eHow - Electronicshttp://www.ehow.com/guide_16-http://www.ehow.com/guide_16-electronics.html.htmlwww.ehow.comParts of Refractor Telescopehttp://www.ehow.com/how_2370188_parts-refractor-telescope.htmlDiscussion of the components of a refractoring telescope. Learn how a telescope works in this free home astronomy equipment video from a telescope designer and manufacturer. Published on 6/26/2008