{"id":3284,"date":"2022-10-28T15:04:00","date_gmt":"2022-10-28T04:04:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2022\/10\/28\/soldersmoke-podcast-241-mars-direct-conversion-ptos-and-glue-sticks-anniversary-of-the-bitx20-multus-proficio-sdr-boatanchor-station-mailbag\/"},"modified":"2025-07-22T18:02:55","modified_gmt":"2025-07-22T08:02:55","slug":"soldersmoke-podcast-241-mars-direct-conversion-ptos-and-glue-sticks-anniversary-of-the-bitx20-multus-proficio-sdr-boatanchor-station-mailbag","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2022\/10\/28\/soldersmoke-podcast-241-mars-direct-conversion-ptos-and-glue-sticks-anniversary-of-the-bitx20-multus-proficio-sdr-boatanchor-station-mailbag\/","title":{"rendered":"SolderSmoke Podcast #241 Mars, Direct Conversion, PTOs and Glue Sticks, Anniversary of the BITX20, Multus Proficio SDR, Boatanchor Station, MAILBAG"},"content":{"rendered":"<div class=\"separator\" style=\"clear: both; text-align: center;\"><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/DC20RX20Test20RIG.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/DC20RX20Test20RIG.jpg\" width=\"400\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><span style=\"font-size: x-small;\">The board I use to test DC RX circuits<\/span> <\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><\/div>\n<p><b>SolderSmoke Podcast #241 is available<\/b><\/p>\n<p><span style=\"color: black;\"><b>Audio (podcast):<\/b> <\/span><b><a href=\"http:\/\/soldersmoke.com\/soldersmoke241.mp3\">http:\/\/soldersmoke.com\/soldersmoke241.mp3<\/a><\/b><\/p>\n<p><b>Video (YouTube): <a href=\"https:\/\/www.youtube.com\/watch?v=p_rAQSPiLuE\">(215) SolderSmoke Podcast #241 October 28, 2022 &#8211; YouTube<\/a><\/b><\/p>\n<p><b><span style=\"color: black;\"><u>Introduction:<\/u><\/span><\/b><\/p>\n<p><span style=\"color: black;\"><b>Back on Mars. Opposition approaching. I have a Mars filter. And (like T.O.M.) a Mars globe. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>N2CQR DXCC done<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>SolderSmoke in the WayBack Machine<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>Sticker news<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b>PARTS CANDY &#8212; Don&#8217;t Scrimp with a Crimp! <\/b><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b><span style=\"color: black;\"><u>Bill&#8217;s Bench<\/u><o:p><\/o:p><\/span><\/b><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>School DC RX projects &#8212; in Hyderabad and Northern Virginia. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>Direct Conversion Receivers &#8212; Keeping it Simple, Learning a Lot. A step beyond the Michigan Mighty Mite. Do we really need 100db? Do we really need to shield VFOs? Farhan&#8217;s super-simple and stable Colpitts PTO. Audio amps, 1000-8 transformers and rolling your own LM386<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>PTOs and Glue Stick PTOs. Paul Clark WA1MAC. Brass vs. Steel bolts. #20 thread vs. #28 thread. Backlash Blues. The best Glue Sticks. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>2 meters and the VWS. Bill has a Baofeng. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b><span style=\"color: black;\"><u>SHAMELESS COMMERCE: MOSTLY DIY RF<\/u><o:p><\/o:p><\/span><\/b><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b><span style=\"color: black;\"><u>Pete&#8217;s Bench<\/u><o:p><\/o:p><\/span><\/b><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>20th Anniversary of the BITX20 Pete&#8217;s early BITX rigs. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>Computer Woes<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>The Multus Proficio SDR rig<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"color: black;\"><b>Simple SSB in China BA7LNN<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b><span style=\"color: black;\">Things of beauty: <\/span><span face=\"\"Arial\",sans-serif\" style=\"background: white; color: #222222;\">Tempo One, NCX-3 and a SBE-33<\/span><span style=\"color: black;\"><o:p><\/o:p><\/span><\/b><\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><b><span style=\"color: black;\">MAILBAG<o:p><\/o:p><\/span><\/b><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; NS7V is listening. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Graham G3MFJ sent SPRAT on a stick.<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Nick M0NTV FB Glue Stick and 17 Shelf videos. