Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 231
. This cur-rent acts like a short-circuit on the tilting magnet, andthe bulb rights itself, causing a spark which breaks downthe cathode resistance and starts current through the bulbfrom the main anodes. This current flows through therelay coil and opens its contacts which opens the tiltingmagnet… … Fig. 120 0MG#%A4 Of coH/tdzcr/o/ts
Motion picture theaters · Electric lighting
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-354-223.webp)
