Introduction to PNP transistors (20-Transistors)

Comments · 128

• PE

  @pebbleschan6085 · 2 years ago

  PNP I’m like dynamite, PNP I can drive a light, PNP with a power load, PNP, too much and I’ll explode!!! - from AC/DC! Rockin! 😂

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• BR

  @brianhanson9367 · 2 years ago

  In the Navy we learned a way to easily distinguish pnp and npn transistors. Looking at the emitter, it’s either ‘pointed in from the perimeter (pnp)’ or ‘not pointed in (npn). That was 50 years ago and I still remember it.

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• TH

  @thelecko481 · 7 months ago (edited)

  This is literally the best foundational video for PNP transistors I have seen yet! Thank you

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• AN

  @anithasshenoy6662 · 1 month ago

  Thank you for such a wonderful and clear explanation.

• GE

  @geoffrees4750 · 2 years ago

  Excellent tutorials Aaron. Having been in the electronics industry all my working life, I can still learn from your methods of these basic &nbsp;<br>Lessons on bipolar transistors. It will be great for the next generations coming through to follow your tutorials. Keep up the good work.

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• RA

  @Ray_of_Light62 · 1 year ago

  Historically, when manufacturers begun making power PNP silicon transistors - complimentary to existing NPN transistors - they realized such transistors required 2.5x the amount of doped silicon, compared to the NPN models.<br>The theoretical calculations, based on Fermi Sea of carriers, didn&apos;t anticipate this. In the end, it took ten years before fully complementary NPN - PNP transistor pairs were commercialised. It remains true that PNP transistors are more prone to faults - the base shorts for no reasons.<br>I find PNP transistors to be a life-saver for all my DC-coupled, differential designs, Schmitt triggers, and digital designs.<br>Also, a well designed high power complementary audio output stage is better than a MOSFET design, provided the feedback avoid transistors saturation - at all costs.<br>Thank you for your videos!<br>Greetings,<br>Anthony

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• SA

  @SashaXXY · 2 years ago (edited)

  I&apos;m a hobbyist -- learned by trial and error. I&apos;ve never been scared of numbers but I seldom bother to look at them when building circuits. So long as the arrows point the right way and the currents look like they&apos;re going to be well within tolerance, my stuff mostly kind of works, since I don&apos;t build anything fancy. But needless to say, I&apos;ve blown up my share of components.<br>Anyway, I&apos;ve always stayed away from PNP because I didn&apos;t know what to do with them. A few seconds into the video I had the Eurika moment. And the rest of the tutorial was cool too. Subbed. Looking forward to learning more. Thank you!

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• NE

  @Necrozene · 2 years ago

  Since I was a kid, I remember that the arrow points to &quot;N&quot;. Nice. I like to revise things, and consolidate my understanding. Thank you

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• DA

  @danstark462 · 2 years ago (edited)

  I enjoyed learning biasing calculation analysis. This is better than text book reading. You are very clear, explaining is complete. Thanks.

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• DA

  @darrenmurphy6251 · 2 years ago (edited)

  thank you , for over 25 years i never understood why complementary audio output stages are considered &quot;sub optimal&quot; in favour of npn +npn totem pole output with phase invertion on one

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• SW

  @SW-qr8qe · 2 years ago

  Thanks<br>An unexpected but useful lesson in my daily YouTubing

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• RO

  @ronjones4069 · 2 years ago

  I just stumbled on this excellent tutorial. &nbsp;I am going to enjoy carching up on some reviews and new material.

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