{"id":7220,"date":"2019-10-03T23:14:00","date_gmt":"2019-10-03T13:14:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2019\/10\/03\/the-collins-mechanical-filter-an-advertisement-from-australia-1963\/"},"modified":"2025-07-21T22:34:35","modified_gmt":"2025-07-21T12:34:35","slug":"the-collins-mechanical-filter-an-advertisement-from-australia-1963","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2019\/10\/03\/the-collins-mechanical-filter-an-advertisement-from-australia-1963\/","title":{"rendered":"The Collins Mechanical Filter &#8212; An Advertisement from Australia, 1963"},"content":{"rendered":"<div class=\"separator\" style=\"clear: both; text-align: center;\"> <a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2019\/10\/CollinsFilterAd.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"759\" data-original-width=\"1136\" height=\"266\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2019\/10\/CollinsFilterAd.jpg\" width=\"400\" \/><\/a><\/div>\n<p> <b>Peter VK2EMU sent me this ad a while back. He said he regretted being unable to send a filter &#8212; all he could send was the ad. Thanks Peter &#8212; I think that ad is a work of art. Radio art. <\/b><br \/> <b><br \/><\/b> <b>Thanks too to all those who sent me mechanical filters. Pete sent the first one (it is currently in my HRO-ish receiver), then two more (both inside SBE transceivers, where they will remain &#8212; it would be a sin to cannibalize those beautiful rigs.) Then Mike Herr WA6ARA sent one as did Brad. Brad assures me that the one he sent was boxed up by Art Collins himself! <\/b><br \/> <b><br \/><\/b> <b>Thanks again guys. <\/b><br \/> <b><\/b><br \/> <b>Brad wrote: <\/b><br \/> <b><\/b><\/p>\n<header aria-label=\"Message\" class=\"r_BN D_F W_6D6F p_R P_Zjgzuf ir_0\" style=\"-webkit-text-stroke-width: 0px; color: #1d2228; cursor: default; display: flex; font-family: Helvetica Neue,Segoe UI,Helvetica,Arial,Lucida Grande,sans-serif; font-size: 13px; font-style: normal; font-variant: normal; letter-spacing: normal; orphans: 2; outline: 0px; padding: 8px 0px 16px; position: relative; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; width: 100%; word-spacing: 0px;\">\n<div class=\"o_h D_F em_0 E_fq7 ek_BB\" data-test-id=\"address-info\" style=\"-webkit-box-direction: normal; -webkit-box-flex: 0; -webkit-box-orient: vertical; display: flex; flex-direction: column; flex-grow: 0; margin-right: 8px; overflow: hidden;\">\n<div class=\"d_6FIA i_6FIA D_F eo_HB\" style=\"display: flex; flex-wrap: wrap; line-height: 18px; min-height: 18px;\"> <span class=\"u_b E_eo6 C_Z1TsNWR\" style=\"color: #979ba7; margin-right: 4px;\"><b>To:<\/b><\/span><span class=\"D_F rtlI_dz_sSg\" data-test-id=\"email-pill\" style=\"direction: ltr; display: flex;\"><span class=\"C4_Z2aVTcY\" data-test-id=\"message-to\" title=\"soldersmoke@yahoo.com\"><b>soldersmoke@yahoo.com<\/b><\/span><\/span><\/div>\n<\/p><\/div>\n<p> <span class=\"em_N en_N\" style=\"-webkit-box-flex: 1; flex-grow: 1; flex-shrink: 1;\"><\/span><\/p>\n<div class=\"en_0 s_6Fd5 H_6Fd5 M_3gJOe cdPFi_Z281SGl O_cMr O4_cMu\" style=\"fill: #1d2228; flex-shrink: 0; height: 16px; margin-bottom: 0px; margin-left: 8px; margin-right: 8px; margin-top: 0px; min-width: 16px; opacity: 0.5;\"> <button class=\"c27KHO0_n b_0 M_0 i_0 I_T y_Z2uhb3X A_6EqO r_P C_q cvhIH6_T ir3_1JO2M7 P_0\" data-test-id=\"icon-btn-printer\" style=\"-webkit-appearance: none; -webkit-tap-highlight-color: transparent; background-color: transparent; border-bottom-color: currentColor; border-bottom-style: none; border-bottom-width: 0px; border-image-outset: 0; border-image-repeat: stretch; border-image-slice: 100%; border-image-source: none; border-image-width: 1; border-left-color: currentColor; border-left-style: none; border-left-width: 0px; border-right-color: currentColor; border-right-style: none; border-right-width: 0px; border-top-color: currentColor; border-top-style: none; border-top-width: 0px; color: inherit; cursor: pointer; font-family: Helvetica Neue,Segoe UI,Helvetica,Arial,sans-serif; font-size: 13px; line-height: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;\" tabindex=\"-1\" title=\"Print\" type=\"button\"><span