Posted by JB(MS) on 7/27/2009, 8:59 am, in reply to "Coil wire"
66.175.148.151
To find out which coil wires go to the transmit and recieve windings in the coil you want to use on the Baron, measure the resistance of the windings using a multimeter. The winding with the lowest resistance is the transmit winding. Also check to see if there is a resistance between the transmit and receive coil. The Baron coils have isolated transmit and receive windings and according to George Payne, coils that have some type of connection between the windings won't work unless some mods are made to the main board in the detector. If the Tesoro coils for the µMax and older models have isolated windings they just might work, or might not. Tesoro uses what they used to call a "rolling" oscillator, in their µMax and older models that share the same coils, that basically makes the coil part of the circuit that determines the frequency. That's why the same coil will work on their detectors that range from around 9.5 to 12.5 khz.
A few years ago I took a cheap 15 khz Chinese detector in trade that had the same type coil connecter as the Barons. I checked the coil with a meter to make sure the transmit and receive coils were isolated and plugged an 8 inch Baron coil in the detector to see if it would work. It lowered the audio tone but worked okay so I plugged the Chinese coil into the Cointrax. The frequency of the audio tones was higher, and the meter ID'ed coins a segment higher, but it worked. I never used it on a hunt, and don't know if the Cointrax would have ground balanced with it, but it air tested coins just about the same distance as the Baron coil. Based on that, if the Compass coils have isolated windings that might be the way to go. Link is to a thread in the archives in which George replies to a question about different brand coils from Scott(Me).
http://jb-ms.com/Carlsforum/Nov1-2003/13993.html
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