{"id":2024,"date":"2022-10-09T22:15:09","date_gmt":"2022-10-09T13:15:09","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=2024"},"modified":"2022-10-09T22:20:15","modified_gmt":"2022-10-09T13:20:15","slug":"%ec%98%a4%eb%94%94%ec%98%a4%eb%a5%bc-%ec%9c%84%ed%95%9c-%ec%a0%80%ed%95%ad-%ec%a7%80%ec%8b%9d","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=2024","title":{"rendered":"\uc624\ub514\uc624\ub97c \uc704\ud55c \uc800\ud56d \uc9c0\uc2dd"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\ucd9c\ucc98: Designing High-Fidelity Tube Preampls (Merlin Blencowe)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>E \uc2dc\ub9ac\uc988<\/strong><\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\uc800\ud56d\uac12\uc740 \uc120\ud638\ub418\ub294 \uac12\ub4e4\uc744 \uc704\uc8fc\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\ub294\ub370 \uc774 \ud45c\uc900\uc744 E \uc2dc\ub9ac\uc988\ub77c\uace0 \ud568. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E \uc2dc\ub9ac\uc988\uc5d0\ub294 E6\ubd80\ud130 E192\uae4c\uc9c0 \uc788\uc74c. E12\ub97c \uc608\ub85c \ub4e4\uba74 decade (\uc608\ub97c \ub4e4\uba74 10\ubd80\ud130\uc758 decade\ub294 100\uae4c\uc9c0\uc784) \ud558\ub098\uc5d0 \ub300\ud574\uc11c \uc544\ub798\uc640 \uac19\uc774 \ub85c\uadf8 \uac04\uaca9\uc774 \uc77c\uc815\ud558\uac8c 12\uac1c\ub97c \ub298\uc5b4 \ub193\uc740 \uac83\uc784.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">10 &#8211; 12 &#8211; 15 &#8211; 18 &#8211; 22 &#8211; 27 &#8211; 33 &#8211; 39 &#8211; 47 &#8211; 56 &#8211; 68 &#8211; 82<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc61b\ub0a0\uc5d0\ub294 E \uac12\uc774 \uac70\uce58\uba74 \uac12\uc774 \ube44\uc30c\ub294\ub370 \uc774\uc81c\ub294 E24\ub3c4 \uc548 \ube44\uc308<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \ud5c8\uc6a9 \uc624\ucc28 (Tolerance)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ube48\ud2f0\uc9c0 \uc800\ud56d\uc740 10% \uc624\ucc28\ub3c4 \uc608\uc0ac\ub85c \ubc1c\uc0dd\ud558\uace4 \ud568. \uc694\uc998\uc740 1\/2W \uc6a9\ub7c9\uc5d0 \ub300\ud574\uc11c\ub294 1% \uc800\ud56d\uc774 \uc77c\uc885\uc758 \ud45c\uc900\uc784.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. \uc804\ub825 \uc815\uaca9 (Power Rating)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc628\uc5d0\uc11c (&lt; 70&#8217;C) \uacc4\uc18d\ud574\uc11c \ubc1c\uc0b0\uc2dc\ud0ac \uc218 \uc788\ub294 \uc804\ub825 \uc2a4\ud399. \ube44\uc2fc\uac74 \ud384\uc2a4 \uc0c1\ud0dc, \uc21c\uac04 \uc2a4\ud30c\uc774\ud06c\uc5d0 \ub300\ud55c \uc2a4\ud399\ub3c4 \uc368\ub193\uc74c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. \uc804\uc555 \uc815\uaca9 (Voltage Rating)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud544\ub984\uc800\ud56d\uc758 \uacbd\uc6b0 \ub300\uac15 \uc544\ub798\uc640 \uac19\ub2e4\uace0 \uac00\uc815\ud574\ub3c4 \ud06c\uac8c \ud2c0\ub9ac\uc9c0 \uc54a\uc74c. \ubb3c\ub860 \uc815\ud655\ud55c \uac12\uc740 \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">1\/8 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">200V<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1\/4 