{"id":52991,"date":"2022-06-08T09:32:49","date_gmt":"2022-06-08T13:32:49","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=52991"},"modified":"2022-06-08T09:32:49","modified_gmt":"2022-06-08T13:32:49","slug":"high-speed-a-d-conversion-in-1965-with-a-vacuum-tube","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2022\/06\/high-speed-a-d-conversion-in-1965-with-a-vacuum-tube\/","title":{"rendered":"High Speed A\/D Conversion in 1965, with a Vacuum Tube!"},"content":{"rendered":"<p><strong><a href=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-52993\" src=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1.jpeg\" alt=\"\" width=\"1023\" height=\"518\" srcset=\"https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1.jpeg 1023w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1-300x152.jpeg 300w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1-768x389.jpeg 768w, https:\/\/swling.com\/blog\/wp-content\/uploads\/2022\/06\/Tube-9-Bit-1-624x316.jpeg 624w\" sizes=\"auto, (max-width: 1023px) 100vw, 1023px\" \/><\/a>Many thanks to SWLing Post contributor, Mark (AE2EA), with the Antique Wireless Museum who shares the following:<\/strong><\/p>\n<p style=\"padding-left: 40px;\">This isn&#8217;t a SWL, or even a ham radio story, but it&#8217;s a nice technology story about a vacuum tube at the beginning of the digital age and near the end of the tube age, that I thought you might be interested in:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/ywy6xXjwgmI?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/youtu.be\/ywy6xXjwgmI\" target=\"_blank\" rel=\"noopener\">Click here to view on YouTube.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many thanks to SWLing Post contributor, Mark (AE2EA), with the Antique Wireless Museum who shares the following: This isn&#8217;t a SWL, or even a ham radio story, but it&#8217;s a nice technology story about a vacuum tube at the beginning of the digital age and near the end of the tube age, that I thought [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[3],"tags":[8181,5114,7002],"class_list":["post-52991","post","type-post","status-publish","format-standard","hentry","category-news","tag-antique-wireless-association","tag-tubes","tag-vacuum-tubes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-dMH","jetpack-related-posts":[{"id":19217,"url":"https:\/\/swling.com\/blog\/2016\/05\/tubes-and-valves-dans-research-uncovers-three-vintage-films\/","url_meta":{"origin":52991,"position":0},"title":"Tubes and Valves: Dan&#8217;s research uncovers three vintage films","author":"Thomas","date":"May 29, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor, DanH, who writes: I have been working on my Hammarlund SP600-JX-21 for the last two weeks. Results of the filter cap replacement were encouraging. I\u2019m going after an AVC issue that is probably capacitor-related as well before doing a re-alignment with the signal generator.\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"Hammarlund-SP-600","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/05\/Hammarlund-SP-600.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/05\/Hammarlund-SP-600.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/05\/Hammarlund-SP-600.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/05\/Hammarlund-SP-600.jpg?resize=700%2C400 2x"},"classes":[]},{"id":66082,"url":"https:\/\/swling.com\/blog\/2026\/05\/from-compactrons-to-nuvistors-vacuum-tubes-last-hurrah\/","url_meta":{"origin":52991,"position":1},"title":"From Compactrons to Nuvistors: Vacuum Tubes\u2019 Last Hurrah","author":"Thomas","date":"May 13, 2026","format":false,"excerpt":"Many thanks to SWLing Post contributor Dennis Dura, who shares this article from Hackaday that explores the fascinating \u201clast gasp\u201d innovations of vacuum tube technology long after transistors had already begun taking over the electronics industry. The article dives into late-era tube developments like compactrons, lighthouse tubes, and RCA\u2019s remarkable\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/01\/Hallicrafters-SX-24-Skyrider-Defiant.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/01\/Hallicrafters-SX-24-Skyrider-Defiant.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/01\/Hallicrafters-SX-24-Skyrider-Defiant.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/01\/Hallicrafters-SX-24-Skyrider-Defiant.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":46502,"url":"https:\/\/swling.com\/blog\/2020\/11\/ieee-spectrum-the-11-greatest-vacuum-tubes-youve-never-heard-of\/","url_meta":{"origin":52991,"position":2},"title":"IEEE Spectrum: &#8220;The 11 Greatest Vacuum Tubes You\u2019ve Never Heard Of&#8221;","author":"Thomas","date":"November 16, 2020","format":false,"excerpt":"Many thanks to SWLing Post contributor, Ed, who writes: Hi Thomas, SWLing Post readers who are fans of tube radios might enjoy reading about \"The 11 Greatest Vacuum Tubes You've Never Heard Of\" in this IEEE Spectrum article. While only a few of them have been used in radio and\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/VOA-Site-B-57-of-170.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/VOA-Site-B-57-of-170.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/VOA-Site-B-57-of-170.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/05\/VOA-Site-B-57-of-170.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":41103,"url":"https:\/\/swling.com\/blog\/2019\/12\/video-tube-radio-transmitter-designs-from-the-1920s\/","url_meta":{"origin":52991,"position":3},"title":"Video: Tube radio transmitter designs from the 1920s","author":"Thomas","date":"December 7, 2019","format":false,"excerpt":"Many thanks to SWLing Post contributor, Paul Evans (W4\/VP9KF), who shares the following article from Hackaday: The origin of the term \u201cbreadboard\u201d comes from an amusing past when wooden bread boards were swiped from kitchens and used as a canvas for radio hobbyists to roll homemade capacitors, inductors, and switches.\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Antique-Radio.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Antique-Radio.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Antique-Radio.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2019\/12\/Antique-Radio.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":56221,"url":"https:\/\/swling.com\/blog\/2023\/04\/radio-waves-vacuum-tube-revival-kmj-documentary-2023-domestic-broadcasting-survey-and-radio-in-zimbabwe\/","url_meta":{"origin":52991,"position":4},"title":"Radio Waves: Vacuum Tube Revival, KMJ Documentary, 2023 Domestic Broadcasting Survey, and Radio in Zimbabwe","author":"Thomas","date":"April 4, 2023","format":false,"excerpt":"Radio Waves:\u00a0 Stories Making Waves in the World of Radio Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a collection of links to interesting stories making waves in the world of radio.\u00a0Enjoy! Many thanks to SWLing Post contributors Ulis Fleming, Dennis Dura, and Tracy Wood for the following tips: One Man\u2019s Quest\u2026","rel":"","context":"In &quot;Broadcasters&quot;","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Transistor-radio-dial-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Transistor-radio-dial-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Transistor-radio-dial-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Transistor-radio-dial-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2021\/09\/Transistor-radio-dial-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":1017,"url":"https:\/\/swling.com\/blog\/2010\/12\/cardboard-tube-radio-kit\/","url_meta":{"origin":52991,"position":5},"title":"Cardboard Tube Radio Kit","author":"Thomas","date":"December 21, 2010","format":false,"excerpt":"While cruising Retro Thing, this cardboard tube radio kit caught my eye. It's available for 49.95 EUR from Conrad International in Germany. I would have never thought about combining the warm character of vacuum tubes with a cardboard chassis. Still, one builder's report is quite positive and assembly time is\u2026","rel":"","context":"In &quot;Kits&quot;","block_context":{"text":"Kits","link":"https:\/\/swling.com\/blog\/category\/kits\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2010\/12\/CardboardTubeRadioKit-300x246.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/52991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=52991"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/52991\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=52991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=52991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=52991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}