{"id":24522,"date":"2026-10-27T03:27:00","date_gmt":"2026-10-27T00:27:00","guid":{"rendered":"https:\/\/audioportal.club\/diy\/?p=24522"},"modified":"2026-10-26T19:08:19","modified_gmt":"2026-10-26T16:08:19","slug":"4cx20000a-moshhnyj-luchevoj-tetrod-svetlana","status":"publish","type":"post","link":"https:\/\/audioportal.club\/diy\/spravochnik\/radiolampy\/4cx20000a-moshhnyj-luchevoj-tetrod-svetlana.html","title":{"rendered":"4CX20000A \u2014 \u043c\u043e\u0449\u043d\u044b\u0439 \u043b\u0443\u0447\u0435\u0432\u043e\u0439 \u0442\u0435\u0442\u0440\u043e\u0434 (Svetlana)"},"content":{"rendered":"<p>4CX20000A &#8212; \u043c\u043e\u0449\u043d\u044b\u0439 \u043b\u0443\u0447\u0435\u0432\u043e\u0439 \u0442\u0435\u0442\u0440\u043e\u0434 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0437\u0430\u0432\u043e\u0434\u0430 &#171;\u0421\u0432\u0435\u0442\u043b\u0430\u043d\u0430&#187; (Svetlana, \u0421\u0430\u043d\u043a\u0442-\u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433). \u041d\u0438\u0436\u0435 &#8212; \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043b\u0430\u043c\u043f\u044b \u0438\u0437 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430 Svetlana (\u043d\u0430 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u043c \u044f\u0437\u044b\u043a\u0435, \u043a\u0430\u043a \u0432 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u0435) \u0438 \u043f\u043e\u043b\u043d\u044b\u0439 \u0444\u0430\u0439\u043b \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0441\u043a\u0430\u0447\u0438\u0432\u0430\u043d\u0438\u044f.<\/p>\n<p>\r\n            <center>\r\n            <a target=\"blank\" href=\"https:\/\/audioportal.club\/attachment\/attachment.php?out2=jpg&out1=https:\/\/audioportal.club\/diy\/wp-content\/images\/articles\/old\/tubes\/tubes-sv\/graphics\/products\/metal\/4CX20000A\">\r\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/audioportal.club\/diy\/wp-content\/images\/articles\/old\/tubes\/tubes-sv\/graphics\/products\/metal\/4CX20000A.jpg\" class=\"aligncenter size-thumbnail\" width=\"150\" height=\"150\" alt=\"4CX20000A\" title=\"4CX20000A \u2014 \u043c\u043e\u0449\u043d\u044b\u0439 \u043b\u0443\u0447\u0435\u0432\u043e\u0439 \u0442\u0435\u0442\u0440\u043e\u0434 (Svetlana)\">\r\n            <span style=\"color: #ff0000; font-size: 8pt;\">^\u041d\u0430\u0436\u043c\u0438\u0442\u0435 \u0434\u043b\u044f \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f^<\/span>\r\n            <\/a>\r\n            <\/center>\r\n            <\/p>\n<h2>Svetlana 4CX20000A &#8212; Radial Beam Power Tetrode<\/h2>\n<p>4CX20,000A\/8990 Radial Beam Power Tetrode<\/p>\n<p>The Svetlana\u00aa 4CX20,000A\/8990 is a high-performance ceramic\/metal power tetrode designed for audio and radio frequency applications. It is particularly well-suited for use in VHF FM broadcast transmitters in the Band II 88-108 MHz frequency range. The Svetlana 4CX20,000A\/8990 has a directly-heated thoriated tungsten mesh filament for mechanical ruggedness and good VHF electrical performance.<\/p>\n<p>The Svetlana 4CX20,000A\/8990 is manufactured in the Svetlana factory in St. Petersburg, Russia, and is a direct replacement for the 4CX20,000A\/8990 manufactured in the United States.<\/p>\n<p style=\"text-align: center;\"><a class=\"ap-skachat\" target=\"_blank\" href=\"https:\/\/audioportal.club\/attachment\/attachment-forum.php?out1=0&amp;out2=\/diy\/wp-content\/images\/articles\/old\/tubes\/tubes-sv\/graphics\/products\/pdf\/4CX20000Aspec.pdf\">\u2b07 \u0421\u043a\u0430\u0447\u0430\u0442\u044c \u043f\u043e\u043b\u043d\u043e\u0435 \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 4CX20000A (PDF, \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u0438\u0439)<\/a><\/p>\n<p><i>\u0418\u0437 \u0441\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u0438\u043a\u0430 Svetlana \u043d\u0430 \u0441\u0442\u0430\u0440\u043e\u043c \u0441\u0430\u0439\u0442\u0435 \u0410\u0443\u0434\u0438\u043e\u041f\u043e\u0440\u0442\u0430\u043b\u0430 (2006).