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">200V<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1\/2 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">350V<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1 W<\/td><td class=\"has-text-align-center\" data-align=\"center\">500V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Excess Noise<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4\uc5d0 \uc758\ud55c \ub178\uc774\uc988 \uc678\uc5d0 \uc800\ud56d \uc7ac\uc9c8\uc758 \uc804\ub3c4\uc131\uc774 \uc694\ub3d9\uce58\ub294 \uac83\uc5d0 \uc758\ud574 excess noise\ub77c\ub294 \uac83\ub3c4 \uc0dd\uae40. \uc774\uac83\uc740 1\/f, \uc989 \uc8fc\ud30c\uc218\uc5d0 \ubc18\ube44\ub840\ud568.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \uc804\ub958\ub294 \uc800\ud56d \uc591\ub2e8\uac04 \uc804\uc555\uc5d0 \ube44\ub840\ud558\ubbc0\ub85c excess noise\ub294 \ub300\uac1c noise index\ub77c\ub294 \uac83\uc73c\ub85c \ud45c\ud604\ud568. (uV\/V\/decade)<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">\uc800\ud56d \ud0c0\uc785<\/td><td class=\"has-text-align-center\" data-align=\"center\">Excess Noise (uV\/V\/decade)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uad8c\uc120<\/td><td class=\"has-text-align-center\" data-align=\"center\">~0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uba54\ud0c8 \ud544\ub984<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.01 &#8211; 0.3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uba54\ud0c8 \uc625\uc0ac\uc774\ub4dc<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.1 &#8211; 1.0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uce74\ubcf8 \ud544\ub984<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.01 &#8211; 0.4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uce74\ubcf8<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.1 &#8211; &gt; 1.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>6. \uae30\uc0dd \uc131\ubd84<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc140\ud504 \uc778\ub355\ud134\uc2a4\uc640 \uc158\ud2b8 \uce90\ud328\uc2dc\ud134\uc2a4\uac00 \uc788\uae30 \ub9c8\ub828\uc784. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1W \ubbf8\ub9cc\uc758 \uc800\ud56d\uc5d0\uc11c \uc778\ub355\ud134\uc2a4\ub294 \uba87 \ub098\ub178 H\uc774\uc9c0\ub9cc W\uac00 \ucee4\uc9c0\uba74 \uba87\uc2ed \ub098\ub178 H\uac00 \ub428. \uad8c\uc120 \uc800\ud56d\uc740 uH \ub2e8\uc704. \uadf8\ub7ec\ub098 \uc774 \uc778\ub355\ud134\uc2a4\ub294 \ub77c\ub514\uc624 \uc8fc\ud30c\uc218 \uc601\uc5ed\uc5d0\uc11c\ub9cc \ubb38\uc81c\uac00 \ub428. