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Sound′er-mag′net.


Telegraphy.) The magnet which operates the sounder in the receiving apparatus. In Fig. 5321, the coil B is inclosed in a metallic box, the ends of which are maintained in a state of tension by means of a screw-rod C, which carries the anvil D on its end, the object being to increase the sonorousness of the vibrations caused by the pivoted sounder striking the anvil, and which are propagated through the box. S is the spring which draws back the sounder after each impulse of the magnet.

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