{"id":5064,"date":"2016-03-31T10:49:00","date_gmt":"2016-03-30T23:49:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2016\/03\/31\/from-wayne-and-garth-in-san-diego-emrfd-joy-of-oscillation-part-2\/"},"modified":"2025-07-21T18:18:31","modified_gmt":"2025-07-21T08:18:31","slug":"from-wayne-and-garth-in-san-diego-emrfd-joy-of-oscillation-part-2","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2016\/03\/31\/from-wayne-and-garth-in-san-diego-emrfd-joy-of-oscillation-part-2\/","title":{"rendered":"From Wayne and Garth in San Diego: EMRFD Joy of Oscillation Part 2"},"content":{"rendered":"
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Oh great and mighty masters of the SolderSmoke: <\/b><\/div>\n

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We’ve continued on with this project and it has been a lot of fun.<\/b><\/div>\n
Sure, there’s<\/b><\/div>\n
THE JOY OF OSCILLATION<\/b><\/div>\n
but we’ve progressed to<\/b><\/div>\n
THE JOY OF MODULATION (added a keyed buffer)<\/b><\/div>\n
THE JOY OF AMPLIFICATION (added driver and PA, not threatening QRO, yet)<\/b><\/div>\n

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THE JOY OF RADIATION (perhaps my favorite)<\/b>
THE JOY OF RECEPTION (picked up by RBN, yeah!)<\/b>
last on the list is to experience<\/b>
THE JOY OF COMMUNICATION<\/b>
<\/b>
for that, we’ll try out a number of different receivers. Cheap SW<\/b>
portable<\/b>. Softrock Lite. <\/b>websdr.org<\/b><\/span><\/a>.<\/b><\/p>\n

Does one try to count all the joys? \ud83d\ude42<\/b><\/p>\n

Here’s a few snaps:<\/p>\n

0.jpg – RBN evidence<\/b>
1.jpg – lashup on the lid of a tupperware container<\/b>
This worked great for throwing the work in progress in a backback for<\/b>
our build session meetups.<\/b>
2.jpg – Fig 1.34 less output LPF.<\/b>
3.jpg – The missing LPF. THE JOY OF FILTRATION (OK, that’s taking it too far.)<\/b>
<\/a><\/p>\n

4.jpg – Fig 1.35 amp with BD139 transistor.<\/b>
5.jpg – “breadboard” and a front panel to hold the T\/R switch. Key<\/b>
and cheap SW portable for RX. Waiting for DX contest to end, so I<\/b>
have a chance. \ud83d\ude42<\/b>
<\/a><\/b><\/b>
6.jpg – simple breadboard chassis<\/b>
<\/b>
Our fun has certainly been cheap. The parts cost, including PCB and 1<\/b>
BNC jack, was about $13 in low quantity from Mouser (and Diz) for all<\/b>
but the amp. The amp portion was $4 in low quantity from Mouser (and<\/b>
Diz), and most of that was the expensive heatsink. The “chassis” was<\/b>
just a piece of cheap 3\/4″ hardwood and lexan from home depot. I<\/b>
drilled and tapped the holes in the wood for the #4 screws. (Seems to<\/b>
hold quite nicely. I thought I might have to harden the threads with<\/b>
CA adhesive as is done sometimes with balsa.)<\/b>
<\/b>
If there are any of those air variable caps left that you are meting<\/b>
out to the worthy, well, like Wayne and Garth, “we are not worthy.”<\/b>
If you do have between 1 and 4 and find it in your heart, we’d be very<\/b>
grateful.<\/b>
<\/b>
Best regards,<\/b>
<\/b>
Drew<\/b>
kb9fko<\/b>
San Diego<\/b><\/i><\/u><\/sub><\/sup><\/strike><\/p>\n","protected":false},"excerpt":{"rendered":"

Oh great and mighty masters of the SolderSmoke: We’ve continued on with this project and it has been a lot of fun. Sure, there’s THE JOY OF OSCILLATION but we’ve progressed to THE JOY OF MODULATION (added a keyed buffer) THE JOY OF AMPLIFICATION (added driver and PA, not threatening QRO, yet) THE JOY OF … Continue reading “From Wayne and Garth in San Diego: EMRFD Joy of Oscillation Part 2”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":5065,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,85],"tags":[],"class_list":["post-5064","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-michigan-mighty-mite","category-minimalist-radio"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5064","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=5064"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5064\/revisions"}],"predecessor-version":[{"id":5072,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/5064\/revisions\/5072"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/5065"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=5064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=5064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=5064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}