material

[kole55]

hello everyone on the forum. I read the forum often and it's great. I rarely read and learn what I post. Now I have a question whether someone has processed this kind of material and where it belongs to high grade mild or bad. thanks for every answer.

 

[butcher]

Transistor top hats...
https://goldrefiningforum.com/phpBB3/search.php?keywords=Top+Hats

With those pins, I like to use them to make my distilled nitric acid, while recovering gold from them, along with making copper sulfate for other uses...

https://goldrefiningforum.com/phpBB3/viewtopic.php?f=38&t=6199&hilit=kill+two+birds+one

 

[kole55]

971/5000
thanks for the reply butcher i read a lot of your posts and i appreciate you very much because you know a lot.your procedure is great but i rarely deal with nitric and sulfuric acid.don't get me wrong i finished high school as a chemical technician major operator but these things are I can't learn in school but here on the forum from the experience of members. Thanks for the great sharing of your experience. So I prefer mostly AP method because I'm in no hurry and this is a hobby for me. Now your opinion on whether this material will work in AP because there is various metals. do I need to burn the material first because I read somewhere on the forum I think from our member Geo which I also appreciate a lot, or I don't have to. and that I bought this material some 600 grams and it cost me 120 dollars. I don't know if it is good job but with today's gold value I would need about 2.5 grams of gold to return the investment but still this is my hobby and it feels nice when you add SMB.like fishing.thanks again.

 

[butcher]

The pins are thick gold plated, I suggest using some nippers to remove the stainless steel bands, and lineman pliers to cut the pins in small pieces...

I have not processed any Top-Hats, I save any I come across in my electronic scrap bins for future electronic projects, if I did decide to process them using a cupric chloride leach I would cut the hat open and remove the iron portion and use a hammer to smash open the germanium die inside...

Germanium diodes and transistors have some unique electronic properties in circuits for that reason I do not destroy a working top-hat, there are newer replacement transistors that can be used in a circuit, but many of these transistors will never be made again, maybe even making them more desirable as collector items.

I have collected more than I will ever use in electronic projects, in such, I may just save them and sell them to someone else who can use them, besides the price I could get, may even be more than I would get for the gold in the boding wire and plating.

https://www.google.com/search?q=top+hat+germanium+transistors&hl=en-GB&sxsrf=ALeKk00j3ydBwrMB4OhFDF2gp7Ccw7RBqA:1598560090884&source=lnms&tbm=shop&sa=X&ved=2ahUKEwio6_mynLzrAhVRtZ4KHfbmBQM4FBD8BSgBegQICxAD&biw=1280&bih=881

 

[kole55]

hello butcher. thanks for the reply. ok for the pins it is clear to me what to do, I never processed the transistors can you please explain to me about germanium where it is is it that little square as glass part on the inside. and if it is not there every transistor and why it is important to do it because I have no intention of collecting germanium. I have read almost all the posts on the forum about the transistor process and I use google translator so I may not have a real idea.someone said that there is beryllium oxide powder inside, but I cut out half of the material as seen in the picture but there is no powder, at least it is visible to the naked eye. that is the purpose of the question is how dangerous they are for mechanical treatment. so I thought just put them in the AP and wait I have time not in a hurry.thank you

 

[butcher]

I have not had much reason to study the composition or makeup of germanium diodes or transistors, although I have studied using these components in electronic circuits, about all I know is they use germanium crystals doped for PN junctions and they normally contained a small gold bonding wire to the crystal, besides the gold plating of the base and pigtail leads.

From your pictures, it looks like someone has already cut off the ferrous cap on a group of your transistors prepping them to recover the gold.

This might help?

https://en.wikipedia.org/wiki/Alloy-junction_transistorhttp://www.thevalvepage.com/trans/manufac/manufac1.htm

 

[kole55]

thanks a lot butcher. as always you help a lot and it is a great pleasure to quote your posts. enjoy and all the best for you.