This is the "OG" section of Vilvaran - find a unique form of Electronics Engineering art at it's source; this channel interface and the videos within serve as a direct log of my personal experiences, and Engineering progression. "The work we do is that which nobody has the patience to... ...but those who dare to listen, shall receive."
Learn how to make just about anything, from just about anything; here you may uncover some new ways of viewing the physical world, and just how simple even the most complex of constructions can be. In the end, Electricity is just "Pure Eff'n Magic" - and our work can either be a load of smoke and mirrors; or our Enchantments will endure the trials of life. Let's make something *useful,* not something disappointingly cool-looking, or dishonestly overrated.
Disclaimer: NO responsibility is held for economic loss, or any other forseeable losses incurred by any information provided, or any offence taken from interpretation of; or update to data provided.
Would not exactly call it hopeless, but on some boards with large planes of copper it might be - especially with the little 20W irons! And flux can help, especially on pre-ROHS boards but not in the above situations no. If the circuit board you are salvaging is capable of dissipating the heat as fast as your iron can deliver it, only additional heat will help. And leaded solder, because it lowers that melting point and makes everything 'flow' better...
Maybe - if you push them into each other; however I was gently rolling the solder blob between them to tin up... On the board however, lead free solder can be a bit tricky sometimes, requiring a light push to get through oxides etc. Which is why it's best to use old irons for through hole stuff, this technique is best for SMD though - and there should be no harm to the tips there :)
I have a desoldering gun, but we're not interested in cleaning the board - this was a component harvesting exercise! I save my desoldering braids for the big stuff - no point burning through consumables trying to salvage random components; unless said components are the solid gold kind lol
ohh ok. everyone has different methods. understood. its a bit unique for me i guess or the jobs i try they use thicker flux or thicker compound that requires just shy of a 1,000,00 watt laser. lol
@@bradleylomas7525 Don't worry, It's just shitty solder. Like not even solder anymore, it's more of a tin weld of some kind on these new PCBs! Recall the heat gun, that was a board with high thermal mass AND lead-free solder - a few parts did get scorched...
Old Steel core 50 or 60 Hz mains transformers are ALWAYS worth salvaging , as they can last for ever , and when used to make power supplies are a LOT simpler ( and more reliable ! ) than modern SMPS .. ( tried - n - tested ) ... DAVE™🛑
Yes, It depends on the winding quality and whether or not the plastic has cracked on the winding covers - nothing a few quick measurements etc. can't solve! You can usually tell a good find from a mile a way, those old Zebra transformers in microwaves are extra special - i'm still waiting for mom's old microwave to brak down so I can get the MOT lol (It's a "National" so probably not going to happen for a while I assume) Don't hate on the ole SMPS though, I've seen many fail; but i've also seen how they can work well - usually when over engineered! Most of what I designed recently revolves around getting a stable and efficient switching supply, using a minimal amount of components - but it has taken a full trip into analogue territory with the design of an OPAMP of sorts, and a voltage reference for it being two key elements... The aim is simple: bag of transistors --> Power Source (any)
Wow 3K views in the past 30 days! Check out the latest video (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sBlupEsayTo.html) - These techniques allow you to gather hundreds of components per hour...
Hi. I wonder whether you might have some kind of response to my question on great Scott's video regarding reversing the voltage polarity of the inductor before the field collapses? Would this constitute a changing magnetic flux, whereby a coupled inductor could develop power simply by swapping the polarity?
