{"id":3598,"date":"2024-02-09T18:43:30","date_gmt":"2024-02-09T09:43:30","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=3598"},"modified":"2024-02-09T18:48:28","modified_gmt":"2024-02-09T09:48:28","slug":"kt88-%ed%8c%8c%eb%9d%bc-%ec%8b%b1%ea%b8%80-%ec%95%b0%ed%94%84","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=3598","title":{"rendered":"KT88 \ud30c\ub77c \uc2f1\uae00 \uc570\ud504"},"content":{"rendered":"\n

\uba87 \uc885\ub958\uc758 \uad00\uc744 \uc0ac\ub193\uace0 \uc548\uc4f0\uace0 \uc788\ub294 \uac83\ub4e4\uc774 \ub9ce\uc544\uc11c \uc11c\ub458\ub7ec \ud558\ub098\uc529 \ub9cc\ub4e4\uc5b4 \ubcf4\ub824\uace0 \ud569\ub2c8\ub2e4. \uace0\ub1cc\ub2d8\uaed8\uc11c \ub9c8\uc57d\uac19\uc740 \uae00\uc19c\uc528\ub85c \uc5ec\ub7ec \uc0ac\ub78c\ub4e4\uc744 \ud640\ub9ac\uc168\ub358 KT88 PSE\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uae30\ub85c \ud588\uc2b5\ub2c8\ub2e4. \uc0ac\uc2e4 \uc774\uc804\uc5d0 \ud55c \ubc88 \uc2dc\ub3c4\ud588\ub2e4\uac00 PCB\uac00 \uc548 \ub9de\uc544\uc11c \ud3ec\uae30\ud588\uc5c8\ub294\ub370 \uadf8 PCB\ub97c \uc7ac\ud65c\uc6a9\ud558\uae30\ub85c \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n

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\uc548\uc368\ubcf8 \uad00\uc744 \ub450 \uac00\uc9c0 \uac19\uc774 \uc4f0\uba74 \ubd80\ub2f4\uc774\uae34 \ud55c\ub370 \ub2e4\ud589\ud788 5A\/152M\uc758 LTspice \ubaa8\ub378\uc744 \ucc3e\uc544\uc11c \uc0ac\uc804\uc5d0 \uc880 \ub3cc\ub824\ubcf4\uba74 \uace0\uc218\ub2d8\ub4e4\ucc98\ub7fc \uc0b0\uc218\ub97c \ud574\uc11c \uc2dc\uc815\uc218\ub97c \uad6c\ud560 \uc218 \uc5c6\ub294 \uc800\ub85c\uc11c\ub294 \uc548\uc2ec\uc774 \ub9ce\uc774 \ub429\ub2c8\ub2e4. 5A\/152M 5\uadf9\uad00\ub3c4 \ubaa8 \ud68c\uc6d0\ub2d8 \ube14\ub85c\uadf8\uc5d0\uc11c \ubcf8 \uad00\uc778\ub370 C3M\ubcf4\ub2e4 \uc0b4\uc9dd \uc2a4\ud399\uc774 \uc544\ub798\uc774\uc9c0\ub9cc 6.3V \ud788\ud130\ub77c\ub294 \uc555\ub3c4\uc801 \uc7a5\uc810\uc774 \uc788\uc5b4\uc11c \uad6c\uc785\ud574\ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n

