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Precious metals in this radio transmitter tube?

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  1. 09-04-2012, 11:45 PM #1
    HyderConsulting
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    Precious metals in this radio transmitter tube?

    This is a ceramic/metal composite tube made by Eimax, model 3CX3000A7. It is referred to as a power tube or transmitter tube used in radio station broadcast I believe. I wonder if anyone know how much silver is in one of these and if they may contain platinum?

    http://i1162.photobucket.com/albums/.../Eimaxtube.jpg
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  3. 09-05-2012, 12:35 AM #2
    Mechanic688
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    Quote Originally Posted by HyderConsulting View Post
    This is a ceramic/metal composite tube made by Eimax, model 3CX3000A7. It is referred to as a power tube or transmitter tube used in radio station broadcast I believe. I wonder if anyone know how much silver is in one of these and if they may contain platinum?

    http://i1162.photobucket.com/albums/.../Eimaxtube.jpg
    Can't actually answer your question but maybe you'll like this answer anyway. If it is any good still the tube can be worth up to 200-300. They are still used by the guys that manufacture CB-ham amplifiers. The Eimac is still made in the US. Here is a good example; eimac 3cx3000 | eBay
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  4. 09-05-2012, 01:35 AM #3
    HyderConsulting
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    This particular one has been tested and is not usable. It only has a rebuild value of about $40.
  5. 09-05-2012, 02:22 AM #4
    Mechanic688
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    Quote Originally Posted by HyderConsulting View Post
    This particular one has been tested and is not usable. It only has a rebuild value of about $40.
    A core value of around $40. is still way better than about .50 of scrap.

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  7. 09-06-2012, 10:13 PM #5
    aurum
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    Some tubes contain quite a bit of silver, some none at all. None that I know of has any platinum in them. Plus there are a few pounds of #2 copper. The ceramic part may contain beryllium, and should not be broken when dismantling, as the beryllium dust is hazardous.

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