jpaul bordon wrote:
Wow, I saw 3 videos out of the series and learned 6 things I did not know, and I have been a techie for 30 plus years. There seem to be no fat in the lecture series either. Boy, I wish I had these video's when I was 17.
When you were 17 we didn't have surface mount capacitors. ;) On your recommendation, I looked at the surface mount electrolytic capacitor removal video and that's a pretty neat trick. I tried it on one of my junk "SMD practice" boards and it worked nicely. I tried the same trick on small rectangular tantalum capacitors and that worked as well. You can't do that with transistors or ICs, though. Also, he has a well equipped shop. A casual tinkerer probably doesn't have a vacuum solder sucker, or even a pair of angled long nose pliers.
I've been building and repairing stuff for about 60 years, and that put me in mind of a removal technique that was common when we had "real" parts - cutting a resistor in the middle while it's still on the board makes it a lot easier to unsoder the two ends separately. The philosophy here is that if it's already broken, it doesn't hurt to break it all the way. A similar technique works with through-hole mounted ICs, where you clip the legs off right at the body and then unsolder and remove them one at a time.
Mr. Carlson seems to enjoy working on old test and radio equipment, and one advantage to that is that there's usually good documentation available so you can do some troubleshooting before you start changing components. So much of what's on my growing "doesn't work but it's too good to throw away" shelf these days barely has a usable operator's manual - no schematics, not parts lists, no block diagrams. So even if you find an obviously blown electrolytic capacitor, you may not be able to determine what to replace it with.