tag:blogger.com,1999:blog-1958184631135965729.post504610857263345810..comments2024-02-05T17:19:07.051+09:00Comments on qrp-gaijin: Building a 7 MHz small transmitting loop antenna, part 2qrp-gaijinhttp://www.blogger.com/profile/04539904582137868638noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1958184631135965729.post-88636052226665024892017-06-06T10:42:37.120+09:002017-06-06T10:42:37.120+09:00Copper tape is a lot more economic, less weight an...Copper tape is a lot more economic, less weight and a double surface than tube (RF travel outside). 2 2 cm. wide copper tape, have twice surface than a 6 mm. diameter tube. RF walk over the 20 microns of the surface. More material is a waste.<br />Even, aluminium have near same quality about RF and generate an oxide protectio over.<br />Edgardo http://lu1ar.blogspot.com.ar/<br />Edgardo Maffíahttps://www.blogger.com/profile/00642658442518950881noreply@blogger.comtag:blogger.com,1999:blog-1958184631135965729.post-5541813932159373062015-01-06T04:41:13.236+09:002015-01-06T04:41:13.236+09:00Very interesting again! A few tips: yes, certainl...Very interesting again! A few tips: yes, certainly you need soldering flux! You also definitely need a proper butane/propane mix soldering torch; a soldering iron is too slow and usually too cool. Remember to clean the copper to be joined with wire wool - and clean it very, very well! <br /><br />All from the experience of self-build and being a plumber's son!Photonhttps://www.blogger.com/profile/10137649851898638015noreply@blogger.com