class=\"D_F ab_C gl_C W_6D6F\" style=\"-webkit-box-align: center; -webkit-box-pack: center; align-items: center; display: flex; justify-content: center; width: 100%;\"><svg class=\"D_X W_6LEV H_6LEV cdPFi_q cZW7ROP_n en_0 cvhIH6_T\" style=\"-webkit-tap-highlight-color: transparent; display: inline-block; fill: inherit; flex-shrink: 0; height: 20px; pointer-events: none; width: 20px;\" viewbox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><b><path d=\"M 13.8 13.5 H 6.2 c -0.4 0 -0.7 0.3 -0.7 0.7 v 2.6 c 0 0.4 0.3 0.7 0.7 0.7 h 7.6 c 0.4 0 0.7 -0.3 0.7 -0.7 v -2.6 c 0 -0.4 -0.3 -0.7 -0.7 -0.7 Z M 15.5 3.2 c 0 -0.4 -0.3 -0.7 -0.7 -0.7 H 5.2 c -0.4 0 -0.7 0.3 -0.7 0.7 v 3.3 h 11 V 3.2 Z M 17.3 8 H 2.7 c -0.4 0 -0.7 0.3 -0.7 0.7 v 6.6 c 0 0.4 0.3 0.7 0.7 0.7 h 0.6 c 0.4 0 0.7 -0.3 0.7 -0.7 v -2.6 c 0 -0.4 0.3 -0.7 0.7 -0.7 h 10.6 c 0.4 0 0.7 0.3 0.7 0.7 v 2.6 c 0 0.4 0.3 0.7 0.6 0.7 h 0.7 c 0.4 0 0.7 -0.3 0.7 -0.7 V 8.7 c 0 -0.4 -0.3 -0.7 -0.7 -0.7 Z M 15 11 c -0.6 0 -1 -0.4 -1 -1 s 0.4 -1 1 -1 s 1 0.4 1 1 s -0.4 1 -1 1 Z\"><\/path><\/b><\/svg><\/span><\/button><\/div>\n<div class=\"D_F en_0 M_3gJOe A_6Eb4 C_Z1VRpVF\" data-test-id=\"message-date\" style=\"color: #828c93; display: flex; flex-shrink: 0; font-size: 12px; margin-bottom: 0px; margin-left: 8px; margin-right: 8px; margin-top: 0px;\"> <b>Jun 23 at 7:49 AM<\/b><\/div>\n<div class=\"D_F ab_CI Y_68F4 en_0 cdPFi_ZpQYvz H_6MGW W_6MGW lv_1IWXzk h_Z13pql2 h4_2d9T5e\" style=\"-webkit-box-align: start; align-items: flex-start; display: flex; fill: #e0e4e9; flex-shrink: 0; height: 24px; margin-top: -4px; transform: scale(1); transition-delay: 0s, 0s; transition-duration: 0.1s, 0.1s; transition-property: transform, transform; transition-timing-function: linear, linear; width: 24px;\"> <button aria-label=\"This message is not starred\" aria-pressed=\"false\" class=\"c27KHO0_n b_0 M_0 i_0 I_T y_Z2uhb3X A_6EqO r_P C_q cvhIH6_T ir3_1JO2M7 P_0\" data-test-id=\"icon-btn-star\" style=\"-webkit-appearance: none; -webkit-tap-highlight-color: transparent; background-color: transparent; border-bottom-color: currentColor; border-bottom-style: none; border-bottom-width: 0px; border-image-outset: 0; border-image-repeat: stretch; border-image-slice: 100%; border-image-source: none; border-image-width: 1; border-left-color: currentColor; border-left-style: none; border-left-width: 0px; border-right-color: currentColor; border-right-style: none; border-right-width: 0px; border-top-color: currentColor; border-top-style: none; border-top-width: 0px; color: inherit; cursor: pointer; font-family: Helvetica Neue,Segoe UI,Helvetica,Arial,sans-serif; font-size: 13px; line-height: 0; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;\" tabindex=\"-1\" title=\"Star\" type=\"button\"><span class=\"D_F ab_C gl_C W_6D6F\" style=\"-webkit-box-align: center; -webkit-box-pack: center; align-items: center; display: flex; justify-content: center; width: 100%;\"><svg class=\"D_X W_6MGW H_6MGW cdPFi_q cZW7ROP_n en_0 cvhIH6_T\" style=\"-webkit-tap-highlight-color: transparent; display: inline-block; fill: inherit; flex-shrink: 0; height: 24px; pointer-events: none; width: 24px;\" viewbox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><b><path d=\"M 15.718 8.35 c -0.066 -0.205 -0.256 -0.35 -0.47 -0.35 h -3.656 l -1.13 -3.475 c -0.066 -0.203 -0.256 -0.34 -0.47 -0.34 s -0.403 0.137 -0.47 0.34 L 8.393 8 H 4.736 c -0.214 0 -0.403 0.145 -0.47 0.35 c -0.066 0.203 0.007 0.426 0.18 0.552 l 2.958 2.152 l -1.13 3.482 c -0.066 0.204 0.006 0.427 0.18 0.553 c 0.173 0.125 0.407 0.125 0.58 0 l 2.958 -2.153 l 2.958 2.152 c 0.087 0.062 0.19 0.094 0.29 0.094 s 0.205 -0.032 0.29 -0.095 c 0.174 -0.127 0.247 -0.35 0.18 -0.554 l -1.13 -3.482 l 2.96 -2.152 c 0.172 -0.126 0.244 -0.35 0.178 -0.553 Z\"><\/path><\/b><\/svg><\/span><\/button><\/div>\n<\/header>\n<p> <\/p>\n<div data-test-id=\"message-body-container\" style=\"-webkit-text-stroke-width: 0px; color: #1d2228; font-family: Helvetica Neue,Segoe UI,Helvetica,Arial,Lucida Grande,sans-serif; font-size: 13px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;\">\n<div class=\"I_52qC D_FY