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\ucee4\ud50c\ub9c1 \ucea1\uc758 \ub4a4\uc5d0\uc11c \ucc0d\uc5b4\ubcf8 \uc2e0\ud638\uc778\ub370 1Vpp (\uc0ac\uc2e4\uc740 1.07Vpp) \uc785\ub825\uc5d0\uc11c \uc57d 76V \uc2a4\uc719\uc744 \ud558\uace0 \uc788\ub294 5\uadf9 \uc5f0\uacb0\uc785\ub2c8\ub2e4. \ubc14\uc774\uc5b4\uc2a4 \uc804\uc555 -36V\ub294 -40V \uc815\ub3c4\ub85c \ub354 \ub0ae\ucdc4\uc73c\uba74 1.3V \ub118\uc5b4\uac00\ub294 A2 \uc601\uc5ed\uc774 \ub0b4\ub824\uc640\uc11c \uc88b\uc558\uaca0\uc9c0\ub9cc \uc81c\ub108 \ub2e4\uc774\uc624\ub4dc \ub450 \uac1c \ub0a9\ub55c\uc774 \uadc0\ucc2e\uc544\uc11c \uadf8\ub0e5 \uc774\ub807\uac8c \ub450\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub0e5 1Vpp input sensitivity\ub77c\uace0 \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ubcf4\ub2c8 5A\/152M \uad00\uc740 G2\ub294 max 150V, \ud50c\ub808\uc774\ud2b8\ub294 max 250V\uc778\ub370 G2\ub294 815PP\uc6a9\uc73c\ub85c \ub9cc\ub4e4\uc5c8\ub358 LM317HV\ub97c \uc774\uc6a9\ud55c HV regulator\ub97c \ubc29\uc5f4\ud310\uc744 \ub2ec \uc218 \uc788\ub3c4\ub85d \uc218\uc815\ud588\uc2b5\ub2c8\ub2e4. \ud50c\ub808\uc774\ud2b8 \uc804\uc555\uc740 \ub354 \uc62c\ub9b4 \uc0dd\uac01\uc774\uc5c8\ub294\ub370 \uc18c\ub9ac\ub97c \ub4e4\uc5b4\ubcf4\ub2c8 \uad1c\ucc2e\uace0 R7, R12\ub97c \uc218\uc815\ud558\ub824\ub2c8 \uadc0\ucc2e\uc544\uc11c \uba70\uce60 \uadf8\ub0e5 \ub4e4\uc5b4\ubcf4\ub824\uace0 \ud569\ub2c8\ub2e4.<\/p>\n\n\n

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\uc800 \ubc29\uc5f4\ud310\uc740 \ud0a4 \ub192\uc774\uac00 3\uac00\uc9c0 \ubc84\uc804\uc774 \uc788\ub294\ub370 \uc81c\uc77c \ub0ae\uc740 \uac83\uc744 \uc368\ubd24\uace0 \uc5f4\uc774 \uadf8\ub9ac \ub9ce\uc774 \ub098\uc9c0 \uc54a\uc544\uc11c \ucda9\ubd84\ud55c \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ud68c\uc0c9 2.7\uc634 \uc800\ud56d\uc774 \uc800\ub807\uac8c \ud070 \uac83\uc744 \ubaa8\ub974\uace0 \uccab \ubc84\uc804\uc744 \ub9cc\ub4e4\uc5c8\uc5c8\ub294\ub370 \uadf8\uac83\ub3c4 \uc218\uc815\uc744 \ud588\uc2b5\ub2c8\ub2e4. \ud639\uc2dc PCB\uac00 \ud544\uc694\ud558\uc2e0 \ubd84\uc740 \uc54c\ub824\uc8fc\uc2ed\uc2dc\uc624. 15\uc7a5\uc5d0 $15.81 \ub4e4\uc5c8\uc73c\ub2c8 \ud0dd\ud3ec 7\ucc9c\uc6d0\uc5d0 \ubaa8\uc2dc\uaca0\uc2b5\ub2c8\ub2e4. ^^<\/p>\n\n\n

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\uc544\ubb34\ud2bc \uc774\ub807\uac8c \ub55c\uc744 \ud558\uace0 \ub0c5\ub2e4 410V \uc815\ub3c4\ubd80\ud130 \uc918 \ubd24\ub294\ub370 \ubc14\uc774\uc5b4\uc2a4 \uc804\ub958\uac00 \ub108\ubb34 \ud06c\uace0 \uae30\ud0c0 \ub4f1\ub4f1 \ubb38\uc81c\uac00 \uc788\uc5b4\uc11c B+ 345V\ub85c \ud0c0\ud611\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n

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NFB\ub294 \uac78\uc9c0 \uc54a\uc558\uace0 \ubb34\uc65c \ucd9c\ub825 7.6W \uc815\ub3c4 \ub429\ub2c8\ub2e4. \ud30c\ub77c\uc2f1\uae00\uc774\ub77c 140W \uc774\uc0c1 \uc804\uae30\ub97c \uba39\uc73c\uba74\uc11c \ucd9c\ub825\uc774 \ub108\ubb34 \uc791\uc8e0. \u314e<\/p>\n\n\n

