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An induction speaker is a speaker that picks up electromagnetic signals and converts them into sounds that the user can hear. An example of one that I use on a frequent basis is the tone 'n' tag kit that I use to identify unlabelled network cables at client sites. I plug the tone generator into the network port at the wall on the far end and use the induction speaker to find the appropriate cable back in the wiring closet as it picks up the signal that is being broadcast. The induction speaker device does not need to be in contact with the cable to be able to help the user find it. Once it starts to pick up the signal, it will play it through the speaker. As the probe tip gets closer to the appropriate cable, the sound the speaker plays will increase in volume. Maximum volume will, of course, indicate that the cable is located.

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10y ago

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