ATENTION AT GOLD PLATED BOARDS!

[mythen10]

Big ATENTION when you buy gold plated boards becouse many are just flash plated with very very small amount of gold (you will need 10 kg of boards to get 0.5gr of gold), in general all HP new and vintage boards are gold plated but contain very small amount of gold in the pictures you will se that 4 pieces are cut from vintage HP boards and is just flash plated and that another 2 vintage boards are just flash plated, so big ATENTION when buy plated boards becouse is not worth to process them.

 

[galenrog]

That topic has been discussed innumerable times on the forum.

Time for more coffee.

 

[4metals]

Big ATENTION when you buy gold plated boards becouse many are just flash plated with very very small amount of gold (you will need 10 kg of boards to get 0.5gr of gold), in general all HP new and vintage boards are gold plated but contain very small amount of gold in the pictures you will se that 4 pieces are cut from vintage HP boards and is just flash plated and that another 2 vintage boards are just flash plated, so big ATENTION when buy plated boards becouse is not worth to process them.

Your numbers seem to be considerably less than the industry average for circuit board scrap. It is worth processing boards when set up properly. Posting lower numbers here may benefit you when buying but does little to inform sellers.

 

[mythen10]

Your numbers seem to be considerably less than the industry average for circuit board scrap. It is worth processing boards when set up properly. Posting lower numbers here may benefit you when buying but does little to inform sellers.

this is the truth many gold plated beautiful shiny boards don't have enough gold to be worth precessing them , and second me I don't buy ewaste but this boards can be a really scam because are very gold shiny, first you must check the boards cutting off a plated corner and put in dilute Nitric if the foil come down like the fingers (in one piece or couple big pieces) is a good grade if come down in thousands of small (in general golden pink colour) pieces like in photos is low low grade and is not worth for process.
THIS BOARDS CAN BE A REALLY SCAM so ATENTION when buying.

 

[mythen10]

hhhh smells like bunny.

 

[Yggdrasil]

hhhh smells like bunny.

Since you are the only one supplying information here, it would be nice if you informed about what's smelling like bunny!

 

[4metals]

Your figures, half a gram per 10 kg, translates to $1.00 a pound in value. That is a gross understatement if you factor in other metals. True you could probably find 10 kg of low grade boards which yield that low, but a ton never is comprised of all material that is at the absolute bottom of the value list.

 

[BlackLabel]

mythen10,
Did you collect the metal transistors from these boards? They should give you a better yield.

 

[orvi]

Big ATENTION when you buy gold plated boards becouse many are just flash plated with very very small amount of gold (you will need 10 kg of boards to get 0.5gr of gold), in general all HP new and vintage boards are gold plated but contain very small amount of gold in the pictures you will se that 4 pieces are cut from vintage HP boards and is just flash plated and that another 2 vintage boards are just flash plated, so big ATENTION when buy plated boards becouse is not worth to process them.

These boards does not look so terrible, altough little value I found by simple looking at pics. Plating should be tested with nitric drop test when buying - to distinguish ENIG from thick gold plating. Easy practice, discussed here numerous times. Plating is a nice bonus, you need to find the values inside the transistors, IC chips and other stuff.

 

[mythen10]

mythen10,
Did you collect the metal transistors from these boards? They should give you a better yield.

I make reference strictly to empty plated boards

 

[mythen10]

These boards does not look so terrible, altough little value I found by simple looking at pics. Plating should be tested with nitric drop test when buying - to distinguish ENIG from thick gold plating. Easy practice, discussed here numerous times. Plating is a nice bonus, you need to find the values inside the transistors, IC chips and other stuff.

I make reference strictly to plated boards

 

[mythen10]

I make reference strictly to plated boards

EMPTY plated boards

 

[mythen10]

Your figures, half a gram per 10 kg, translates to $1.00 a pound in value. That is a gross understatement if you factor in other metals. True you could probably find 10 kg of low grade boards which yield that low, but a ton never is comprised of all material that is at the absolute bottom of the value list.

I make reference strictly to empty boards with gold plated gold plated and is logik like 10 kg of empty plated boards to have just 0.5 gr of 24k gold , I give you just a example to make a comparation are a lot of type of FULL PLATED PINS (thick and thin) that contain maximum 0.5 gold per 1 kg , and with this comparation is all
Right now I have some full plated pins from telecomunication connectors that contain only 0.5 24k gold per kg and the pins are full plated

 

[BlackLabel]

EMPTY plated boards

Understood, but did you collect the metal transistors/ICs?
I'm talking about the little metal caps.
On your second picture, there are a lot of them (mostly with a star-shaped heat sink).
On the third picture are a couple of them and a white ceramic IC with a gold plate.

The metal transistors often have gold plated legs. These are often gold plated inside. Good yield.

 

[mythen10]

Understood, but did you collect the metal transistors/ICs?
I'm talking about the little metal caps.
On your second picture, there are a lot of them (mostly with a star-shaped heat sink).
On the third picture are a couple of them and a white ceramic IC with a gold plate.

The metal transistors often have gold plated legs. These are often gold plated inside. Good yield.

yes

 

[eaglekeeper]

hhhh smells like bunny.

It might smell like bunny....., but it taste like chicken.

 

[FrugalRefiner]

I prefer the bunny. Tasty little coneys.

Dave

 

[malphorian1973]

I want to apologize for the previous post. I should not have posted it before I fact checked my information. This is what happens when I post from memory (which mine is very bad) and don't go back and read what I thought it was I was sure about. It won't happen again. Have a great day people.

edited

 

[actionmanmelb]

Most of the items highlighted with red dots are carbon resistors and contain zero gold!

 

[BlackLabel]

In my opinion, the parts I marked green should hold the values.