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These Simple Circuit modules can be used to construct simple circuits of the type normally implemented on, for example a Worcester Circuit Board. Very useful for younger pupils to learn more applications of circuits anddevices. The modules are having 4mm plug connections. A current through the coil produces magnetism to cause the reed toswitch another circuit. The reed contacts are protected from shortcircuit damaged by low value series resistor.
Please note, this item is "Build to Order" and will take up to 60 days to ship after placing your order.