jkenned5
Member
I was wondering if these are worth removing from the boards or not. When I say "worth" I refer to stacking the metal, not for profit.
The glass diodes are a VERY mixed bag. There are so many types, unless you have a lot from the same era it'll be difficult to deal with them.I will get a picture, those little Schottky diode (glass diode); I keep seeing them so that's why the question. Thanks for the replies
Ah, the little IC transistors. I have about a pound of those. They shouldn't be hard to process by the incineration method used for small chips. Perhaps actually easier, since the legs tend to be tin-plated copper instead of kovar, meaning the simple HCl-CuCl2 process after the plastic's burned away will easily dissolve them, leaving the tiny chip and gold bond wires behind. Rarely, I've even come across some with gold-plated legs. But barely 1 out of 100 are like that.Not sure about the Diodes, but these (circled) generally have a tiny gold bonding wire/wires inside. I doubt it's cost effective to recover gold from these at todays spot price.....I save them anyways, maybe one day they'll be worth the expense. Or whenever you're already processing IC chips you can throw a hand full of these in the mix.
I've been saving those circled little transistors as well. I have almost a pound of them, when I have more experience I plan to toss them in for that negligible increase.Not sure about the Diodes, but these (circled) generally have a tiny gold bonding wire/wires inside. I doubt it's cost effective to recover gold from these at todays spot price.....I save them anyways, maybe one day they'll be worth the expense. Or whenever you're already processing IC chips you can throw a hand full of these in the mix.
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I found about 100 with gold legs with an older style wide cylinder with a dome cap. I broke my ankle before I was able to depopulate the boards.Ah, the little IC transistors. I have about a pound of those. They shouldn't be hard to process by the incineration method used for small chips. Perhaps actually easier, since the legs tend to be tin-plated copper instead of kovar, meaning the simple HCl-CuCl2 process after the plastic's burned away will easily dissolve them, leaving the tiny chip and gold bond wires behind. Rarely, I've even come across some with gold-plated legs. But barely 1 out of 100 are like that.
Just pop one of those red 'sausages' open. If foils' inside, it's trash. If it's a block of black compressed powder, it's tantalum and worth saving.Figured someone would want to see what I was talking about, also I'm pretty sure these sprague resistors are worth saving. I save ceramic capacitors as well and I think the bigger components in the picture are electrolytic capacitors (maybe wrong).
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