{"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_post_was_ever_published":false,"_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}},"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":46502,"url":"https:\/\/swling.com\/blog\/2020\/11\/ieee-spectrum-the-11-greatest-vacuum-tubes-youve-never-heard-of\/","url_meta":{"origin":52991,"position":1},"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":2},"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":3},"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":4},"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":[]},{"id":15023,"url":"https:\/\/swling.com\/blog\/2015\/10\/dan-spots-an-extremely-rare-hro-600-on-ebay\/","url_meta":{"origin":52991,"position":5},"title":"Dan spots an extremely rare HRO-600 on eBay","author":"Thomas","date":"October 4, 2015","format":false,"excerpt":"SWLing Post contributor, Dan Robinson, writes: Wow . . . a huge, amazing rarity...this is perhaps the rarest of radios, the HRO-600. It is almost never seen on the used market and when it is, it is usually in non-operational condition. In its day it was quite advanced, though now,\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\/2015\/10\/HRO-660-Back-1024x483.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/HRO-660-Back-1024x483.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/HRO-660-Back-1024x483.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/10\/HRO-660-Back-1024x483.jpg?resize=700%2C400&ssl=1 2x"},"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}]}}