OCR Text |
Show Adjustable Loop Aerial Is Easily Constructed A loop aerial that is adjustable In length to suit receiving conditions and therefore is especially suitable for sets of the super-heterodyne type, may be made easily by the method illustrated. A frame of conventional design Is made of by 1 inch white pine, with a round or square base. The arms are studded with glass-head pins, such , .JVoIass-head piNSpj; "p y', I J ANTtNN BinDER POSTS mi - L Arrangement That Allows Closest Possible Pos-sible Tuning. as photographers use. On these pins is wound a length of bare, braided copper wire. One end of the winding is fastened to the rin in the center, and the other to a binding post on the radio panel. Connect a short piece of flexible wire with the other binding post and soldei a clip on the loose end, so that it may be snapped on the loop at any place. This allows the closest possible tuning of the aerial circuit. 1 |