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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Adum Chan

  1. A

    CdS - contain Mercury ?

    Thank you all for valuable information, I understand the situration now. So CdS will disappear in the market shortly ?! Gorgon, My application is a toy room guard they require to detect if any body movement in front of 2m - 3m of the device, do you have any suitable cct using photo...
  2. A

    CdS - contain Mercury ?

    I heard a new that product can't use CdS anymore because it contains mercury. RoHS will not accept this (lead & mercury). Is it true ? If so, any mercury free CdS in the market ? Rgds

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