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc158\ud2b8 \uce90\ud328\uc2dc\ud134\uc2a4\ub3c4 \ubb34\uc2dc\ud558\uba74 \ub418\ub294\ub370 \uad8c\uc120 \uc800\ud56d\uc740 \uc218 pF\uc774 \ub418\uae30 \ub54c\ubb38\uc5d0 \uc870\uc2ec\ud560 \ud544\uc694 \uc788\uc74c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>7. \uc800\ud56d \uc885\ub958<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\uba54\ud0c8 \ud544\ub984 <ul><li>\uac00\uc7a5 \ud754\ud568. \uc624\ub514\uc624\uc5d0 \uc8fc\ub85c \uc4f0\uba74 \ub428<\/li><li>\ub300\uac1c blue\/purple \uc0c9\uc73c\ub85c \ucf54\ud305\ub428<\/li><li>\uce74\ubcf8 \ud544\ub984\uacfc \uac00\uaca9 \ucc28\uc774\uac00 \uc5c6\uc5b4\uc84c\uace0 \ub354 \uc548\uc815\uc801\uc784<\/li><li>\ubcf8\uc9c8\uc801\uc73c\ub85c \uc65c\uace1\uc774 \uc5c6\uc74c<\/li><\/ul><\/li><li>\uba54\ud0c8 \uc625\uc0ac\uc774\ub4dc<ul><li>\uba54\ud0c8 \ud544\ub984 \uc911\uc758 \ud558\ub098<\/li><li>1W \uc774\uc0c1\uc758 \uc815\uaca9\uc744 \ub9cc\ub4e4\uae30 \uc704\ud574 \uc0ac\uc6a9\ub428<\/li><li>\uba54\ud0c8 \ud544\ub984\ubcf4\ub2e4 \ub178\uc774\uc988, \uc65c\uace1, \uc628\ub3c4\uc601\ud5a5\uc5d0\uc11c \ub2e4 \ub098\uc068<\/li><li>\uc624\ub514\uc624\uc758 \uc2e0\ud638\ubd80\uc5d0\ub294 \uc0ac\uc6a9\ud558\uc9c0 \ub9d0\uace0 \uc804\uc6d0\ubd80\uc5d0\ub098 \uc4f8 \uac83<\/li><\/ul><\/li><li>\uce74\ubcf8 \ud544\ub984<ul><li>\uacfc\uac70\uc5d0 \uac00\uc7a5 \uc77c\ubc18\uc801\uc774\uc5c8\ub358 \uc800\ud56d \uc885\ub958. \uc774\uc820 \uba54\ud0c8 \ud544\ub984<\/li><li>\ubca0\uc774\uc9c0, \uac08\uc0c9\uc73c\ub85c \uc8fc\ub85c \ucf54\ud305\ub428<\/li><li>\uc628\ub3c4 \ud2b9\uc131\uc740 \uba54\ud0c8\ud544\ub984\ubcf4\ub2e4 \ub098\uc058\uace0 excess noise\ub294 \ube44\uc2b7<\/li><li>\uc65c\uace1\uc744 \ub9cc\ub4dc\ub294 \uac83\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uace0 \ub0ae\uc740 \uc8fc\ud30c\uc218 \ub300\uc5ed\uc5d0\uc11c\ub294 \uc65c\uace1\uc774 \uc99d\uac00\ud568. 1\/8 W\ub294 3rd harmonic\uc744 \ub9cc\ub4ec<\/li><li>\ubabd\ub545 \uce74\ubcf8 \ud544\ub984\uc73c\ub85c \ub3c4\ubc30\ub97c \ud558\uba74 \uc774 \uc791\uc740 \ud558\ubaa8\ub2c9\uc774 \ubaa8\uc5ec\uc11c \uc18c\ub9ac\uac00 \ub530\ub73b\ud574\uc9c0\ub294 \ud6a8\uacfc\uac00 \uc0dd\uae38 \uc218\ub3c4 \uc788\uc74c<\/li><\/ul><\/li><li>\uce74\ubcf8 (Carbon composition)<ul><li>\ube48\ud2f0\uc9c0 \uae30\uae30\uc5d0\uc11c \ubc1c\uacac\ub418\ub294 \uc800\ud56d. \uc77c\uba85 \ubc8c\ud06c \uc800\ud56d<\/li><li>\uc628\ub3c4 \ud2b9\uc131\uc740 \uc2ec\uac01\ud568. \ub370\uc774\ud130\uc2dc\ud2b8\uc5d0 \uc548 \uc4f0\uc5ec\uc838 \uc788\uc744 \uc815\ub3c4<\/li><li>\ube48\ud2f0\uc9c0 \uc570\ud504\uc5d0 \uc0ac\uc6a9\ub41c \uc800\ud56d\uc740 \uc2ec\ud558\uac8c \uc218\uce58\uac00 \ud2c0\uc5b4\uc838 \uc788\uc744 \uc218\ub3c4 \uc788\uc74c<\/li><li>\uac00\uc7a5 \ub178\uc774\uc988\ub97c \ub9ce\uc774 \ub9cc\ub4dc\ub294 \uc800\ud56d\uc774\uace0 \ube48\ud2f0\uc9c0 \uc570\ud504\uc5d0\uc11c \ub098\ub294 \ud0c1\ud0c1\ud558\ub294 \uc7a1\uc74c, \ud31d\ucf58 \ud130\uc9c0\ub294 \uc7a1\uc74c\uc758 \uc6d0\uc778\uc784<\/li><li>\ud640\uc218\ubc88 \ud558\ubaa8\ub2c9\uc744 0.01% \uc774\uc0c1 \ub9cc\ub4e4\uc5b4\ub0c4<\/li><\/ul><\/li><li>\uad8c\uc120 (Wirewound)<ul><li>3W \uc774\uc0c1\uc744 \uc27d\uac8c \ub9cc\ub4e4 \uc218 \uc788\uc74c<\/li><li>\uc6a9\ub7c9\uc774 \uc791\uc740 \uac83\uc740 \uc77c\ubc18\uc800\ud56d\ucc98\ub7fc \ubcf4\uc774\uac8c \ub9cc\ub4e4\uae30\ub3c4 \ud558\ub098, \uc6a9\ub7c9\uc774 \ud070 \uac83\ub4e4\uc740 \uae08\uc18d \uc0c1\uc790\uc5d0 \ub123\uc5b4\uc11c \uc0e4\uc2dc\uc5d0 \ubcfc\ud2b8\ub85c \uace0\uc815\ud558\ub3c4\ub85d \ub9cc\ub4ec<\/li><li>\ub2e4\uc591\ud55c \uc800\ud56d\uac12\uc744 \ub0b4\ub193\uc9c0 \uc54a\uc74c. \uc77c\ubc18\uc801\uc73c\ub85c E6 \uc2dc\ub9ac\uc988\ub85c \ub098\uc624\uace0 100K ohm \uc774\uc0c1\uc740 \uc798 \uc5c6\uc74c<\/li><li>\ucf54\uc77c\uc744 \uac10\uc544\uc11c \ub9cc\ub4e4\uae30 \ub54c\ubb38\uc5d0 uH \ub2e8\uc704\uc758 \uc778\ub355\ud134\uc2a4\ub97c \uac00\uc9c0\uc9c0\ub9cc \uc570\ud504\uc5d0\uc11c \ubb38\uc81c \uc548\ub428<\/li><li>\uc624\ud788\ub824 \uc158\ud2b8 \uce90\ud328\uc2dc\ud134\uc2a4\uac00 10pF\uae4c\uc9c0\ub3c4 \ub098\uc624\ub294 \uac83\uc774 \ubb38\uc81c\uc784<\/li><\/ul><\/li><li>\ud4e8\uc988\uc800\ud56d (Fusible \/ Flameproof)<ul><li>\uc815\uaca9 \ud30c\uc6cc\ubcf4\ub2e4 \uc218 \ubc30 \ud070 \uc0c1\ud669\uc744 \ub9cc\ub098\uba74 \ub2e8\uc120\uc774 \ub418\ub294 \uc800\ud56d<\/li><li>\ubd88\uaf43\uc1fc\ub97c \ub9cc\ub4e4\uc9c0 \uc54a\uac8c \ud574\uc900\ub2e4\uace0 \ud574\uc11c Flameproof\ub77c\uace0\ub3c4 \ubd80\ub984<\/li><li>\uc77c\ubc18 \ud4e8\uc988\ub294 \uc218\uc2ed A\uc758 \uc804\ub958\ub97c \ub9cc\ub098\uc57c \ub04a\uc5b4\uc9c0\ubbc0\ub85c \uc804\ub958 \uc81c\ud55c \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ub418\uae30\ub3c4 \ud568<\/li><\/ul><\/li><li>\uac00\ubcc0\uc800\ud56d (Potentiometer)<ul><li>pot\uc774\ub77c\uace0\ub3c4 \ud568<\/li><li>\ud5c8\uc6a9 \uc624\ucc28\uac00 \ub9e4\uc6b0 \ud07c (10~20%)<\/li><li>\uc720\ub7fd\uc5d0\uc11c\ub294 10\/22\/47\ub85c \uc2dc\uc791\ud558\ub294 \uac83\ub4e4\uc744 \ub9cc\ub4e4\uace0 \ubbf8\uad6d\uc5d0\uc11c\ub294 10\/25\/50\uc73c\ub85c \uc2dc\uc791\ud558\ub294 \uac83\ub4e4\uc744 \ub9cc\ub4ec (\uc608. 100Kohm). \uadf8\ub7f0\ub370 \ud5c8\uc6a9 \uc624\ucc28\uac00 \uc6cc\ub099 \ucee4\uc11c \uadf8 \ub188\uc774 \uadf8 \ub188\uc784<\/li><li>Taper \uc885\ub958<ul><li>\ub9ac\ub2c8\uc5b4 (Linear taper) : \ubcfc\ub968\uc744 \ub3cc\ub9ac\ub294 \uac01\ub3c4\uc5d0 \ube44\ub840\ud574\uc11c \uc120\ud615\uc73c\ub85c \uc800\ud56d \uc99d\uac00. B \uace1\uc120\uc774\ub77c\uace0 \ubd80\ub984<\/li><li>\ub85c\uadf8 (Logarithmic taper) : \uc624\ub514\uc624 \ud14c\uc774\ud37c\ub77c\uace0\ub3c4 \ubd80\ub984. \uc800\ud56d\uc774 \ub85c\uadf8 \uace1\uc120\uacfc \ube44\uc2b7\ud558\uac8c \uc99d\uac00\ud568. A \uace1\uc120\uc774\ub77c\uace0 \ubd80\ub984. <ul><li>\uadf8\ub7ec\ub098 \uc815\ud655\ud558\uac8c \ub85c\uadf8 \uace1\uc120\uc740 \uc544\ub2c8\uace0 \uc5ec\uae30\ub3c4 \ubcc0\uc885\uc774 \uc788\uc74c.<\/li><li>\uc774\ub7f0 \uace1\uc120\uc744 \uc4f0\ub294 \uc774\uc720\ub294 \uc774\uac8c \uc0ac\ub78c \uadc0\uc640 \uc798 \ub9de\uae30 \ub54c\ubb38\uc784.<\/li><\/ul><\/li><li>\ub9ac\ubc84\uc2a4 (Reverse): C \uace1\uc120\uc73c\ub85c anti-log \uace1\uc120\uc778\ub370 \uc798 \uc548\uc500<\/li><\/ul><\/li><li>\ub189 (knob) \ud615\ud0dc\uc640 \uc2a4\ud06c\ub8e8\ub4dc\ub77c\uc774\ubc84\ub85c \ub3cc\ub9ac\ub294 trimpot \ud615\ud0dc\uac00 \uc788\uc74c. \ub458 \ub2e4 \ud55c \ubc14\ud034\ub9cc \ub3c4\ub294 \ub188, \uc5ec\ub7ec \ubc14\ud034 \ub3c4\ub294 \ub188\uc774 \uc788\uc74c. \ubb3c\ub860 \ubbf9\uc2f1 \ucf58\uc194\uc5d0\uc11c \uc4f0\ub294 \uc9c1\uc120 \ud615\ud0dc\ub3c4 \uc788\uc74c.