This may not have been damage from a soldering iron actually. This could have been damage from the cable that was originally on these speakers. Something about the rubber on the wires reacts (in warm environments) with the plastic (ABS) and it leaves a mark in the plastic. This happens a lot on vintage keyboards. The way they look close together and parallel to each other, it was either wrapped around the speaker, or it was a coiled cable.
One yank on the cable and it damages the speaker. I'd have put a knot on the cable on the inside of the housing and used hot glue to seal up that hole.
@@ooquis you’re welcome. Also when screwing self tapping screws into plastic, turn the screw backwards into the existing thread and when the screw clicks in, screw it in. That way, you don’t cross thread the housing and prevent cracks from appearing.
I did use 12% hydrogen peroxide(the liquid form) to retrobrite. If there weren't any soldering damage, I would've only used peroxide. From my experience with retrobrite, it only bleaches the top layer of the plastic, so if you sand after a retrobrite session you will expose the yellow layer. So I always polish and sand before I retrobrite.
This may not have been damage from a soldering iron actually. This could have been damage from the cable that was originally on these speakers. Something about the rubber on the wires reacts (in warm environments) with the plastic (ABS) and it leaves a mark in the plastic. This happens a lot on vintage keyboards. The way they look close together and parallel to each other, it was either wrapped around the speaker, or it was a coiled cable.
ah, that makes more sense. as i can't think about what scenario would make that many but relatively consistent soldering marks
Yeah, my old vintage shit had markings like this everywhere, as well. I can assure you we didn't have a soldering iron.
Very informative, thanks a lot. I bought a Dreamcast controller with the same damage, it's good to know what caused this kind of damage.
It's the plasticizers in the vinyl cable jacket that do the damage.
Beautiful! Yt algotithm did me a good one this time
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Perfect, thank you.
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Damn, pretty good shit.
One yank on the cable and it damages the speaker. I'd have put a knot on the cable on the inside of the housing and used hot glue to seal up that hole.
Good suggestion, thanks.
@@ooquis you’re welcome. Also when screwing self tapping screws into plastic, turn the screw backwards into the existing thread and when the screw clicks in, screw it in. That way, you don’t cross thread the housing and prevent cracks from appearing.
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I believe this has a pair speaker that has the amplifier, where is it ?
Why don't we get to hear the speaker?
Sanding seems a bit rough to me. Was using peroxide to remove the yellowing not an option?
I did use 12% hydrogen peroxide(the liquid form) to retrobrite. If there weren't any soldering damage, I would've only used peroxide. From my experience with retrobrite, it only bleaches the top layer of the plastic, so if you sand after a retrobrite session you will expose the yellow layer. So I always polish and sand before I retrobrite.
@ooquis I commented too early. I agree. Thank you for clarifying!