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PostPosted: Sun Jan 29, 2017 3:16 pm 

Joined: Sat Jan 21, 2017 4:20 pm
Posts: 3
This is probably a very stupid question and I'm probably missing something when I tried to search online but...

Is the shiny gold / multi colors metal used in this old stereo a specific type of metal?

I know it's some form of steel or something because mag sticks.

I also know it's not worth anything but I'm just curious.

Thank you for your time.

Any tips on stuff that may be valuable to keep and collect off old stereo equipment? Boards are low grade but anything on them I should keep?


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PostPosted: Sun Jan 29, 2017 4:37 pm 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 3062
Location: Low DOS
The boards in these would normally get midgrade from a buyer like boardsort, low grade from a three tier buyer where mid grade is motherboards and finger cards.
Many large yard buyers will give you CBM #1 or copper recovery prime rate. They're better than modern low grade in the recycling process.

Your correct that the shells are NOT run of the mill steel. They're a high density alloy! I don't recall the USSI number for it but it's mostly nickel and manganese with iron. Problem is you have two requirements here. 1) your buyer needs to have an xrf gun or be competent in spark testing. 2) you need enough to be worth their while to test it. Ideally you'd get about $1.50-$2 per lb but in reality at today's rates you'll probably get a 200 series rate or a 10x rate at 40c-80c per lb.
I've found it's not worth arguing either.

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-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.


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PostPosted: Sun Jan 29, 2017 4:51 pm 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 3062
Location: Low DOS
Boards like this have lots of nickel aluminium some small amount of silver and magnesium. Unfortunately there's also LOTS of lead Pb in them.
So my first word of advice is no heat guns or torching.
If you do start dissecting stuff, use gloves. Surgical gloves from a pharmacy ($1-$3 per box) not cloth work gloves. Then any small fragments and powders can be safely disposed of.
I use extra large gloves from walmart and put them over my work gloves.
This is a case where you're better off letting the pros do it.
Your health and wellbeing isn't worth the quick buck.
When breaking these down I use the double gloves notes above and a pair of wire snips with a beak tip. Anything that doesn't easily cut on its own stays on the board and the mostly depopulated board goes with my blanks and low grade shred.
Again don't try heating this stuff up or you'll regret it 10 years from now.

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-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.


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PostPosted: Sun Jan 29, 2017 7:17 pm 

Joined: Sat Jan 21, 2017 4:20 pm
Posts: 3
Thank you for your time and expertise.

Also, THANK YOU SO MUCH for informing me of the harmful substances in the boards.
I never even thought about that and here I am taking it apart with a screwdriver on the kitchen table with my 18 month old near by.
I feel so stupid. I knew heating them created harmful fumes but I did not know handling them was bad.


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PostPosted: Sun Jan 29, 2017 9:52 pm 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 3062
Location: Low DOS
What you don't want to do is wind up with that in your skin. Putting surgical gloves OVER your work gloves keeps you from washing your work gloves quite as much. ;)

Honest reality is for all we do know we know very little about what Pb does to the body and better safe than sorry.

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-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.


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PostPosted: Sun Jan 29, 2017 11:46 pm 

Joined: Sat Jan 21, 2017 4:20 pm
Posts: 3
Is the nickle type metal one of those things that the hillbilly scrap yard worker in my small town is going to claim is regular steel? I blew his mind when I brought copper that was blue, he at first refused to accept it.

Also, are there any components that may be made of complete nickle or anything?

Some of the smaller components seem to be of greater color.

One of the boards is from a very old military radio. It has some gold on it I can see. Was silver used on boards like that?


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PostPosted: Mon Jan 30, 2017 12:07 am 

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 3062
Location: Low DOS
It's not just hillbillies. "Steel is steel what are you some kind of stupid?"
Want to really blow their mind bring in permalloy and do the magic magnet trick.
I convinced a rather rude and nasty guy once that a steel rim was aluminium because my magnet worked fine on everything else and not on my rim. His magnet must be faulty.
He tossed his magnet in the iron pile. =]

Yes. Quite a bit of nickel in those old radios, silver too. And yes the older you go the more gold palladium and platinum you'll find. Rhodium, tin, copper brass etc. Good stuff as long as your careful of the hazards, vacuum tubes and ancient fly wheel caps. Zap. Lead, yuck. Sharp points, ouch. Asbestos, cough cough.
You get the idea. Pre Korea and you'll make a nice haul.

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-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.


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