Author Topic: Rare Earth Minerals "Quotas"  (Read 7510 times)

Offline S Clark

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Re: Rare Earth Minerals "Quotas"
« Reply #15 on: April 17, 2018, 06:54:38 PM »
I also read that today.  Having a second source for the world add a lot of stability to the market. 
TT- Technics , Vyger  / Quintet Blue, Dyna 20x2, Blackbird
Phono pre- Dodd, , Jolida
Cables- Bolder, Wywires, TWL,
Speakers- LS-9, X-Static/GR-servo
Pre-Dodd
Amp- Moscode, Dodd, Folsom
P.I. Audio diffusers
DIY corner traps

Offline dBe

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Re: Rare Earth Minerals "Quotas"
« Reply #16 on: April 17, 2018, 08:58:02 PM »
I just want to see a major increase in cobalt so there will be more AlNiCo magnets for speakers.  Nothing sounds as natural in the mids as AlNiCo.

That is why I'm looking for old vifa M13MI-08-08 alnico mids that were a buyout from Alon before they became Nola.  I just need a pair.  Help me, please... Help me.

Offline richidoo

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Re: Rare Earth Minerals "Quotas"
« Reply #17 on: April 18, 2018, 10:55:49 AM »
I have a samarium cobalt magnet stuck to my refrigerator that I got from The Foxboro Company when I was coop student there in 1994. It was part of a differential pressure sensor they made that Dutch Oil and others used to measure flow of oil and gas across their empire. A thin wire vibrating in a magnetic field varied frequency as the tension between the sensor diaphragms varied with differential pressure. The frequency was converted to 4-20mA signal for process control. All analog, very precise. This is how we got to the moon girls and boys!  The magnets weren't cheap. My magnet has a tiny chip in one edge, so it was rejected and given to me by the engineer that invented and patented the vibrating wire sensor technology. My favorite job evah! and a treasured possession. It's not really suited for refrigerator duty, it sticks too hard.  :D
It was made with California Cobalt, not chinese. But China did the same to our rare earth mines as they did to our steel.
« Last Edit: April 18, 2018, 10:57:38 AM by richidoo »

Offline doug s.

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Re: Rare Earth Minerals "Quotas"
« Reply #18 on: April 19, 2018, 12:09:25 AM »
...But China did the same to our rare earth mines as they did to our steel.
you mean western corporations screwed their countries of origin over by outsourcing everything to china and other third world countries...   8)

doug s.