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Does anyone know how the pins on White's coil connectors are wired? Which numbers are the recieve coil, which one are for the transmit coil, shield and such? I am wanting to try a modification on one of my detectors.
I don't happen to know this but it should be fairly easy to figure out on the bench. Take a multimeter and set it for low range ohms. Connect to pairs of the search coil connector until you see a reading of zero to just a few ohms. This will be either the Tx or the Rx coil. The other two wires will be other one. If there is a 5th one, it will be a shield. The shield will be the one that has no connection to any of the other 4 wires. Once you've determined which wires are paired together, set the meter to ac volts (again low range) and test the control box end with the detector turned on. You should get a reading from the Tx pair but not the Rx pair.
This should work if the search coil is fully passive. If it has an active circuit board, things get more complicated.
