{"id":3599,"date":"2021-01-20T14:21:00","date_gmt":"2021-01-20T03:21:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2021\/01\/20\/guilt-trip-video-on-the-heath-qf-1-q-multiplier\/"},"modified":"2021-01-20T14:21:00","modified_gmt":"2021-01-20T03:21:00","slug":"guilt-trip-video-on-the-heath-qf-1-q-multiplier","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2021\/01\/20\/guilt-trip-video-on-the-heath-qf-1-q-multiplier\/","title":{"rendered":"Guilt Trip:   Video on the Heath QF-1 Q Multiplier"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" src=\"https:\/\/www.youtube.com\/embed\/snLgWMX79Kk\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>Hack-A-Day had a nice post about this piece of gear: <\/b><\/div>\n<div><b><a href=\"https:\/\/hackaday.com\/2021\/01\/18\/q-multiplier-er-multiplies-q\/\">https:\/\/hackaday.com\/2021\/01\/18\/q-multiplier-er-multiplies-q\/<\/a><\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>My radio emotions were swinging wildly as I watched this video. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Readers may recall that over the years I have brutally cannibalized several QF-1s. I was enticed into doing this precisely by the tuning cap that the videographer so alluringly describes. It has a built in 7:1 reduction drive! How could I resist? These wonderful caps live on in several of my homebrew rigs. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>I also put the conveniently sized metal cabinets to good use &#8212; one holds frequency counters for my AM station, the other houses an Si5351 VFO\/BFO that can be used with many rigs. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>After extracting the cap and putting the boxes to good use, I was left with the remainder of the circuitry. I recently put even this stuff to use by using the coils to make a triple LC circuit filter for 455 kHz. This may someday be used in a receiver. So you see, I&#8217;ve not been wasteful. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>And the thing only cost 9 bucks back in the day&#8230; So I didn&#8217;t really do anything bad. And besides, adding a regen circuit to a superhet is kind of backwards, right? <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>But then the video producer started talking about how nice his QF-1 looks, even after more than 60 years. And about how much it improved the performance of his AR-1. And then, the kicker: He said the QF-1s are now &#8220;relatively rare.&#8221; <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>I hang my head in shame. I am a serial QF-1 killer. And I don&#8217;t know if I can stop. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b><br \/><\/b><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Hack-A-Day had a nice post about this piece of gear: https:\/\/hackaday.com\/2021\/01\/18\/q-multiplier-er-multiplies-q\/ My radio emotions were swinging wildly as I watched this video. Readers may recall that over the years I have brutally cannibalized several QF-1s. I was enticed into doing this precisely by the tuning cap that the videographer so alluringly describes. It has a &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2021\/01\/20\/guilt-trip-video-on-the-heath-qf-1-q-multiplier\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Guilt Trip:   Video on the Heath QF-1 Q Multiplier&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,149,100,148,57,101],"tags":[],"class_list":["post-3599","post","type-post","status-publish","format-standard","hentry","category-filters","category-heathkits","category-old-radio","category-regens","category-superhet-receivers","category-tubes"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3599","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=3599"}],"version-history":[{"count":0,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3599\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}