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\uc544\ub798\ucabd\uc774 \ub354 \ubb49\ud22d\ud55c \uac83 \uac19\uc2b5\ub2c8\ub2e4<\/p>\n\n\n

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1W \ucd9c\ub825\uc740 350mVpp\uc5d0\uc11c \ub098\uc624\ub294\ub370 \ub178\ub780\uc0c9 \ud30c\ud615\uc758 \uc2a4\ucf00\uc77c\uc744 \ub108\ubb34 \uc904\uc5ec\ub193\uc73c\ub2c8 \ud654\uba74 \ud558\ub2e8\uc5d0 \ud45c\uc2dc\ub41c Min\/Max\uac00 \uc624\ucc28\uac00 \ub354 \ucee4\uc84c\ub124\uc694. \uc774\uc804\uc5d0\ub3c4 \ub9d0\uc500\ub4dc\ub838\uc9c0\ub9cc \ud504\ub85c\ube0c 1\uc758 Min\/Max\ub97c \uac19\uc774 \ubd10\uc57c \uc548\uc2ec\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n

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20Hz\uc640 1KHz\uac00 6dB\ub098 \ucc28\uc774\ub098\ub294 \ubaa8\uc2b5\uc778\ub370\uc694, \uc774\uac74 \ud2b8\ub79c\uc2a4 \ubb38\uc81c\ub294 \uc544\ub2c8\uace0 \ud604\uc7ac \uc2dc\uc815\uc218\uc758 \ubb38\uc81c\ub77c\uace0 \uc0dd\uac01\ud569\ub2c8\ub2e4. \uc9c0\ub09c\ubc88\uc5d0 \ubcf4\uc5ec\ub4dc\ub9b0 A2 drive 300B SE\uc758 FRA\ub294 \uc0c1\ub2f9\ud788 \uc88b\uc558\uac70\ub4e0\uc694. <\/p>\n\n\n

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\uae30\ub300\uc640\ub294 \ub2ec\ub9ac THD\uac00 \ud06c\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \ud30c\ub77c \uc2f1\uae00\uc744 \ucc98\uc74c \ub9cc\ub4e4\uc5b4\ubd24\ub294\ub370, \uc81c\uac00 \uae30\ub300\ud55c \uac83\uc740 \ub4e3\uae30 \uc88b\uc740 \uc65c\uace1\uc774 \ub9ce\uc744 \uac83\uc774\uc5c8\uac70\ub4e0\uc694. \uae30\ub300\uc640\ub294 \uc880 \ub2e4\ub974\ub124\uc694. <\/p>\n\n\n\n

\ucd5c\uadfc\uc5d0 \ubcf8 Valve wizard \uae00\uc5d0 \ubcf4\ub2c8\uae4c \ucd08\ub2e8\uc5d0 \uad73\uc774 5\uacb0\uc744 \uc4f0\ub294 \uc774\uc720\ub294 “3\uadf9\uad00\uacfc \ub2e4\ub978 \ud1a4\uc744 \ub0bc \uc218 \uc788\uc74c. \ud640\uc218\ucc28 \ubc30\uc74c\uc774 \uc880 \ub354 \ub9ce\uace0 \u2018glassy\u201d \uc0ac\uc6b4\ub4dc\uac00 \uc788\uc74c. \uc624\ubc84\ub4dc\ub77c\uc774\ube0c\ub97c \uac78\uba74 \ud3c9\uade0 \uc2a4\ud06c\ub9b0 \uc804\ub958\uac00 \ub298\uc5b4\ub098\uba74\uc11c \ucef4\ud504\ub808\uc158 \ud6a8\uacfc\uac00 \ub450\ub4dc\ub7ec\uc9c0\ub2c8\uae4c, \uc774\uac74 \ud30c\uc6cc \uc570\ud504\uc758 \ub514\uc2a4\ud1a0\uc158\uc744 \ub0ae\uc740 \ubcfc\ub968\uc73c\ub85c \uc2dc\ubbac\ub808\uc774\uc158 \ud558\uace0 \uc788\ub294 \uac83\ucc98\ub7fc \ubcf4\uc774\uae30\ub3c4 \ud568. \ub2e4\uc2dc \ub9d0\ud558\uba74 \ucd08\ub2e8\uc5d0 \uad73\uc774 5\uadf9\uad00\uc744 \uc4f4\ub2e4\uba74 \ud1a4 \ub54c\ubb38.” \uc774\ub807\uac8c \ub098\uc640 \uc788\ub358\ub370 \uc5b4\ucc28\ud53c guitar amp \uc774\uc57c\uae30\ub77c \ubcc4\ubb34 \uc0c1\uad00\uc774\uae34 \ud558\uc9c0\ub9cc \ud640\uc218\ucc28 \ubc30\uc74c\uc774 \ub9ce\uc544 \ubcf4\uc774\uc9c0\ub3c4 \uc54a\uae34 \ud569\ub2c8\ub2e4.<\/p>\n\n\n

