라벨이 자작인 게시물 표시

Making Grid Dip Meter of SM0VPO

딥메타 자작 Source -   http://web.telia.com/~u85920178/use/gdo.htm By : DS5CKP   전설적 자작으로 알려진 SM0VPO(Harry) 의 기초 회로를 기본으로 자작을 시도하고 있다.  특히 자작에서 나타나는 문제를 이메일로 Harry OM의  기술적인 도움과 지도를 받으며 만들어 가고 있다.  자작의 즐거움은 여러 가지 문제점을 해결하고 토론의 과정을 거치면서 기술적인 ...

Homebrew Single-Lever CW Paddle

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Homebrew Single-Lever CW Paddle from Mark M. Oring, AG4RQ on November 10, 2006 " Editor'sNote: Due to the popularity of some of eHam's older articles, many ofwhich you may not have read, the eHam.net team has decided to rerunsome of the best articles that we have received since eHam's inception.These articles will be reprinted to add to the quality of eHam'scontent and in a show of appreciation to the authors of these articles. " AG4RQ's Homebrew Single-Lever CW Paddle Six junk CD's or a 5" x 5" piece of plywood. Four small machine screws with matching nuts. Screws should be justlong enough to go through the CD's with enough threads sticking up forthe nuts to fasten them. A medium size machine screw and nut. Four longer machine screws about 3/4 inch long with 6 matching nuts. Two star washers. The metal faceplate from a computer card (the par...