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Subject: Simple Question re: Low-Voltage detector

Date: 02/17/01 at 12:50 PM
Posted by: Heruka
E-mail: heruuka@yahoo.com
Message Posted:

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Sorry about the simplicity of this question, but my knowledge of the specifics of electrical components and how the behave is pretty shameful. I'm looking for schematics of a device that detects a closed circuit with a very small amount of power (1 AA or AAA cell) flowing through it. This device would probably incorporate a transistor(acting as alow-voltage relay[?]) and a secondary power source of a greater size(12-24v) that would illuminate a light, indicating that the low-power circcuit is closed. i'd like to keep this as simple as possible, which shouldn't be a problem. So basicly i'm interested in a device that lights up a large-ish lamp when 2-wires carrying a very small current are crossed.

Thanks in advance for any help

Heruka - heruuka@yahoo.com

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