{"id":1435,"date":"2024-11-22T10:57:00","date_gmt":"2024-11-21T23:57:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2024\/11\/22\/tezukuri-and-chappy-happy-amazing-videos-on-homebrew-radio-from-japan-another-40-meter-direct-conversion-receiver\/"},"modified":"2025-07-22T18:01:20","modified_gmt":"2025-07-22T08:01:20","slug":"tezukuri-and-chappy-happy-amazing-videos-on-homebrew-radio-from-japan-another-40-meter-direct-conversion-receiver","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2024\/11\/22\/tezukuri-and-chappy-happy-amazing-videos-on-homebrew-radio-from-japan-another-40-meter-direct-conversion-receiver\/","title":{"rendered":"Tezukuri and Chappy Happy &#8212; Amazing Videos on Homebrew Radio (from Japan?) &#8211;  Another 40 Meter Direct Conversion Receiver"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/_Wia9RwxP3Y?si=Hm2u11GcWICPoMC4?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<p><b>So around the time we were building 40 meter direct conversion receivers, someone else was doing something similar. His product (above) is a lot nicer than ours. He has an S-meter and a digital frequency readout. But like ours, his is built on a wooden board. FB OM. <\/b><\/p>\n<p><b>If you want to see what a direct conversion receiver can do, watch his video (above). <\/b><\/p>\n<p><b>I was really amazed to see him use a modified VFO from a Kenwood TS-820. Not long ago Pete N6QW spotted one of these on e-bay and recommended that I buy it. As with the Yaesu FT-101 VFOs, we bought it for the gears and reduction drives but ended up with the entire VFO circuit. I now have one on my shelf, ready to go. TRGHS. <\/b><\/p>\n<p><b>We are not sure who Chappy Happy is, but &#8220;Tezukuri&#8221; means &#8220;hand-made&#8221; in Japanese. The writing in the video descriptions are in Japanese, then Chinese. <\/b><\/p>\n<p><b>Here is the YouTube channel. Amazing stuff here: <a href=\"https:\/\/www.youtube.com\/@chappyhappy3675\">https:\/\/www.youtube.com\/@chappyhappy3675<\/a> He is clearly a ham. He even works on an old S-38. Who is this guy? <\/b><\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>So around the time we were building 40 meter direct conversion receivers, someone else was doing something similar. His product (above) is a lot nicer than ours. He has an S-meter and a digital frequency readout. But like ours, his is built on a wooden board. FB OM. If you want to see what a &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2024\/11\/22\/tezukuri-and-chappy-happy-amazing-videos-on-homebrew-radio-from-japan-another-40-meter-direct-conversion-receiver\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Tezukuri and Chappy Happy &#8212; Amazing Videos on Homebrew Radio (from Japan?) &#8211;  Another 40 Meter Direct Conversion Receiver&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,21,75,283,12],"tags":[],"class_list":["post-1435","post","type-post","status-publish","format-standard","hentry","category-direct-conversion","category-homebrew","category-japan","category-s-38e","category-tj-dc-rx"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1435","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=1435"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1435\/revisions"}],"predecessor-version":[{"id":11179,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1435\/revisions\/11179"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=1435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=1435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=1435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}