{"id":2859,"date":"2023-08-22T00:14:08","date_gmt":"2023-08-21T15:14:08","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=2859"},"modified":"2023-08-22T00:14:08","modified_gmt":"2023-08-21T15:14:08","slug":"el34-pp-%ec%b8%a1%ec%a0%95","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=2859","title":{"rendered":"EL34 PP \uce21\uc815"},"content":{"rendered":"\n<p>\ub300\uac15 \ub9c8\ubb34\ub9ac\ub41c \uac83 \uac19\uc544 \uce21\uc815\uc744 \ud574\ubd05\ub2c8\ub2e4. \ud604\uc7ac \ud68c\ub85c\ub294 \uc774\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1921\" height=\"1218\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10.png\" alt=\"\" class=\"wp-image-2860\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10.png 1921w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10-800x507.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10-150x95.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10-768x487.png 768w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/image-10-1536x974.png 1536w\" sizes=\"auto, (max-width: 1921px) 100vw, 1921px\" \/><\/figure>\n<\/div>\n\n\n<p>Gain\uc740 21.5\ubc30 \uc815\ub3c4\uc785\ub2c8\ub2e4<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_222.png\" alt=\"\" class=\"wp-image-2861\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_222.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_222-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_222-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>2Vp-p \uc774\uc0c1\uc758 ringing\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub300\uac15 30KHz \ucd08\ubc18\ub300\uc758 \ubb54\uac00\uac00 \uc788\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. 165us \uc0ac\uc774\uc5d0 \ud30c\ud615\uc774 6\uac1c \uc815\ub3c4 \uc788\uc73c\ub2c8\uae4c\uc694.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_253.png\" alt=\"\" class=\"wp-image-2863\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_253.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_253-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_253-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_248.png\" alt=\"\" class=\"wp-image-2862\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_248.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_248-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_248-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>\uadf8\ub7f0\ub370 FRA\ub97c \ubcf4\uba74 \uac70\uae30\uc11c \ubc1c\uc9c4\uc774 \uc544\ub2c8\uace0 1dB \uc774\uc0c1 \uaebc\uc9c0\ub294 \uac83\uc774 \ubcf4\uc785\ub2c8\ub2e4. \uc774\uac83\uc774 \uc6d0\uc778\uc740 \uc544\ub2c8\uace0 \uacb0\uacfc\uc77c \uac83 \uac19\uc740\ub370 \uc6d0\uc778\uc774 \ubb54\uc9c0 \uad81\uae08\ud558\ub124\uc694.<\/p>\n\n\n\n<p>NFB \uc800\ud56d\uc774 7.5K\ub2c8\uae4c \uacc4\uc0b0\uc744 \ud574\ubcf4\uba74 30KHz \uc815\ub3c4\uc5d0\uc11c \ucee4\ud305\uc744 \ud558\ub824\uba74 6\ubc31 \uba87\uc2ed pF\uc774 \uc801\ub2f9\ud560 \uac83 \uac19\uc2b5\ub2c8\ub2e4. NFB \uc800\ud56d\uc5d0 680pF \uce90\ud328\uc2dc\ud130\ub97c \uc5c5\uc5b4\uc90d\ub2c8\ub2e4.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_252.png\" alt=\"\" class=\"wp-image-2864\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_252.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_252-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_252-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>600mV \uc815\ub3c4\ub85c \uc904\uc5c8\ub294\ub370 \uadf8\ub798\ub3c4 \ub2e4 \uc5c6\uc5b4\uc9c0\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_272.png\" alt=\"\" class=\"wp-image-2865\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_272.