Bald Engineering Praying

The next AddOhms Tutorial is how to design a DIY Arduino board. What are the elements you need to include in your own circuit design? While editing the video, I ended up on this frame. It looked to me like I was praying. (At one point I was having serious technical issues with my equipment. But it is unrelated to that frame!) On Twitter, my friend Philip had a different take.

You bring the two hemispheres of Plutonium together like this, and then a short while later...

What caption comes to mind when you see this picture? Leave a comment with yours.

Op-Amp Question

If you can’t think of a caption, maybe you can help with a different question. What your favorite LM741 op amp alternative? I’ve been working on some tutorials and videos on op-amps. I’d like to incorporate something other than the old stand-by.


Fan of making things beep, blink and fly. Created AddOhms. Stream on Twitch. Video Host on element14 Presents and writing for Hackster.IO. Call sign KN6FGY.


  1. What is James doing? Option #1: Slow clap. #2: About to tell us his brilliant plan for taking over the world. #3: Holding back a sneeze. But let’s to the important part, where does one purchase a “Load *,8,1” sticker?????

  2. My old standby is Maxims MAX406 and all it’s relatives. A tad expensive but never fails. Micro-power, very low input bias, very easy to use. recommended by someone who knows their op amps

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