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Dino KL0S HP8640 Junior<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Mark AA7TA Read the SolderSmoke Book<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Steve EI5DD Connaught (Ireland) Regional News<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Dave K8WPE Planting the seeds of ham radio interest <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Peter VK3YE Ruler idea on PTO frequency readout<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Michael AG5VG Glue Stick PTO<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Tobias A polymath with UK and Italy connections. And cool tattoos. <o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Alain F4EIT French DC receiver<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Michael S. was in USMC, working on PCM\/TDM gear<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Alan Yates writes up Amazon transformer problem<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Todd VE7BPO, Dale W4OP, Wes W7ZOI<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Farhan VU2ESE sent me an sBITX<o:p><\/o:p><\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><span><b>&#8212; Todd K7TFC The Revenge of Analog<\/b><\/span><\/p>\n<p style=\"margin: 0in;\"><b><span>&#8212; Jim Olds<\/span><span> <\/span><span>Building QRP HB gear <\/span><span> <\/span><\/b><\/p>\n<p style=\"margin: 0in;\"><b><span style=\"font-size: 13.5pt;\"><br \/><\/span><\/b><\/p>\n<p style=\"margin: 0in;\"><b><span style=\"font-size: 13.5pt;\"><\/span><\/b><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEjlaaDkjkKjh9tlUHKyqxW6rNdyJZbm9pGqP8hkOvppy9rNF7CJ0avuu6QwQQmtjnDevGQBoQlS3U0SmiHDeBhzfFck4kW0ugHg3iLTy2fxzZQPaSPVJAS4sjrG-nlcwzTXnvxyrwLydk_BHy8ShpV8-L-nRFn2MVfauUom3rU1xyj4CX2vu1htCGkA\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" data-original-height=\"261\" data-original-width=\"500\" height=\"209\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/image_1753073550.png\" width=\"400\" \/><\/a><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b>The Multus SDR rig Pete discussed<\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><br \/><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEigiu3A_fa1FJE8LzEHNp0NIGCJCS7u1aubsuLvLbUgQgTh8opFOVh2-C_9brrbWR9RGTxHplxqUh3Rp_QFecxEvzv_e_KRxzJmqorhYEr6TxfmfGD1Hx7HruiBCzEuGUci3ypZ_lz8uBNVzuL33S5A6rDW-WKvaMJ4hyvj7j8w_qbWBJnmJM_zwP67\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" data-original-height=\"553\" data-original-width=\"579\" height=\"382\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/image_1753073542.png\" width=\"400\" \/><\/a><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b>The older rigs Pete mentioned<\/b><\/div>\n<\/div>\n<p style=\"margin: 0in;\"><b><span style=\"font-size: 13.5pt;\"><br \/><\/span><\/b><\/p>\n<p style=\"margin: 0in;\"><b><\/b><\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEhX-CWs-bSvCDO_2BXwfFafw9Gh6VoC-_pS3OVFjiT4p1IeWjEBtFmGzioG7l78xlVffl4yhsl0egXi0t0c-aLdNjZbyuJVM4NkqqrZrhnquWqgf7FBl2-mFal9Vk4ehdP7vRwbR2E47mReq3mXnw4BC1lnHzZmHAhcqQ20rRDfRNV81WhzGdRd9pCE\/s4032\/My%20build%20of%20FARHAN's%20DC%20RX.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/image_1753073545.jpg's%20DC%20RX.jpg\" width=\"400\" \/><\/a><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b>My version of DC RX that Farhan is working on<\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><br \/><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b><a href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/VK3YE20PTO20RULER20IDEA20INVERTED.jpg\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"3024\" data-original-width=\"4032\" height=\"300\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2022\/10\/VK3YE20PTO20RULER20IDEA20INVERTED.jpg\" width=\"400\" \/><\/a><\/b><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\"><b>My PTO with VK3YE&#8217;s ruler frequency readout<\/b><\/div>\n<\/p>\n<p style=\"-webkit-text-stroke-width: 0px; font-variant-caps: normal; font-variant-ligatures: normal; orphans: 2; text-decoration-color: initial; text-decoration-style: initial; text-decoration-thickness: initial; widows: 2; word-spacing: 0px;\"><span style=\"font-size: 18px;\"><br \/><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The board I use to test DC RX circuits SolderSmoke Podcast #241 is available Audio (podcast): http:\/\/soldersmoke.com\/soldersmoke241.mp3 Video (YouTube): (215) SolderSmoke Podcast #241 October 28, 2022 &#8211; YouTube Introduction: Back on Mars. Opposition approaching. I have a Mars filter. And (like T.O.M.) a Mars globe. N2CQR DXCC done SolderSmoke in the WayBack Machine Sticker news &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2022\/10\/28\/soldersmoke-podcast-241-mars-direct-conversion-ptos-and-glue-sticks-anniversary-of-the-bitx20-multus-proficio-sdr-boatanchor-station-mailbag\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;SolderSmoke Podcast #241 Mars, Direct Conversion, PTOs and Glue Sticks, Anniversary of the BITX20, Multus Proficio SDR, Boatanchor Station, MAILBAG&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":3285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,35,66,365,40,49,53],"tags":[],"class_list":["post-3284","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitx20","category-direct-conversion","category-farhan","category-pto","category-sdr","category-soldersmoke-podcast","category-vfo"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3284","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=3284"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3284\/revisions"}],"predecessor-version":[{"id":3290,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3284\/revisions\/3290"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/3285"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}