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\uc774 \uac80\uc740 PCB\uc5d0 KT88\uc744 \ub098\ub780\ud788 4\uac1c \uc7a5\ucc29\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n

\n
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KT88\uc740 \ubc30\ub458\ub808\ud584\uc774 \ub9ce\uc544\uc11c \ud55c \uce78\uc744 \uac74\ub108 \ub6f0\uc5b4\uc57c \ud569\ub2c8\ub2e4<\/p>\n\n\n

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5A\/152M\uc740 \ub85d\ud0c8 \uc18c\ucf13\uc778 \uac83\ub9cc \ube7c\uba74 \uad1c\ucc2e\uc740 \uad00\uc774\uc9c0 \uc54a\uc744\uae4c \uc2f6\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\uba87 \uc885\ub958\uc758 \uad00\uc744 \uc0ac\ub193\uace0 \uc548\uc4f0\uace0 \uc788\ub294 \uac83\ub4e4\uc774 \ub9ce\uc544\uc11c \uc11c\ub458\ub7ec \ud558\ub098\uc529 \ub9cc\ub4e4\uc5b4 \ubcf4\ub824\uace0 \ud569\ub2c8\ub2e4. \uace0\ub1cc\ub2d8\uaed8\uc11c \ub9c8\uc57d\uac19\uc740 \uae00\uc19c\uc528\ub85c \uc5ec\ub7ec \uc0ac\ub78c\ub4e4\uc744 \ud640\ub9ac\uc168\ub358 KT88 PSE\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uae30\ub85c \ud588\uc2b5\ub2c8\ub2e4. \uc0ac\uc2e4 \uc774\uc804\uc5d0 \ud55c \ubc88 \uc2dc\ub3c4\ud588\ub2e4\uac00 PCB\uac00 \uc548 \ub9de\uc544\uc11c \ud3ec\uae30\ud588\uc5c8\ub294\ub370 \uadf8 PCB\ub97c \uc7ac\ud65c\uc6a9\ud558\uae30\ub85c \ud588\uc2b5\ub2c8\ub2e4. \uc548\uc368\ubcf8 \uad00\uc744 \ub450 \uac00\uc9c0 \uac19\uc774 \uc4f0\uba74 \ubd80\ub2f4\uc774\uae34 \ud55c\ub370 \ub2e4\ud589\ud788 5A\/152M\uc758 LTspice \ubaa8\ub378\uc744 \ucc3e\uc544\uc11c \uc0ac\uc804\uc5d0 \uc880 \ub3cc\ub824\ubcf4\uba74 \uace0\uc218\ub2d8\ub4e4\ucc98\ub7fc \uc0b0\uc218\ub97c …
KT88 \ud30c\ub77c \uc2f1\uae00 \uc570\ud504<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":3599,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[495,404,434,494],"class_list":["post-3598","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108","tag-5a-152m","tag-kt88","tag-para-se","tag-494"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/3598","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=3598"}],"version-history":[{"count":2,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/3598\/revisions"}],"predecessor-version":[{"id":3615,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/3598\/revisions\/3615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/3599"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}