![](\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2016\/02\/03504.png\")
<\/a><\/div>\n AA1TJ writes:<\/b> AA1TJ writes: I spent most of a week working to raise the RF output power from my unijunction transmitter to nearly 1mW. I was rewarded this evening with two contacts. Jim\/W1PID exchanged (599\/449) signal reports with me from Sanbornton, NH (112km) at 2210z! Dave\/K1SWL did the same (589\/229) from Newport, NH (95km) some four minutes … Continue reading “A Probable First: First Ever Radio Contact Using Unijunction Transistor as the Transmitter”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":173,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85,87,31,86],"tags":[],"class_list":["post-172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-minimalist-radio","category-qrp","category-radio-history","category-rainey-michael"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/172","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=172"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/172\/revisions"}],"predecessor-version":[{"id":174,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/172\/revisions\/174"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/173"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/b> I spent most of a week working to raise the RF output power from my unijunction transmitter to nearly 1mW. I was rewarded this evening with two contacts. <\/i><\/span><\/b>
<\/b><\/span><\/i>
Jim\/W1PID exchanged (599\/449) signal reports with me from Sanbornton, NH (112km) at 2210z! <\/i><\/span><\/b>
<\/b><\/span><\/i>
Dave\/K1SWL did the same (589\/229) from Newport, NH (95km) some four minutes later! <\/i><\/span><\/b>
<\/b><\/span><\/i>
I should think these were the first-ever radio contacts made using a unijunction transistor as the transmitter. <\/i><\/span><\/b>
<\/b><\/span><\/i>
FYI: my receiver was comprised of a single 1N34a germanium diode mixer followed by a single 2N35 germanium transistor audio amplifier. Great signals on this end.<\/i><\/span><\/b>
<\/b>
Wikipedia on Unijunction Transistors:<\/b> https:\/\/en.wikipedia.org\/wiki\/Unijunction_transistor<\/b><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"