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.
Does anyone have circuit diagrams/schematics for E Meters/GSR Meters/Lie Detectors?
The devices I'm interested in use something like a wien bridge circuit that nulls itself after a few seconds to compensate for changes in measured resistance, driving a centre zero meter.
this is the best ive got. try going to google and then type in 7000 circuits. it will pull up a website that i think is called discover circuits or somethin like that. if u dont like mine, im sure that theyll have 1 there.
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