{"id":6746,"date":"2012-07-21T11:24:00","date_gmt":"2012-07-21T01:24:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2012\/07\/21\/beautiful-british-homebrew-with-valves-2\/"},"modified":"2025-07-21T21:35:01","modified_gmt":"2025-07-21T11:35:01","slug":"beautiful-british-homebrew-with-valves-2","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2012\/07\/21\/beautiful-british-homebrew-with-valves-2\/","title":{"rendered":"Beautiful British Homebrew (with Valves!)"},"content":{"rendered":"
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I was rummaging around the junkbox and I found this gem. I probably bought it at the Kempton Park rally in London. I think it is an AM transmitter for VHF. Maybe 6 meters? Or perhaps that British 70 MHz band? What do you guys think? Can anyone estimate the frequency from the size of the coils? <\/span>

I think the workmanship is beautiful. The technique of putting the tube sockets on a copper clad board is interesting. I wonder why he did that — obviously he wasn’t afraid of metal work. Look at that cable harness work! FB! It’s too bad the builder didn’t mark it with his call. <\/span><\/span><\/p>\n

Anyone recognize the design? Any idea when this was built? For bonus points: Who built it? <\/span><\/span><\/p>\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":"

I was rummaging around the junkbox and I found this gem. I probably bought it at the Kempton Park rally in London. I think it is an AM transmitter for VHF. Maybe 6 meters? Or perhaps that British 70 MHz band? What do you guys think? Can anyone estimate the frequency from the size of … Continue reading “Beautiful British Homebrew (with Valves!)”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":6747,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[133,119],"tags":[],"class_list":["post-6746","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hamfests-and-flea-markets","category-uk"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6746","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=6746"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6746\/revisions"}],"predecessor-version":[{"id":6749,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/6746\/revisions\/6749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/6747"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=6746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=6746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=6746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}