{"id":404,"date":"2012-07-07T19:46:21","date_gmt":"2012-07-07T19:46:21","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=404"},"modified":"2012-07-07T19:46:21","modified_gmt":"2012-07-07T19:46:21","slug":"vt-25-10-y-triode-curves","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2012\/07\/07\/vt-25-10-y-triode-curves\/","title":{"rendered":"VT-25 \/ 10-Y triode curves"},"content":{"rendered":"<figure id=\"attachment_405\" aria-describedby=\"caption-attachment-405\" style=\"width: 640px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"405\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2012\/07\/07\/vt-25-10-y-triode-curves\/vt25curves\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?fit=640%2C516&amp;ssl=1\" data-orig-size=\"640,516\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"VT25curves\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;VT-25 triode curves&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?fit=640%2C516&amp;ssl=1\" class=\"size-full wp-image-405\" title=\"\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?resize=640%2C516\" alt=\"\" width=\"640\" height=\"516\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?resize=300%2C241&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT25curves.jpg?resize=372%2C300&amp;ssl=1 372w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-405\" class=\"wp-caption-text\">VT-25 triode curves\u00a0<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"406\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2012\/07\/07\/vt-25-10-y-triode-curves\/img_3033\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg?fit=359%2C640&amp;ssl=1\" data-orig-size=\"359,640\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"IMG_3033\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg?fit=359%2C640&amp;ssl=1\" class=\"alignleft  wp-image-406\" title=\"IMG_3033\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg?resize=215%2C384\" alt=\"\" width=\"215\" height=\"384\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg?w=359&amp;ssl=1 359w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/IMG_3033.jpg?resize=168%2C300&amp;ssl=1 168w\" sizes=\"auto, (max-width: 215px) 85vw, 215px\" \/><\/a><\/p>\n<p>Everyone loves this thoriated-tungsten DHT valve. I&#8217;ve only used it in a preamp and was hooked with its sound. Really warm and nice. Downside is, it&#8217;s very pricey these days and also is quite demanding from a filament perspective. \u00a0You can check the characteristics\u00a0<a href=\"http:\/\/www.mif.pg.gda.pl\/homepages\/frank\/sheets\/021\/1\/10.pdf\">here<\/a>.<\/p>\n<p>For those who like testing their designs with LT SPICE, I produced a model which matches really well the traced curves. Would like anyone to use this one, to drop me a note with any feedback \ud83d\ude42<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_407\" aria-describedby=\"caption-attachment-407\" style=\"width: 839px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"407\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2012\/07\/07\/vt-25-10-y-triode-curves\/rca10y-vt25-spice-model\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?fit=839%2C549&amp;ssl=1\" data-orig-size=\"839,549\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"RCA10Y VT25 spice model\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;RCA10Y VT25 spice model&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?fit=839%2C549&amp;ssl=1\" class=\"size-full wp-image-407\" title=\"RCA10Y VT25 spice model\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?resize=839%2C549\" alt=\"\" width=\"839\" height=\"549\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?w=839&amp;ssl=1 839w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?resize=300%2C196&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/RCA10Y-VT25-spice-model.png?resize=458%2C300&amp;ssl=1 458w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-407\" class=\"wp-caption-text\">RCA10Y VT25 spice model<\/figcaption><\/figure>\n<p>Here is the <a href=\"http:\/\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2012\/07\/VT-25-spice-model.txt\">VT-25 spice model<\/a>. Let me know how it works for you!<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; &nbsp; Everyone loves this thoriated-tungsten DHT valve. I&#8217;ve only used it in a preamp and was hooked with its sound. Really warm and nice. Downside is, it&#8217;s very pricey these days and also is quite demanding from a filament perspective. \u00a0You can check the characteristics\u00a0here. For those who like testing their designs with &hellip; <a href=\"https:\/\/www.bartola.co.uk\/valves\/2012\/07\/07\/vt-25-10-y-triode-curves\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;VT-25 \/ 10-Y triode curves&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[24,38,5],"tags":[119,120,783,122,6,25,42,781,39,7,118,121],"class_list":["post-404","post","type-post","status-publish","format-standard","hentry","category-valve-curve-tracer","category-valve-tester","category-valves","tag-119","tag-10-triode","tag-10y","tag-10y-spice-model","tag-dht","tag-tube-curve-tracer","tag-tube-tester","tag-valve-curve-tracer","tag-valve-tester-2","tag-valves-2","tag-vt-25","tag-vt-25-spice-model"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-6w","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/comments?post=404"}],"version-history":[{"count":1,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/404\/revisions"}],"predecessor-version":[{"id":409,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/404\/revisions\/409"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}