<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>4CX20000A &#8212; \u043c\u043e\u0449\u043d\u044b\u0439 \u043b\u0443\u0447\u0435\u0432\u043e\u0439 \u0442\u0435\u0442\u0440\u043e\u0434 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0437\u0430\u0432\u043e\u0434\u0430 &#171;\u0421\u0432\u0435\u0442\u043b\u0430\u043d\u0430&#187; (Svetlana, \u0421\u0430\u043d\u043a\u0442-\u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433). \u041d\u0438\u0436\u0435 &#8212; \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043b\u0430\u043c\u043f\u044b \u0438\u0437 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430 Svetlana (\u043d\u0430 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u043c \u044f\u0437\u044b\u043a\u0435, \u043a\u0430\u043a \u0432 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u0435) \u0438 \u043f\u043e\u043b\u043d\u044b\u0439 \u0444\u0430\u0439\u043b \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0441\u043a\u0430\u0447\u0438\u0432\u0430\u043d\u0438\u044f. ^\u041d\u0430\u0436\u043c\u0438\u0442\u0435 \u0434\u043b\u044f \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f^ Svetlana 4CX20000A &#8212; Radial Beam Power Tetrode 4CX20,000A\/8990 Radial Beam Power Tetrode The Svetlana\u00aa 4CX20,000A\/8990 is a high-performance ceramic\/metal power tetrode designed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1761],"tags":[],"class_list":["post-24522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-radiolampy"],"rttpg_featured_image_url":{"full":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",900,900,false],"landscape":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",900,900,false],"portraits":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",900,900,false],"thumbnail":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x-150x150.jpg",150,150,true],"medium":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x-300x300.jpg",300,300,true],"large":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",682,682,false],"1536x1536":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",900,900,false],"2048x2048":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x.jpg",900,900,false],"frontier-thumbnail":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x-280x180.jpg",280,180,true],"frontier-featured":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x-640x300.jpg",640,300,true],"arpw-thumbnail":["https:\/\/audioportal.club\/diy\/wp-content\/uploads\/2020\/10\/no-image-900x-50x50.jpg",50,50,true]},"rttpg_author":{"display_name":"sergio","author_link":"https:\/\/audioportal.club\/diy\/author\/sergio"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/audioportal.club\/diy\/spravochnik\/radiolampy\" rel=\"category tag\">\u0420\u0430\u0434\u0438\u043e\u043b\u0430\u043c\u043f\u044b<\/a>","rttpg_excerpt":"4CX20000A &#8212; \u043c\u043e\u0449\u043d\u044b\u0439 \u043b\u0443\u0447\u0435\u0432\u043e\u0439 \u0442\u0435\u0442\u0440\u043e\u0434 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0437\u0430\u0432\u043e\u0434\u0430 &#171;\u0421\u0432\u0435\u0442\u043b\u0430\u043d\u0430&#187; (Svetlana, \u0421\u0430\u043d\u043a\u0442-\u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433). \u041d\u0438\u0436\u0435 &#8212; \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043b\u0430\u043c\u043f\u044b \u0438\u0437 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430 Svetlana (\u043d\u0430 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u043c \u044f\u0437\u044b\u043a\u0435, \u043a\u0430\u043a \u0432 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b\u0435) \u0438 \u043f\u043e\u043b\u043d\u044b\u0439 \u0444\u0430\u0439\u043b \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0441\u043a\u0430\u0447\u0438\u0432\u0430\u043d\u0438\u044f. ^\u041d\u0430\u0436\u043c\u0438\u0442\u0435 \u0434\u043b\u044f \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f^ Svetlana 4CX20000A &#8212; Radial Beam Power Tetrode 4CX20,000A\/8990 Radial Beam Power Tetrode The Svetlana\u00aa 4CX20,000A\/8990 is a high-performance ceramic\/metal power tetrode designed&hellip;","_links":{"self":[{"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/posts\/24522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/comments?post=24522"}],"version-history":[{"count":0,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/posts\/24522\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/media\/6929"}],"wp:attachment":[{"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/media?parent=24522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/categories?post=24522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/audioportal.club\/diy\/wp-json\/wp\/v2\/tags?post=24522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}