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Quick Transistor lesson for Idyuts

Started by ToadMeister, May 07, 2017, 08:18:01 PM

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ToadMeister

NPN - Arrow ---- Never Points iN    Base is positive
PNP - Arrow ---- Points iN Pal        Base is negative

The arrow indicates old fashioned + to - flow.

Think of a 'BEe' line or 'BE' (Base  Emitter) a charge on the Base (the switch) flows to the Emitter (the BEe line) and then allows a charge path bridge between the emitter and collector.

A photo Resistor is almost the same, but the switch is light, not a charge on the base.

That's all for today, if anyone sees a mistake (Ooooh, I make mistakes alright), or cares to add to this, be my guest.
If things didn't break, we wouldn't learn how to fix them or know how they work, and things wouldn't get made for us to fix.
And there'd nothing to break.

Jazz P Bass

I believe the proper term for the PNP letters is: Points In Perpetually".

Other than that, nice job.

Enzo

Since there are only the two options, I learned it as Not Pointing iN.  I didn;t need one for PNP since it was the only other choice if it wasn;t NPN.

Jazz P Bass