DC 5V Zum Selbermachen Elektronisches Schaukel-Kit Elektromagnetische Schaukel Induktion Lehren Schweißen
8,48 €
6, adjustable swing: if the swing is too small can be Hall sensor slightly forward, or adjust the height of the acrylic, so that the swing is increased. (1) check the circuit welding, whether there is continuous welding, soldering and other conditions.
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