-conductive.

Imagine that you have to controll when a current circuit is conductive and when not. You would always have to push a button.
With a transistor, you can controll that without any buttons. The transistor is only conductive if there is voltage onto the "Basis". Thats easier and faster than pushing a button.

But way dont we just use a normal switch instead of this thing? Let me explain it like this:
If we had a perfect switch, what properties should it have.

- endless resistance if non-conductive
- no resistance if conductive
- no wear
- react immediately


A normal switch has:
- endless resistance if non-conductive
- a little resistance if conductive
- wear
- reacts slowly because you have to push a button/flip a switch/whatever and that takes a few milliseconds

A transistor has:
- almost endless resistance if non-conductive
- a little resistance if conductive
- no wear
- reacts immediatly

Now you see, that a transistor is a faster switch than a normal switch, has no wear and can also be used as an amplifier. Clear victory for the transistor.

Now we know (a little) about transistors. Next time we are going to build something... hopefully ^^

Bye :D