What is worth desoldering from old electronics? || DIY Fume Extractor

In this video I will show you how to build a dirt cheap fume extractor and how you can fastly and easily desolder all kinds of components from old electronics circuits. I will also talk about what I think is even worth desoldering and which parts you should avoid

Music:
2011 Lookalike by Bartlebeats

[vaultdweller]

Desoldering components from stuff that was meant to be used once then thrown away is highly addictive

[trqtqst]

20 years ago it was a challenge to get any high quality parts in Russia. We even scraped all the remaining solder off the boards we were about to recycle for further usage. Even some dead parts were carefully preserved and had some usage in some projects. Nothing was thown away. And today people just toss away perfectly fine top branded capcaitors, high precision resistors and perfectly usable PWM controller ICs just because it is a pain to desolder then pin by pin with no proper tools handy. What a crazy world we are living in.

[karhukivi]

My dad was saving small mechanical and electrical/electronic parts more than 50 years ago and I'm still finding just what I want in his collection - definitely worth doing!

[deltaray]

Last time I picked up a 46" tv next to someone's trash thinking I could get some components. Turned out the TV worked fine but the remote didn't.
College students I swear.

[JustFun-wpmm]

De-soldering and sorting components. Probably the most therapeutic thing you can do!

[BrianPhillipsRC]

I thought I was the only one cheap enough to do this LOL!

[peterlabiak]

One thing worth (really worth!) highlighting is the environmental impact of "parts salvaging". Most of these components use rare materials of require substantial amounts of energy to produce. Re-using them has a massive positive environmental impact and as well as being a great example of circular economy - cradle-to-cradle, a holly grail of CE. Well done!

[feleitks]

“A couple of old circuit boards, ” *proceeds to place thousands of boards on table*

[garymucher]

I realize this is an older video, but one thing you forgot to mention, as you desolder parts you are actually increasing your ability to sold at the same time. It is a reverse method, but you gain the knowledge about soldering in general. And you see how much or little heat it takes to remove parts that way. I used to desolder parts off of thrown out board decades ago and basically removed anything I thought I would need later on. And I did use so many of those parts to experiment on hobby projects that way.

[frager]

One of my teachers in his classroom always has a pile of freshly salvaged boards ready for students to desolder. Also he has EVERY component that I or any other student could need 😀 from little resistors to big filter caps

[OhShitSeriously]

It's worth cutting those wall wart leads a few centimeters behind the plug, instead of right at the strain relief. With some length left over, you can solder on to the plug and reuse it, too.

[saddle]

When you are joining twin cable (like on your 12v fan), cut the wires at different lenghts along the able so they cannot touch each other. You only need one tlength of heat shrink over both at once as well.

[TheBrokenLife]

@2:10

Tip: Since air is compressible, always secure filter media (or any obstruction) to the inlet side of the fan, not he exhaust side. By compressing the air against the obstruction you will create about a 15% decrease in performance. As a side bonus, your fan will also stay clean.

[FilipBonte]

When I was a kid and didn't have lots of money for desoldering pumps or other expensive tools, I used an old injection needle to remove complicated parts like IC's: just remove the sharp injection part by holding it against a power grinding stone for a couple of seconds until it is flush and voilá: just stick the needle over the IC legs one by one and heat it up with your soldering iron: the solder doesn't stick to the needle and pushes the solder aside. Very fast, cheap and leaves your IC's still working fine!

[pinkipromise]

let me save you time
coils, relays, heatsinks, capacitors, motor, switches, push button, transistor, screws, transformer

[funkblack]

I also love to take electronics apart. I'm doing this since 7 or 9. I just have no idea what im looking at, but im saving all sorts of components and boards.

[gordslater]

When you cut off the old DC plug from a PSU to re-use it, leave 50mm of cable attached to the plug so you can use a screw-terminal block with it - handy for bench rig-ups ;)
A major advantage is that you can easily add an extra capacitor at the terminal block to see if your circuit under test requires extra smoothing or RF filtering.

[Sagittarius-A-Star]

"You may not save a lot of money ..." but you do the environment a small favour 👍
Every effort counts.
And I also rescue all screws from old devices for some decades already 🆒

[keithstarnes]

Personally, I do keep capacitors, resistors, ic circuits, and even diodes.

Yes, they are cheap. Easily obtained online. Free shipping even usually. In fact I have new diodes and resistors ect.

I have desoldered many resistors and almost always they test correct.

I also just use flush cutters and clip out diodes with long leads. Just test them with a multi meter.

Personally, I never had a problem with any of it not working.

The value in doing so is many fold.

[mbunds]

A cheap hot air gun lets me remove any component quickly, including DIP's, BGA's, and SMD's of any size sweep off a board by the dozens. But the best way I have found to maintain a stock of components from old boards is not to desolder anything but the largest components, so the boards can be stored compactly, and then attempt to locate schematics/service manuals which will help me identify mystery components, like SMD capacitors which usually have no value markings as SMD resistors do. If I have the schematic in my library, then I know I have the board, and whatever good components are left. As I use parts from a board, I cross them out on the schematic. Boards with no schematic either get cleared off completely, or I will make a file with the board number listing any valuable parts.