Low frequency transformer

Details Low frequency transformer Low frequency transformer

1983-04-11

1984-12-25

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Including amplitude or volume control

330171, 330190, 330197, 336170, H01F 2728

Patent

active

044908440

ABSTRACT:
A low frequency transformer for an audio system has a core, a primary winding, a secondary winding, insulation between the primary and secondary windings, a tertiary winding, and insulation between the secondary and tertiary windings. One end of the tertiary winding is embedded in the insulation between the secondary and tertiary windings, and the other end is grounded. With a tertiary winding arranged and connected in this fashion, the effects of external interference signals are substantially eliminated, and the output of the transformer is improved, i.e., it has less waveshape and frequency distortion. Preferably, the primary and tertiary windings are wound around the core in the same direction while the secondary winding is wound around the core in the opposite direction.

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