Monthly Archives: October 2007

A 4:1 balun, homebrew

2007/10/14   “ A 4:1 balun I homebrewed”   Last month my 40m loop antenna indicated a high SWR.  I checked the antenna to find where it went wrong.  I checked the loop antenna, the 450 ladder line, the balun, … Continue reading

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My soldering iron temperature controller, homebrew

2007/10/08 “The Soldering Iron Temperature Controller”   I am challenging to work on the Surface Mount Device (SMD) kit some day, hopefully by the end of this year.  I need to have a temperature controller for my soldering iron to … Continue reading

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