The diameter of the coil is 1 inch and the coil length is given by 125 inches. Metal detecting hidden barrel deposit of gold found while treasure hunting duration. Inductors can be labeled with a number of different ways.
HOW TO MAKE AN FERRITE CORE INDUCTOR HOW TO
How to design a coil for a specific inductance that you need including how to calculate the inductance and where to find an online inductance calculator. The legs of the coil require tinning to remove the enamel and prime the surface for soldering onto a board. But as at rogerrowland says there are plenty of 10mh inductors available out there and lots of designs for metal detectors that include the design of the search coil. Suppose you want to make an inductor which produces an inductance of 10 mh. Use some needle nosed pliers to grip the coil while tinning it can get very hot.
Wind the coil by rotating the form on its axis. To start winding a coil put the spacing block or tube inside the form and insert one end of the coil wire and spacing line in the side by side holes at one end of the form. Xrx values are in micro henries mh three digit values are in nano henries nh or micro henries mh depending on manufacturers choice. To make your own you need to have enough wire to make the coil the wire must be capable of carrying the current you need it to take and a former to wind it on. To begin coiling your inductor you should take the drill bit or other cylindrical object and pinch it between your thumb and forefinger.
Olaf treasure hunting metal detecting diver recommended for you. Thus substituting the values in the above equation. Heat one leg with the soldering iron for a few seconds. With your other hand intersect the wire and the drill bit so that they form a cross with a majority of the wire being on one side. 1967 shelby gt500 barn find and appraisal that buyer uses to pay widow price revealed duration. Remove the insulation from the coil ends. You will have to find the number of turns of the coil. Introduce some solder to the heated leg and continue applying the iron moving back and forth on the leg. If you are going to make an inductor for the pultec you may need some taps.