![A chunk of pure Cadmium Sulfide [4032x3024 - 1.64MB]](https://pic8.co/sh/d2bBAb.jpg){kind=link}
You're finding a bunch of weird shit. If you find vials/bottles be careful not to shake them.
You're finding a bunch of weird shit. If you find vials/bottles be careful not to shake them.
Of the kind used in photocells.
Of the kind used in photocells.
Too bad that electron gun from your other post is not operable. If you pump a thin flat piece of CdS, you can make a green, fan-shaped laser out of it. I used to have a book on lasers from the 70s that showed the apparatus setup and output using a CdS flat placed at the emitting end of the electron gun. It did need a vacuum chamber to make it happen, but otherwise it was a pretty simple setup. Wish I still had that book. I have no idea where it went.
Too bad that electron gun from your other post is not operable. If you pump a thin flat piece of CdS, you can make a green, fan-shaped laser out of it. I used to have a book on lasers from the 70s that showed the apparatus setup and output using a CdS flat placed at the emitting end of the electron gun. It did need a vacuum chamber to make it happen, but otherwise it was a pretty simple setup. Wish I still had that book. I have no idea where it went.
The electron tube isn't damaged, it would just need to be under vacuum to be operational.
The electron tube isn't damaged, it would just need to be under vacuum to be operational.
It might be difficult to burn out the organics and other impurities inside that tube since it's been open ended for so long. I don't see any getters in there either, but I guess they're not as necessary for electron guns compared to other vacuum tubes. It would be interesting if you could get it working though.
It might be difficult to burn out the organics and other impurities inside that tube since it's been open ended for so long. I don't see any getters in there either, but I guess they're not as necessary for electron guns compared to other vacuum tubes. It would be interesting if you could get it working though.
By the other material in there, I suspect they were drawing vacuum at time of operation. There were a number of these devices in various states of usefulness, almost all of them except three were smashed. A few had some sort of screen material on the front, damaged of course.
By the other material in there, I suspect they were drawing vacuum at time of operation. There were a number of these devices in various states of usefulness, almost all of them except three were smashed. A few had some sort of screen material on the front, damaged of course.
Doesn't look all that pure. Looks kind of dirty.
Doesn't look all that pure. Looks kind of dirty.
It's dirty because it's been sitting in an envelope in a drawer since 1966. The material itself, sans surface contamination, is quite pure.
It's dirty because it's been sitting in an envelope in a drawer since 1966. The material itself, sans surface contamination, is quite pure.
Forgive the ignorance, but WTF job did you have where you’re finding all this shit?
Forgive the ignorance, but WTF job did you have where you’re finding all this shit?
The job itself was just a commercial instrument (industrial) but the man who founded the business was a scientist first and a manufacturer second.
The job itself was just a commercial instrument (industrial) but the man who founded the business was a scientist first and a manufacturer second.
(post is archived)