Hello and welcome to this annual us on which I will show you how to test a transistor rather than on
how to defy its terminals.
This is a transistor as you can see here has three tournaments and we will test it out and see if it's
working or not and identify its tournaments.
As I mentioned earlier this is basically a diode.
So you have to choose but I would reading from here on the watch and or on the digital multimeter and
you then you can watch these terminals the black one and the common and the red one on the one that
has become so diluted I am so blessed to turn it on.
Now we said that the first would be to identify the two terminals that want to give a reading when they're
together.
So if we came here as you can see it must concentrate on this.
So the two terminals that won't give any reading both ways will be the collector and emitter.
So let me test these these first two.
So no reading.
Let me OK with me at the outset Tumblr and k now as you can see we have a reading on that unseated slowly
over the digital multimeter.
So these are love the tool collector and the emitter.
Let's move on to the next two.
So this one on this one we have no reading.
And again this one and this one we have no reading on that it is day one means no reading.
So this one and this one are the collector and emitter.
So this one is the base.
This is the first step.
So let's throw
to let's it to you.
OK.
Let me just focus on this area.
So we have the base identified.
Now we need to know if this base is all this land for us is beyond beyond beyond what we need to do
is simply first knowing that the base will give an image element with both collector and emitter.
So if we connected the positive term out of the base and if it gave reading with these two terminals
it means that positive means and beyond.
So it will be an unbeaten transistor.
If it doesn't give a reading we will have to reverse it.
We have to contain the negative been here to the base.
And if it give a reading this means that the base is negative or on which means that this is be unbeatable
in the store.
So of start
this is the most if they're not connected to the base and it's connected to this terminal.
It gave readings and density as you can see here.
If you connect it to the other bend but also give a reading.
So this is the base.
It's connected.
The red blob.
This means that it's and beyond transistor.
So and B on the transistor This is the Times on the.
Now the final step which is I didn't find the collector and emitter between these two bands.
Now as I mentioned earlier that one that will give higher measurement when connected to the base will
be the emitter.
So let's connect the positive terminal to the base.
Let's connect this to the spin.
Gave us six hundred seventy five.
It's going to spin six hundred and eighty nine.
So this one has a higher reading which is that this terminal as I mentioned earlier the one that will
give higher leading with the base will be the emitter.
So now we have this as the emitter and the last one is the correct.
So this is our transistor.
It's fully functional.
It's working.
And we did found out that it's.