Using epoxy glue or other suitable adhesive. Of vibration then wind the coil on a support made fromĪ suitable non magnetic plastic or ceramic former and lock the windings If you need good induction stability in the presence Usually obtained when the length of the coil is the Other combinations of wireĪnd coil diameter may be tried but best results are Small reductions in the inductance obtained can beĪchieved by pulling the turns apart slightly. ![]() )using enameled copper wire (magnet wire) tightly wound. This formula applies at 'low' frequencies (<3MHz) L is the coil length in meters (>0.8radius)įrom center of wire trough center of the coil and to ![]() The calculation is based on the classic Wheeler's formula for single-layer inductance (air core, tightly wound), which dates back to the radio days of the 1920s: Series Inductors Calculator Enter any two known values (Inductance of Inductors and Select Unit then Click on Calculate.
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