tag:blogger.com,1999:blog-513094667326816455.post6240350701919949480..comments2023-06-01T08:28:20.863+01:00Comments on M1KTA's QRP ham radio blog: 70cm colinearUnknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-513094667326816455.post-73127001512423892012014-08-08T11:53:57.376+01:002014-08-08T11:53:57.376+01:00From the original article on the coils. 4 turns, 1...From the original article on the coils. 4 turns, 165 mm long, 7mm turn spacing, 12.5mm diameter. Figure 3 is for the phasing stubs.<br /><br />You start by bending the wire at a right angle at point B, and trapping it against a length of 12.5mm (0.5 inch) dowel. I use<br />a self-gripping wrench, sometimes known as a ‘mole’ wrench, for this job. Keeping about 7mm between each turn, wind the wire in a clockwise direction around the dowel as tightly as possible.<br />After four turns, this should bring you to point C, which should be in line with the section A-B.Michaelhttps://www.blogger.com/profile/18442404640553742438noreply@blogger.comtag:blogger.com,1999:blog-513094667326816455.post-84210799350975892342011-11-29T08:11:33.532+00:002011-11-29T08:11:33.532+00:00The coil overall length is 165mm not 165" inc...The coil overall length is 165mm not 165" including the short vertical section.... the coil starts in one direction, 3/4 of a turn, add a short vertical section (The vertical length was 10mm) and then repeat the 3/4 turn coming back on yourself. The vertical length depends on your former I used a 12mm diameter piece of dowel.<br /><br />If you look vertically DOWN on the coil you will see each side is 3/4 of a turn.M1KTAhttps://www.blogger.com/profile/05944098903387301523noreply@blogger.comtag:blogger.com,1999:blog-513094667326816455.post-1159722894342438642011-11-29T07:49:23.579+00:002011-11-29T07:49:23.579+00:00Already state in the post.
The two phasing coils ...Already state in the post.<br /><br />The two phasing coils are made by bending the wire at point B at 90 degrees and taping it hard up against a 12.5mm former (1/2" dowel was used). Figure 3 has a close up.<br /><br />The wire to make the coil is is 165" long.M1KTAhttps://www.blogger.com/profile/05944098903387301523noreply@blogger.comtag:blogger.com,1999:blog-513094667326816455.post-49923699718464978382011-11-29T02:02:51.721+00:002011-11-29T02:02:51.721+00:00i want to know detail of phasing coil at fig 1
i w...i want to know detail of phasing coil at fig 1<br />i want to know diameter and number of turn<br /><br />thanks<br />Eko Pramono <br />(ekopramonoid@yahoo.com)Anonymousnoreply@blogger.com