<\/li><li>\uc800\ud56d \uc131\ubd84\uc744 \ud2b8\ub799 \ud615\ud0dc\ub85c \ub9cc\ub4dc\ub294\ub370<ul><li>\uce74\ubcf8 \ud2b8\ub799: \uac00\uc7a5 \ud754\ud558\uace0 1\/2 W \uc815\uaca9\uc73c\ub85c \ubcf4\uba74 \ub428. \uc628\ub3c4 \ud2b9\uc131\uc774 \uc548 \uc88b\uc74c<\/li><li>Cermet \ud2b8\ub799 (Ceramic-metal composite) : \uc804\ub3c4\uc131 \ud50c\ub77c\uc2a4\ud2f1\uc73c\ub85c \ubcf4\uba74 \ub428. 2W \uc815\uaca9\uae4c\uc9c0\ub3c4 \uac00\uc9c8 \uc218 \uc788\uace0, \uce74\ubcf8 \ud2b8\ub799\ubcf4\ub2e4 \ud6e8\uc52c \ud2b9\uc131\uc774 \uc88b\uc74c<\/li><li>\uad8c\uc120 \ud2b8\ub799: \ub354 \ud070 \uc804\ub825 \uc815\uaca9\uc774 \ud544\uc694\ud558\uba74 \uad8c\uc120 \uc800\ud56d \ud615\ud0dc\ub97c \uc0ac\uc6a9\ud568. \ub300\uac1c Rheostats\ub77c\uace0 \ubd80\ub984.<\/li><\/ul><\/li><\/ul><\/li><\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"639\" height=\"610\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/10\/\ud654\uba74_\ucea1\ucc98_2022-05-17_210125.png\" alt=\"\" class=\"wp-image-2025\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/10\/\ud654\uba74_\ucea1\ucc98_2022-05-17_210125.png 639w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/10\/\ud654\uba74_\ucea1\ucc98_2022-05-17_210125-150x143.png 150w\" sizes=\"auto, (max-width: 639px) 100vw, 639px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucd9c\ucc98: Designing High-Fidelity Tube Preampls (Merlin Blencowe) E \uc2dc\ub9ac\uc988 \uc800\ud56d\uac12\uc740 \uc120\ud638\ub418\ub294 \uac12\ub4e4\uc744 \uc704\uc8fc\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\ub294\ub370 \uc774 \ud45c\uc900\uc744 E \uc2dc\ub9ac\uc988\ub77c\uace0 \ud568. E \uc2dc\ub9ac\uc988\uc5d0\ub294 E6\ubd80\ud130 E192\uae4c\uc9c0 \uc788\uc74c. E12\ub97c \uc608\ub85c \ub4e4\uba74 decade (\uc608\ub97c \ub4e4\uba74 10\ubd80\ud130\uc758 decade\ub294 100\uae4c\uc9c0\uc784) \ud558\ub098\uc5d0 \ub300\ud574\uc11c \uc544\ub798\uc640 \uac19\uc774 \ub85c\uadf8 \uac04\uaca9\uc774 \uc77c\uc815\ud558\uac8c 12\uac1c\ub97c \ub298\uc5b4 \ub193\uc740 \uac83\uc784. 10 &#8211; 12 &#8211; 15 &#8211; 18 &#8211; 22 &#8211; 27 &hellip;<br \/><a href=\"https:\/\/www.kyu.kr\/?p=2024\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\"><span class=\"screen-reader-text\">\uc624\ub514\uc624\ub97c \uc704\ud55c \uc800\ud56d \uc9c0\uc2dd<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":2025,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-2024","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2024","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=2024"}],"version-history":[{"count":3,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2024\/revisions"}],"predecessor-version":[{"id":2028,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2024\/revisions\/2028"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/2025"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}