[aerohead]

Originally Posted by freebeard

That's the spirit. It reminds me of trying to keep Type III fuel injection working after the heat sensor went unobtainium.

Some electrolytic caps are cylinders with an X embossed in the top. The is a safety valve so they erupt instead of exploding. Also check for scorch marks, bulging, &etc.

Oscilloscopes are cool. When you zoom in on a square wave and start seeing details emerge it's like a fractal.

I'm a fan of the AvE Youtube channel. While he's mostly a machinist he did a video recently whee he wanted to make an LED blink and he just started throwing components on a breadboard and explaining how each one got him closer until it worked.

https://www.youtube.com/user/arduinoversusevil/videos

Scroll down the list and see what you think. In the BOLTR series he tears down power tools and demonstrates knowledge of machining, circuit board design, molded plastics, nutrition, history — it's amazing.

This will be fun to look at.Thanks!