{"id":4603,"date":"2014-09-17T09:47:00","date_gmt":"2014-09-16T23:47:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2014\/09\/17\/eclectic-electronics-powering-arduinos-with-tube-filament-voltage\/"},"modified":"2025-07-21T17:28:53","modified_gmt":"2025-07-21T07:28:53","slug":"eclectic-electronics-powering-arduinos-with-tube-filament-voltage","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2014\/09\/17\/eclectic-electronics-powering-arduinos-with-tube-filament-voltage\/","title":{"rendered":"Eclectic Electronics: Powering Arduinos with Tube Filament Voltage"},"content":{"rendered":"
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You know that you are dealing with a broad range of technology when you find yourself discussing how to power an Arduino microcontroller from the 12V AC voltage on a vacuum tube filament line. Thanks Pete. <\/b>

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Hi Bill,<\/b><\/span><\/div>\n
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There is only so much that can be said in 1 hour and 19 minutes so maybe here is some stuff for the blog. <\/b><\/span><\/div>\n
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The 1st thing on the list when working with the Arduino when it is not connected to the computer is to have a proper power supply. My research as indicated that 9 VDC \u201craw\u201d is a good starting point to power the Arduino boards so here are two supplies that will provide that power. <\/b><\/span><\/div>\n
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I did find that it was necessary to have an isolated supply when working with the \u201ctoob\u201d radios and even to isolate the RF into the radio using a ferrite core transformer \u2013some more tribal knowledge.<\/b><\/span><\/div>\n
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One supply takes an 8 VDC regulator and boosts its output to 9 VDC. The second uses a switching regulator and the beauty of the second is that the input can be either 12 V AC or DC. This is ideal for use in toob radios where you can sample the 12.6 VAC filament string.<\/b><\/span><\/div>\n
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73\u2019s<\/b><\/span><\/div>\n
Pete<\/b><\/span><\/div>\n

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Our book: “SolderSmoke — Global Adventures in Wireless Electronics” http:\/\/soldersmoke.com\/book.htm<\/a> Our coffee mugs, T-Shirts, bumper stickers: http:\/\/www.cafepress.com\/SolderSmoke<\/a> Our Book Store: http:\/\/astore.amazon.com\/contracross-20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

You know that you are dealing with a broad range of technology when you find yourself discussing how to power an Arduino microcontroller from the 12V AC voltage on a vacuum tube filament line. Thanks Pete. Hi Bill, There is only so much that can be said in 1 hour and 19 minutes so maybe … Continue reading “Eclectic Electronics: Powering Arduinos with Tube Filament Voltage”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4604,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67,41,101],"tags":[],"class_list":["post-4603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino","category-juliano-pete","category-tubes"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4603","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=4603"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4603\/revisions"}],"predecessor-version":[{"id":4606,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4603\/revisions\/4606"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/4604"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=4603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=4603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=4603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}