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Just looking to classify these. Some of the cell phones boards are broken where would they fall?

Image 33/34
The big finger card looks like chromium nickel. And there's no ICs on the gold finger card. The blank is silver nickel copper.
All are peripheral

29/30
Those creaton boards are always debatable. Top one is definitely peripheral. Bottom left (top/face view) is probably peripheral and bottom right is probably telco

27/28
Top left is peripheral
Bottom two are telco
Top right is at least telco. However I'd personally cut off the capacitor and put it in cell class. It's definitely a high grade board

25/26
Textbook telco

23/24
All cell phone board class
And with that batch I'd definitely be tossing the one from 28 in ON TOP with a small postit saying think so.

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Hi Lostinlodos,

Thank you again for the help. I wanted to ask what the downgrade would be if I cut the gold fingers off the card in pic 33/34. I only have 9 of them. I have a pile of gold fingers but it is less than a pound and I am thinking this would be a good way of adding a little bit of weight.

So I went ahead and cut the fingers, figured I could afford the risk. :-)

So the cards complete came to 3.2oz@$1.25/lb = .25

The gold fingers alone weighted in at .2oz@$28/lb = .35

With the fingers gone I guess they would fall to mid-grade so
3oz@$.20/lb = .04

So it is $.25 complete compared to $.39 separated.

Not worth in my mind for this volume. If I was better at math I would extrapolate values for a higher volume.

Ok, I think I figured out some math.

The gold fingers represent 6.25% of the weight of the complete card.

So if we had 160oz(10lbs) of these untrimmed. That would yield 10oz of fingers, and 150oz of mid-grade.

Trimmed:
10oz@$28/lb = $17.50
150oz@$.20/lb = $1.87
Total = $19.37

UnTrimmed:
160oz@$1.25/lb = $12.50
Total = $12.50

So if my math is correct for 10lbs of these cards which have gold fingers, but do not qualify as GFC you would earn an extra $6.87 by trimming.

Worth it?

Looks like it. :)

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