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Pick your finest necktie and cut it with scissors like this.
Join the cut ends with a piece of elastic rubber band. Stapler works fine here.
Keying contacts are made of two safety pins and keying cable is soldered to them. Electric tape is needed for some insulation.
When the necktie is pulled downwards, the ends are drawn apart and the uninsulated parts of safety pins make keying connection.
Necktie ready for CW party.
See & hear the elegance of necktie telegraphy in this video clip:






첫댓글 좋긴 헌데 마누라 한테 덜 않쫗겨 날까? 그리고 뇌가까운곳에 웬 크릭파를???
아이디어가 기발한데요
