NPN and PNP Transistors switches.

232

03:07:50

 A neg-base voltage turns on an PNP transistor.  A pos-base voltage turns on a NPN transistor.
I added a push-pull (3rd from the left) and a pull-push(last on the right) circuits.   Combining the 4 circuits on the left in certain ways will give you push pull circuits as shown on the right.

My youtube channel talks about this
NO ADs!!!                    https://www.youtube.com/watch?v=FUmMvBor7-8

published 7 years ago

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