H - Electricity – 04 – R
Patent
H - Electricity
04
R
181/25, 179/30
H04R 9/16 (2006.01) H04R 11/12 (2006.01)
Patent
CA 1179950
PHN. 9944. ABSTRACT: A pick-up or cutter, whose magnetic circuit is at least partly hollow, the cavity (cavities) extending mainly in the direction of the magnetic lines of force and the magnetic circuit being formed at least partly with a slot which extends substantially in the direction of the magnetic lines of force. Suitably, a polepiece of the magnetic circuit is constructed in this way. This reduces eddy-current losses in the magnetic circuit, thereby improving the treble reproduction of the pick-up.
395132
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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