Welcome to Boardsortâ„¢ - Learn - Sell - Profit -

Learn to properly Sort, Sell, and Profit from your electronic scrap material.
It is currently Sat Mar 30, 2024 4:54 am


Post new topic Reply to topic  [ 7 posts ] 
Author Message
PostPosted: Wed Jul 19, 2017 6:37 pm 

Joined: Wed Jul 19, 2017 6:26 pm
Posts: 3
After calling a company to try and sell them to who had them listed as New retail $750.00 tell me they can't even sell the preowned ones they have for $90.00 and that I would be better off scraping them. There's some listed on eBay as well with none compleared or sold so I think there just scrap. Check photos thanks.


Attachments:
IMG_1525.JPG
IMG_1525.JPG [ 1.67 MiB | Viewed 5292 times ]
IMG_1526.JPG
IMG_1526.JPG [ 1.11 MiB | Viewed 5292 times ]
IMG_1524.JPG
IMG_1524.JPG [ 669.16 KiB | Viewed 5292 times ]
IMG_1523.JPG
IMG_1523.JPG [ 1.17 MiB | Viewed 5292 times ]
IMG_1522.JPG
IMG_1522.JPG [ 744.51 KiB | Viewed 5292 times ]
Top
 Profile  
 
PostPosted: Wed Jul 19, 2017 6:44 pm 

Joined: Wed Jul 19, 2017 6:26 pm
Posts: 3
Oh yeah the smaller pin has been hit w a torch and then I scratched both I think there gold plated copper. Not sure if anything else on this board holds value


Top
 Profile  
 
PostPosted: Wed Jul 19, 2017 8:04 pm 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9753
Location: Low DOS
They gave me peripheral for similar boards. It's gold plated copper so it falls in line with floppy disk boards.
For peripheral

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
PostPosted: Mon Jul 24, 2017 10:11 am 

Joined: Wed Jul 19, 2017 6:26 pm
Posts: 3
So the pins are magnetic but not that much. It looks like copper underneath someone on a gold refining forum told me that nickel may be in the mix as well. These are from the late 80's early 90's I'm thinkin so I imagine they used more gold since it was cheaper and tech from the day dictated it. They were used at a aluminum refining plant


Top
 Profile  
 
PostPosted: Mon Jul 24, 2017 12:03 pm 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9753
Location: Low DOS
Yes, 86-92ish
There's a nickel base underneath that helps in the plating process. I don't understand the how and why though. That's chemistry. Just the what, that's scrapping, and for, that's technology.
:)

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
PostPosted: Mon Jul 24, 2017 11:36 pm 

Joined: Fri Jan 31, 2014 12:53 pm
Posts: 467
The why is that nickle acts as a barrier layer. With out the nickle, the gold will slowly migrate into the copper and eventually you will loose the continuity of the gold layer. The gold is used to (nearly) eliminate the surface to surface contact resistance between the metallic leads... if you loose enough gold into the copper, the connection goes bad. Any time there is a copper/gold interface (like the gold fingers from cards) there has to be a nickle layer.


Top
 Profile  
 
PostPosted: Tue Jul 25, 2017 12:18 am 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9753
Location: Low DOS
To quote one of the greats, "And now you know...the rest of the story"!
Thanks MLS

On a side not: if you were to cut them off, the board would be midgrade, barely, and depending on the actual nickel content a local or net buyer would pay anywhere from copper rate, or nickel rate. You won't get a gold value from it.
You're in my territory here for what I deal with and I speak from experience when I say it's not worth it. Don't figit with the widgets.

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

cron