| 摘要 |
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 (24, 25, 32) which extends substantially in the direction of the magnetic lines of force. Suitably, a polepiece (21) 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. |
