Has anyone studied the circuits in one of these - could be interesting.
It allows one to trace live (110vac) circuits.
TomC
- posted
12 years ago
Greenlee 2007 Closed Circuit Tracer & Wire Tester
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- posted
12 years ago
I doubt it's very interesting- just a high-Z capacitive pickup. It's keeping 60Hz out of circuits that gets interesting.
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
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- posted
12 years ago
As Spehro notes, it really isn't that interesting. A DVM can do this, especially when you don't want it to.
Don't trust it to tell you that a circuit is dead. A false negative can leave you dead.
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- posted
12 years ago
"The Journey is the reward"
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eff.com
This system consists of two parts. The transmitter plugs into a live AC circuit. This transmitter is small - no larger than a typical 'wall-wart'. The receiver is an inductive type pickup that one can scan near/over the circuit breaker box (or wire) near the circuit being monitored and gives an indication when close to the circuit that the transmitter is plugged into. I would be curious as to the transmitter circuitry - as to frequency(ies) used and how it is coupled into the live AC circuit.
TomC