{"id":4844,"date":"2023-11-17T18:29:57","date_gmt":"2023-11-18T00:29:57","guid":{"rendered":"https:\/\/delphijustin.biz\/?p=4844"},"modified":"2023-11-18T16:08:48","modified_gmt":"2023-11-18T22:08:48","slug":"basketball-pump-signal-injector","status":"publish","type":"post","link":"https:\/\/delphijustin.biz\/basketball-pump-signal-injector\/","title":{"rendered":"Basketball pump signal injector"},"content":{"rendered":"\n<p>This is a simple signal injector that can fit inside a mini basketball pump it requires:<\/p>\n\n\n\n<ul>\n<li>1x dc blocking capacitor(10nF to 10uF) C3(2.2uF Axiel Film Capacitor)<\/li>\n\n\n\n<li>2x 100nF Capacitors C1 and C2<\/li>\n\n\n\n<li>2x 1k ohm resistors R1 and R2<\/li>\n\n\n\n<li>2x 4.7k ohm resistors R3 and R4<\/li>\n\n\n\n<li>2x General Purpose NPN low power transistors Q1 and Q2(I used PN2222A)<\/li>\n\n\n\n<li>A 1.2 to 14v dc power source<\/li>\n\n\n\n<li>A alligator ground clip<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/siginject.gif\"><img decoding=\"async\" loading=\"lazy\" width=\"1020\" height=\"770\" data-id=\"4845\"  src=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/siginject.gif\" alt=\"Circuit Diagram\" class=\"wp-image-4845\"\/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194615.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" data-id=\"4848\"  src=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194615-1024x768.jpg\" alt=\"The finished Device\" class=\"wp-image-4848\" srcset=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194615-1024x768.jpg 1024w, https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194615-300x225.jpg 300w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194146.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"2592\" height=\"1944\" data-id=\"4847\"  src=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194146.jpg\" alt=\"PCB Made from Vinyl Floor tile\" class=\"wp-image-4847\" srcset=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194146.jpg 2592w, https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194146-300x225.jpg 300w\" sizes=\"(max-width: 2592px) 100vw, 2592px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194203.jpg\"><img decoding=\"async\" loading=\"lazy\" width=\"2592\" height=\"1944\" data-id=\"4846\"  src=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194203.jpg\" alt=\"2.2uF DC Blocking capacitor\" class=\"wp-image-4846\" srcset=\"https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194203.jpg 2592w, https:\/\/delphijustin.biz\/wp-content\/uploads\/2023\/11\/IMG_20231116_194203-300x225.jpg 300w\" sizes=\"(max-width: 2592px) 100vw, 2592px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>This signal injector can come in handy for repairing radios, amplifers and old TVs and also square wave generator in a probe. Later on I will make a version that uses C1 and C2 as 470nF and R3 and R4 as 1 Megaohm and C3 as 47uF(Since the frequency is ultralow). <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The specs<\/h2>\n\n\n\n<p>Where R=R2 or R3, C=C1 or C2 and \\(C_{3}\\)=C3<\/p>\n\n\n\n<p>Frequency: \\(f=\\frac{1}{1.38RC}=1.5kHz\\)<\/p>\n\n\n\n<p>Output AC Resistance: \\(X_{C3}=\\frac{1}{2\\pi*fC_{3}}\\)<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"diy signal injector\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/7QUxtAUq4tY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">PCB Files<\/h2>\n\n\n\n<input type=\"hidden\" name=\"_fmakey\" id=\"fmakey\" value=\"103e4fd117\"><div id=\"file_manager_advanced\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This is a simple signal injector that can fit inside a mini basketball pump it requires: This signal injector can come in handy for repairing radios, amplifers and old TVs and also square wave generator in a probe. Later on I will make a version that uses C1 and C2 as 470nF and R3 and &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/delphijustin.biz\/basketball-pump-signal-injector\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Basketball pump signal injector&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"beyondwords_generate_audio":"","beyondwords_project_id":"","beyondwords_content_id":"","beyondwords_preview_token":"","beyondwords_player_style":"","beyondwords_language_id":"","beyondwords_title_voice_id":"","beyondwords_body_voice_id":"","beyondwords_summary_voice_id":"","beyondwords_error_message":"","beyondwords_disabled":"","beyondwords_delete_content":"","beyondwords_podcast_id":"","beyondwords_hash":"","publish_post_to_speechkit":"","speechkit_hash":"","speechkit_generate_audio":"","speechkit_project_id":"","speechkit_podcast_id":"","speechkit_error_message":"","speechkit_disabled":"","speechkit_access_key":"","speechkit_error":"","speechkit_info":"","speechkit_response":"","speechkit_retries":"","speechkit_status":"","speechkit_updated_at":"","_speechkit_link":"","_speechkit_text":""},"categories":[2],"tags":[706,610,542,172,171,707,536,150,33,708,200,176,168,646,133,611],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/posts\/4844"}],"collection":[{"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/comments?post=4844"}],"version-history":[{"count":4,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/posts\/4844\/revisions"}],"predecessor-version":[{"id":4859,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/posts\/4844\/revisions\/4859"}],"wp:attachment":[{"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/media?parent=4844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/categories?post=4844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/delphijustin.biz\/wp-json\/wp\/v2\/tags?post=4844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}