{"id":4043,"date":"2015-03-31T09:46:00","date_gmt":"2015-03-30T22:46:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2015\/03\/31\/almost-enough-to-make-you-abandon-manhattan-johns-sw-40\/"},"modified":"2025-07-21T16:28:54","modified_gmt":"2025-07-21T06:28:54","slug":"almost-enough-to-make-you-abandon-manhattan-johns-sw-40","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2015\/03\/31\/almost-enough-to-make-you-abandon-manhattan-johns-sw-40\/","title":{"rendered":"Almost Enough to Make You Abandon Manhattan: John’s SW-40"},"content":{"rendered":"
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Hi Bill, <\/p>\n

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You said you didn’t mind if I sent you some of my finished projects so here is the latest. I scratch built the SW 40 that I had previously built from a kit by K1SWL. I always liked that radio, and thought by laying it out I would learn more about it. In testing it out after I aligned everything I made a qso with Mike (K3WAS),and got a good report, and I didn’t let out any of the magic smoke or sacrifice any chickens. You gotta love this hobby. <\/div>\n
The rig tunes from 7.034 to 7.063, and I had about 2.3 watts out, but ran into some slight problems with instability at the end of the qso with Mike. The PA was getting a little hot, but with the excitement of having it work right out of the gate it really didn’t matter at the time. The board layout was done with express PCB, and using the toner method, placed it on the board. Chuck (K7QO), has some great youtube videos showing the process. I have to admit I got more knowledge by laying out the board as opposed to manhatten construction, and came away with a better understanding of the radio itself. <\/div>\n
Now to build the case. the board is 5.25 by 7.25 inches, and I may have to sneak one of my wife’s alum cookie sheets to fabricate the case. She doesn’t bake till Christmas so it will be a calm summer. I also made provisions on the board for a digital readout, but for now I just want to enjoy the rig as it is.<\/div>\n
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Thanks to both you and Pete for taking an interest, as well as the great job on soldersmoke.<\/div>\n
73<\/div>\n
N8RVE John<\/div>\n

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Our book: “SolderSmoke — Global Adventures in Wireless Electronics” http:\/\/soldersmoke.com\/book.htm<\/a> Our coffee mugs, T-Shirts, bumper stickers: http:\/\/www.cafepress.com\/SolderSmoke<\/a> Our Book Store: http:\/\/astore.amazon.com\/contracross-20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Hi Bill, You said you didn’t mind if I sent you some of my finished projects so here is the latest. I scratch built the SW 40 that I had previously built from a kit by K1SWL. I always liked that radio, and thought by laying it out I would learn more about it. In … Continue reading “Almost Enough to Make You Abandon Manhattan: John’s SW-40”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4044,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118,105],"tags":[],"class_list":["post-4043","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adams-chuck","category-kits"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=4043"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4043\/revisions"}],"predecessor-version":[{"id":4046,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4043\/revisions\/4046"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/4044"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=4043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=4043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=4043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}