W_6D6F\" data-test-id=\"message-view-body\" style=\"background-color: white; display: table; width: 100%;\">\n<div class=\"X_6MGW\" style=\"padding-left: 24px;\"> <b><\/b><\/div>\n<div class=\"msg-body P_wpofO iy_A mq_AS\" data-test-id=\"message-view-body-content\" style=\"font-family: Helvetica Neue,Helvetica,Arial,sans-serif; line-height: normal; overflow-wrap: break-word; overflow-x: auto; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 2px;\">\n<div class=\"jb_0 X_6MGW N_6Fd5\" style=\"padding-bottom: 0px; padding-left: 24px; padding-right: 16px;\">\n<div>\n<div dir=\"ltr\"> <b>Kudos to Pete for 60 years! And I&#8217;ve always thought he was much younger than you&#8230;&#8230;<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>Catching up on your podcast, I was surprised to learn that no one answered your call for a spare filter. <\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>I&#8217;m one of those older guys who is making his way back after leaving amateur radio in 1968 for girls and\/or recreational drugs.<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>No one told me that The Force (electro-motive, that is) would require me to catch up on all the junk I would have acquired during my nearly 50 years away from the hobby (see list below).<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>A recent impulse purchase, the most beautiful thing with tubes ever made (SX-42), happened to be near Newington. On the way home I visited ARRL HQ hoping they had some sort of a chapel where I could perform an act of penance and ask for guidance in dealing with my affliction. Apparently, this is the equivalent of asking a crack dealer where the closest Narcotics Anonymous meeting is held. I ended up buying a copy of &#8220;200 Meters and Down&#8221; and have since acquired a couple of Atwater Kent projects. <\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>My place is full now, and my sweetheart would like back the half of her garage I&#8217;ve slowly taken by electronic eminent domain. It seems that for every 100 pounds that departs to a ham fest, 125 pounds comes back. Is this considered a normal ratio?<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>In order to be able to tell her that I have, indeed, gotten rid of something, I&#8217;ll be sending you a F 455 filter (QRZ address OK?).<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>Thanks for you help,<\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"> <b>&#8211;Brad <\/b><\/div>\n<div dir=\"ltr\"> <b><\/b><\/div>\n<div dir=\"ltr\"><\/div>\n<div dir=\"ltr\"><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<p> <b><\/b><i><\/i><u><\/u><sub><\/sub><sup><\/sup><strike><\/strike><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Peter VK2EMU sent me this ad a while back. He said he regretted being unable to send a filter &#8212; all he could send was the ad. Thanks Peter &#8212; I think that ad is a work of art. Radio art. Thanks too to all those who sent me mechanical filters. Pete sent the first &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2019\/10\/03\/the-collins-mechanical-filter-an-advertisement-from-australia-1963\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The Collins Mechanical Filter &#8212; An Advertisement from Australia, 1963&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":7221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,16,100,483,484],"tags":[],"class_list":["post-7220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-australia","category-filters","category-old-radio","category-pete","category-wa6ara"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7220","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=7220"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7220\/revisions"}],"predecessor-version":[{"id":7222,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/7220\/revisions\/7222"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/7221"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=7220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=7220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=7220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}