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Silver Sabre II

A

Anonymous

Guest
Do you have to use a plastic bolt and nut when mounting coil to the lower rod assembly? This is NOT a Umax. Thanks BEAR
 
Not with the Silver Sabre II. Not with the Bandido. Not with the Golden Sabre II. Not with the Bandido II
 
Monte, when Tesoro ships a detector with metal hardware, the screw used is a stainless steel alloy which is mostly neither magnetic nor conductive. The knurled nut uses a brass insert, again selected for the same characteristics as the screw. A normal steel screw and wingnut can lead to big headaches. There is a big difference in metals. Normal steel hardware can induce enough error signal in the search coil to alias discriminate readings or overload the input circuits, especially with small search coils. Use of Tesoro metal hardware won't cause these problems, but the average hardware store type stuff can.
 
As an auto mechanic I am well versed on the workings of hall effect switches (ignition pickups, abs sensors, speed sensors) and the havoc that metal shavings play on these circuits. What I would like to know is how similiar a metal detector functions to these types of circuits, primarily the coil itself. Is there an outer coil thats field gets altered by magnetically receptive metals and an inner coil that detects these field changes? I would greatly appreciate some information about this as I have been pondering it of late.
 
I have an SS2 as well Bear, and the coil mounting bolt on mine is metal. I wont go any further on this, as Monte & Jacks posts below explain it a whole lot better than I ever could! <img src="/metal/html/biggrin.gif" border=0 width=15 height=15 alt=":D">
 
<EM>metal</EM> hardware Tesoro uses. I didn't mean to imply that they could just go buy any oddball nut and bolt. As I stated, some metal parts can/will cause some problems. I just presumed that the question related to the Tesoro supplied metal hardware compared with the Tesoro supplied non-metal hardware.
I guess I can blame it on it being an early morning post or something. Just erred and took it for granted that the reference was comparing Tesoro-supplied parts.
I once set up some comparisons of various nuts and bolts in a testing rig designed to have the coil in motion and see the effects of the warped field on the overall performance. That, too, showed some differences compared with a simple "bench test" or "air test" result.
<EM><STRONG>Monte
 
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