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Mercury relays? (UPDATED: Pics post #20) - Page 2

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  1. #21
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    Thanks for getting that posted!

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  3. #22
    newattitude started this thread.
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    Thanks for taking the time to send them to me! I have seen these on boards but never knew what they were. now I know!
    Scrapper, Scrap Yard Worker, Horse farm worker, Cooler Puller and just plain ''tired''

  4. #23
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    Wow with that copper coil people would want to smash them open... Thanks for the info. Where would you dispose of them after removing from boards?

  5. #24
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    Quote Originally Posted by hobo finds View Post
    Wow with that copper coil people would want to smash them open... Thanks for the info. Where would you dispose of them after removing from boards?
    Usually you can contact your states environmental office and they can tell you where to dispose of mercury switches. Most states have a state or federally run mercury recovery program similiar to the National End of Life Vehicle Solutions vehicle mercury switch program. Some local transfer stations also accept some for free and some have a small charge for disposal. Best to contact your state or county for more information. Some states also provide a bucket to each person collecting mercury and provide a prepaid shipping label for when the bucket is full but this will depend on state and county we had this option at a few my locations when they opened.

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  7. #25
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    How common is it to have these Mercury relays on a circuit board?

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    UPDATE: i answered this INCORRECTLY. I was answering it as if the thread question was about relays with silver contacts. Below is the response I gave in error. The only thing I got right was saying it is good to seed Julie back. Sorry for my error. Mike



    Quote Originally Posted by Julie View Post
    How common is it to have these Mercury relays on a circuit board?

    I have found them often on power supply boards. Mostly I would find boards in Lab and Medical equipment where the board would both power and logic and would often have these type of switches.

    Good to see you back. 73, Mike
    Last edited by miked; 05-12-2016 at 03:21 PM.
    "Profit begins when you buy NOT when you sell." {quote passed down to me from a wise man}

    Now go beat the copper out of something, Miked

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  10. #27
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    Here are some pictures of a few different kinds of boards with mercury wetted relays.





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  12. #28
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    Quote Originally Posted by miked View Post
    UPDATE: i answered this INCORRECTLY. I was answering it as if the thread question was about relays with silver contacts. Below is the response I gave in error. The only thing I got right was saying it is good to seed Julie back. Sorry for my error. Mike





    I have found them often on power supply boards. Mostly I would find boards in Lab and Medical equipment where the board would both power and logic and would often have these type of switches.

    Good to see you back. 73, Mike
    Hi Mike! Sorry for the lag in reply - I'm trying to be back more than I actually have time for. I miss this place though and all my friends....

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  14. #29
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    Julie, I hope you are well and prospering. 73, Mike

  15. #30
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    This is fascinating. The only mercury relays I've ever encountered are on old car radios, looking like a loctal-base vacuum tube in a metal envelope. I have three or four.

    If you listen, you can hear the Hg sloshing around.


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