1, single coil

Single layer coil is a coil to an enclosure around the paper or bakeliteskeleton insulated wire. Such as the transistor radio wave antenna coil.

2, honeycomb coil

If the coil winding, the plane is not parallel with the plane of rotation, butintersect at a certain angle, the coil is called honeycomb coil. And therotation of one week, the wire back and forth bending, often referred to as the break point. The advantages of honeycomb type winding is small in size, small distributed capacitance, and large inductance. Duolateral coil is the use of honeycomb winding machine to winding, break pointmore, the smaller the distributed capacitance

3, the ferrite core and iron core coil

Inductance coil size and has no core about. Insert the ferrite core in theair core coil, can increase the inductance coil and improve quality factor.

4, copper core coil

Copper core coil in the VHF range widely to change the inductance usingrotating copper core coil in position, this adjustment more convenient,durable.

5, color coded inductors

Color coded inductors inductors have inductance is fixed, the inductancemarking method with resistance as well as to color ring to mark.

6, choke (choke)

Alternating current through the coil limit called choke, choke and the low frequency and high frequency choke coil.

7, deflection coil

The load deflection coil is TV scanning circuit output stage, deflection coilrequirements: high deflection sensitivity, a uniform magnetic field, high Q value

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