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==== LED detector ==== | ==== LED detector ==== | ||
[[File:V-Scope.jpg]] | [[File:V-Scope.jpg]200px|thumb|left|alt text] | ||
This an electrostatic field detector (a.k.a. as "V-Scope") that uses a common antenna to repond to ambient electrical fields. The LED glows brightly when positive charge approaches and becomes dimmer or blinks when negative charge comes in contact. | This an electrostatic field detector (a.k.a. as "V-Scope") that uses a common antenna to repond to ambient electrical fields. The LED glows brightly when positive charge approaches and becomes dimmer or blinks when negative charge comes in contact. | ||