{"product_id":"demonstration-dynamo","title":"Philip Harris Demonstration Dynamo","description":"\u003cp\u003eThe Demonstration Dynamo includes 2-pole armature wound with enamelled copper wire, and a permanent magnetic field provided by a removable magnet. The construction of the model is completely open and all components are readily observable. This model is mounted on a 200 x 125mm baseplate, which also carries a hand-drive pulley, 125 diameter, coupled to the smaller dynamo pulley by a rubber belt. Electrical output is via a pair of 4mm sockets, and a light emitting diode is provided as simple output indicator.\u003cbr\u003eThe model may also be used as a motor on a 6 to 9V d.c. supply.\u003cbr\u003eOverall height: 180mm.\u003c\/p\u003e","brand":"Philip Harris","offers":[{"title":"Default Title","offer_id":51272734540059,"sku":"HC1008658","price":149.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0915\/4363\/4203\/files\/B8L26098_107181-P-1_e7dffae8-ce46-483e-9c9f-800ab311a8fb.jpg?v=1769447738","url":"https:\/\/abcschoolsupplies.ie\/products\/demonstration-dynamo","provider":"ABC School Supplies ","version":"1.0","type":"link"}