{"id":2858,"date":"2016-06-14T01:12:00","date_gmt":"2016-06-13T15:12:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2016\/06\/14\/inside-a-millen-61455-if-transformer\/"},"modified":"2025-07-21T14:07:32","modified_gmt":"2025-07-21T04:07:32","slug":"inside-a-millen-61455-if-transformer","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2016\/06\/14\/inside-a-millen-61455-if-transformer\/","title":{"rendered":"Inside a Millen 61455 IF Transformer"},"content":{"rendered":"<div class=\"separator\" style=\"clear: both; text-align: center;\"> <\/div>\n<p> <\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"> <a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2016\/06\/IMGP3303.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" height=\"265\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2016\/06\/IMGP3303.jpg\" width=\"400\" \/><\/a><\/div>\n<p> <b>I found this in my junk box. I&#8217;ve put it in my old Mate for the Mighty Midget receiver, in the place of the Toyo CM455 crystal-mechanical filter (which I found to have excessive insertion loss). I think its very cool how they squeezed two variable caps into that little can. Designed in 1956. Works great. Note the promised passband: 4.7 kc at 6 db down. Not bad for an LC device. <\/b><br \/> <b>Here is the spec sheet:<\/b> <\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"> <a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2016\/06\/Millen455kc.jpeg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" height=\"400\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2016\/06\/Millen455kc.jpeg\" width=\"290\" \/><\/a><\/div>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I found this in my junk box. I&#8217;ve put it in my old Mate for the Mighty Midget receiver, in the place of the Toyo CM455 crystal-mechanical filter (which I found to have excessive insertion loss). I think its very cool how they squeezed two variable caps into that little can. Designed in 1956. Works &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2016\/06\/14\/inside-a-millen-61455-if-transformer\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Inside a Millen 61455 IF Transformer&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[200,100,101],"tags":[],"class_list":["post-2858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mate-for-the-mighty-midget","category-old-radio","category-tubes"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/2858","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=2858"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/2858\/revisions"}],"predecessor-version":[{"id":2861,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/2858\/revisions\/2861"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/2859"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=2858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=2858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=2858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}