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_272-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_272-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>30KHz \uadfc\ucc98\uc5d0\uc11c \uc0b4\uc9dd \uaebc\uc9c0\ub294 gain\ub3c4 \uc5ec\uc804\ud788 \ubcf4\uc785\ub2c8\ub2e4. <\/p>\n\n\n\n<p>680pF \uc678\uc5d0 100pF, 2200pF\uc744 \ud14c\uc2a4\ud2b8 \ud574\ubd24\ub294\ub370 100pF\uc740 \uace0\uc5ed\uc774 \uc3d8\ub294 \uac83\uc774 \uac19\uace0 2200pF\uc740 \ub108\ubb34 \uc21c\ud55c \ub9db\uc774 \ub418\uc5b4\uc11c \ub4e3\uae30 \ud3b8\ud55c \uc18c\ub9ac\ub85c\ub294 \uc88b\uc740\ub370 PP \uc570\ud504\ub97c \ub9cc\ub4dc\ub294 \ubaa9\uc801\uc5d0 \ubd80\ud569\ud558\uc9c0\ub294 \uc54a\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uadf8\ub798\uc11c \uc77c\ub2e8 680pF\uc73c\ub85c 1\ucc28 \uc815\ucc29\ud569\ub2c8\ub2e4.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_273.png\" alt=\"\" class=\"wp-image-2866\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_273.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_273-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2023\/08\/scope_273-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>\uae30\ubd84\ub098\uc058\uac8c 3\ucc28, 5\ucc28 \ubc30\uc74c\uc774 \ub354 \ud280\uc5b4 \uc62c\ub77c\uc635\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ub9c9\uadc0\ub77c \uadf8\ub807\uaca0\uc9c0\ub9cc 5\uadf9 \uacb0\uc120\uc774 \uc18c\ub9ac\uac00 \uac70\uce60\ub2e4\ub294 \uc774\uc57c\uae30\ub294 \ub9ce\uc774 \ub4e4\uc5c8\uace0 OPT\uc5d0 UL \ud0ed\ub3c4 \uc788\uc9c0\ub9cc \uc77c\ubd80\ub7ec 5\uacb0\uc744 \ud574\ubd24\uc2b5\ub2c8\ub2e4. \uc18c\ub9ac\ub294 \uc120\uc608\ud558\uace0 \uc88b\uc740 \uac83 \uac19\uc2b5\ub2c8\ub2e4. EL34\ub294 RFT \uc911\uace0 Quad\ub97c \uc37c\uace0 12AU7\uc740 \ucc98\uc74c\uc5d0\ub294 5814A\ub97c \uc37c\ub294\ub370 12AU7 \uc911\uace0\ub85c \ubc14\uafd4\ubcf4\ub2c8 \uc18c\ub9ac\uac00 \ub354 \ub098\uc740 \ub4ef \ud569\ub2c8\ub2e4. Ringing\uc744 \ub9ce\uc774 \uc904\uc600\uc73c\ub2c8 5814A \uc18c\ub9ac\ub3c4 \ub2e4\uc2dc \ub4e4\uc5b4\ubd10\uc57c \ub418\uaca0\ub124\uc694.<\/p>\n\n\n\n<p>5\uacb0 \uad6c\uc131\uc740 425V B+, -40V fixed bias, 3.5K OPT\uc778\ub370 \uc774\uac78 UL \uacb0\uc120\uc73c\ub85c \ud558\ub824\uba74 \ub370\uc774\ud130\uc2dc\ud2b8 \ucd94\ucc9c\uac12\uc774 430V B+, 6.6K OPT, 470\uc634 self bias\ub124\uc694. 3.5K\ub85c UL \ub3d9\uc791\uc810\uc744 \uc7a1\uc744 \uc218 \uc788\uc744\uc9c0 \uba87 \ub2ec \ud6c4\uc5d0 \uad81\ub9ac\ub97c \ud55c \ubc88 \ud574\ubd10\uc57c\uc8e0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub300\uac15 \ub9c8\ubb34\ub9ac\ub41c \uac83 \uac19\uc544 \uce21\uc815\uc744 \ud574\ubd05\ub2c8\ub2e4. \ud604\uc7ac \ud68c\ub85c\ub294 \uc774\ub807\uc2b5\ub2c8\ub2e4. Gain\uc740 21.5\ubc30 \uc815\ub3c4\uc785\ub2c8\ub2e4 2Vp-p \uc774\uc0c1\uc758 ringing\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub300\uac15 30KHz \ucd08\ubc18\ub300\uc758 \ubb54\uac00\uac00 \uc788\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. 165us \uc0ac\uc774\uc5d0 \ud30c\ud615\uc774 6\uac1c \uc815\ub3c4 \uc788\uc73c\ub2c8\uae4c\uc694. \uadf8\ub7f0\ub370 FRA\ub97c \ubcf4\uba74 \uac70\uae30\uc11c \ubc1c\uc9c4\uc774 \uc544\ub2c8\uace0 1dB \uc774\uc0c1 \uaebc\uc9c0\ub294 \uac83\uc774 \ubcf4\uc785\ub2c8\ub2e4. \uc774\uac83\uc774 \uc6d0\uc778\uc740 \uc544\ub2c8\uace0 \uacb0\uacfc\uc77c \uac83 \uac19\uc740\ub370 \uc6d0\uc778\uc774 \ubb54\uc9c0 \uad81\uae08\ud558\ub124\uc694. NFB \uc800\ud56d\uc774 7.5K\ub2c8\uae4c \uacc4\uc0b0\uc744 \ud574\ubcf4\uba74 30KHz &hellip;<br \/><a href=\"https:\/\/www.kyu.kr\/?p=2859\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\"><span class=\"screen-reader-text\">EL34 PP \uce21\uc815<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":2860,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[169,170,391,403],"class_list":["post-2859","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108","tag-12au7","tag-5814a","tag-el34-pp","tag-ringing"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2859"}],"version-history":[{"count":1,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2859\/revisions"}],"predecessor-version":[{"id":2867,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2859\/revisions\/2867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/2860"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}