{"id":10036,"date":"2023-06-04T11:13:00","date_gmt":"2023-06-04T01:13:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2023\/06\/04\/can-you-id-this-receiver-grayson-finds-a-homebrew-receiver-in-germany-from-the-gdr-circuit-schematic-thermatrons\/"},"modified":"2025-07-22T18:02:24","modified_gmt":"2025-07-22T08:02:24","slug":"can-you-id-this-receiver-grayson-finds-a-homebrew-receiver-in-germany-from-the-gdr-circuit-schematic-thermatrons","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2023\/06\/04\/can-you-id-this-receiver-grayson-finds-a-homebrew-receiver-in-germany-from-the-gdr-circuit-schematic-thermatrons\/","title":{"rendered":"Can you ID this Receiver?  Grayson Finds a Homebrew Receiver in Germany. From the GDR.  Circuit? Schematic? Thermatrons?"},"content":{"rendered":"<\/p>\n<div style=\"text-align: center;\"> <a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0473.jpeg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"480\" data-original-width=\"640\" height=\"246\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0473.jpeg\" width=\"328\" \/><\/a><\/div>\n<div style=\"text-align: left;\"><b>Grayson Evans KJ7UM (the author of <a href=\"https:\/\/www.ermag.com\/product\/hollow-state-design-2nd-edition\/\">Hollow State Design<\/a>) was recently in Germany where he spotted this museum display of a homebrew receiver built in the GDR (the old East Germany) around 1983 by a 13 year-old. Very cool. <\/b><\/div>\n<div style=\"text-align: left;\"><b><br \/><\/b><\/div>\n<div style=\"text-align: left;\"><b>Here is today&#8217;s task for SolderSmoke: Can you provide any more info on this receiver? The card indicates 0-V-1 which would be a regen with no RF amplifier, right? Maybe something like this: <\/b><\/div>\n<div style=\"text-align: left;\"><b><a href=\"https:\/\/www.qsl.net\/pa2ohh\/15tuberx.htm\">https:\/\/www.qsl.net\/pa2ohh\/15tuberx.htm<\/a><\/b><\/div>\n<div style=\"text-align: left;\"><b><br \/><\/b><\/div>\n<div style=\"text-align: left;\"><b> Look carefully at the pictures and try to gather any additional information on the receiver or its builder.<\/b> <\/div>\n<div style=\"text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0474.jpeg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"480\" data-original-width=\"640\" height=\"292\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0474.jpeg\" width=\"389\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0369.jpeg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"480\" data-original-width=\"640\" height=\"278\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0369.jpeg\" width=\"370\" \/><\/a><\/div>\n<p><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0368.jpeg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"640\" data-original-width=\"480\" height=\"478\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/IMG_0368.jpeg\" width=\"359\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/HSD-3rd-web.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"750\" data-original-width=\"567\" height=\"400\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2023\/06\/HSD-3rd-web.jpg\" width=\"303\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b>Thanks Grayson! <\/b><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grayson Evans KJ7UM (the author of Hollow State Design) was recently in Germany where he spotted this museum display of a homebrew receiver built in the GDR (the old East Germany) around 1983 by a 13 year-old. Very cool. Here is today&#8217;s task for SolderSmoke: Can you provide any more info on this receiver? The &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2023\/06\/04\/can-you-id-this-receiver-grayson-finds-a-homebrew-receiver-in-germany-from-the-gdr-circuit-schematic-thermatrons\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Can you ID this Receiver?  Grayson Finds a Homebrew Receiver in Germany. From the GDR.  Circuit? Schematic? Thermatrons?&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":10037,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[154,95,148],"tags":[],"class_list":["post-10036","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evans-grayson","category-germany","category-regens"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10036","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=10036"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10036\/revisions"}],"predecessor-version":[{"id":10042,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/10036\/revisions\/10042"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/10037"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=10036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=10036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=10036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}