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AddOhms

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AddOhms

AddOhms #10: BJTs as Transistors

Every Addohms project follows the same pattern.  About 80% of my original idea makes it into the video while the remaining 20% I make up on the fly.  Of course, when I do that, I spend 80% of my time on that 20%.  AddOhms #10 on BJTs is no different.

For now, there is going to be a two part series on transistors.  #10 is the first part of this two part series.  We cover BJTs here and will cover MOSFETs in the next one.  (And hey, that one is already 20% written!)

Check out Addohms.com or the AddOhms YouTube Channel for more videos.

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AddOhms: Questions and Answers #1

In the past couple of months, AddOhms has caught a little bit of a following.  Nearly every day I have new questions coming my way.  I decided to it was time to address a couple of really good questions in a video response.  Ironically, in the video I mentioned giving “behind the scenes” info with each video.  However, for this one, I don’t really have any.  I can say that the next video is going to be on transistors…

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AddOhms

AddOhms #8: LEDs and Current Limiting Resistors

The idea for AddOhms #8 has been around for quite some time.  I’m always trying to find ways to explain why current limiting resistors are necessary.  So while working in the shop one day, I decided to play with some LEDs and a bench-power supply.  Then I decided to record what happens.

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AddOhms #6: Analog and Digital

It isn’t always clear what is meant by calling a device or a signal “analog” and “digital”.  This AddOhms tutorial explains the difference between analog and digital by using an analogy to clocks.  Old-school clocks with hands are a great example of “analog” while alarm clocks with digits as their display are an excellent example of “digital”.

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Understand the difference between DC and AC

The fifth episode of AddOhms tackled the difference between AC and DC.  One of the things I wanted to stress in this tutorial is that even though the acronyms stand for “current”, they get used to describe voltages as well.  Which, after a video on the difference between voltage and current, seemed like something that needed to be stated.

No behind the scenes for this one, just the finished video.

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