stereo turntable MAGNETIC HEADS. ~ CLASSIC HI-FI EQUIPMENT

2017-08-13

MAGNETIC HEADS.



The magnetic heads of recording, reproduction or erasure it is possible to distinguish two main components:
 
A) Magnetic nucleus.
 
B) Winding.
 
The magnetic circuit is usually composed with very small remnant induction. Hysteresis losses should be minimal as well as those produced by eddy currents.
 
The winding is distributed in two windings each located in a seminore. This arrangement is preferable because it reduces the sensitivity of the head to disturbing external fields.  

The entire core-coil assembly is encapsulated so that protection against parasitic fields is effective.
In general the conditions required for a magnetic head are the following:
 
1) They must allow perfect air gap-tape contact
2) The shield must be specially guarded.
3) The wear resistance must be big.
Posted by hifisnecma on 10:55 AM  No comments »

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