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5223
Cathode ray tube with whirl
This tube enables you to show the mechanical effects of cathode rays. In fact a small, fluorescent whirl , which can rotate with little friction, starts spinning the moment the cathode ray beam hits it. Operation is only guaranteed with the Ruhmkorff’s coil code 5208.
Two connecting leads (5013) and two alligator clips 5062N, 5062R are required. (not supplied)
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