{"id":3502,"date":"2014-06-14T18:38:54","date_gmt":"2014-06-14T17:38:54","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=3502"},"modified":"2014-07-28T08:41:00","modified_gmt":"2014-07-28T07:41:00","slug":"6%d1%8d6%d0%bf-%d0%b4%d1%80-driver-tests","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2014\/06\/14\/6%d1%8d6%d0%bf-%d0%b4%d1%80-driver-tests\/","title":{"rendered":"6\u042d6\u041f-\u0414\u0420 driver tests"},"content":{"rendered":"<p>Here is a quick test I did today that the <a title=\"6\u042d6\u041f-E and 6\u042d6\u041f-\u0414\u0420 datasheets\" href=\"http:\/\/www.bartola.co.uk\/valves\/2013\/02\/19\/6%d1%8d6%d0%bf-e-6%d1%8d6%d0%bf-%d0%b4%d1%80-datasheets\/\">6e6p-dr<\/a> is a promising valve as a driver. I&#8217;ve used 6e5p and made several tests with these fantastic valves. Anyway, looking at a single sample from my stock:<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3503\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2014\/06\/14\/6%d1%8d6%d0%bf-%d0%b4%d1%80-driver-tests\/6e6p-dr-performance\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?fit=835%2C679&amp;ssl=1\" data-orig-size=\"835,679\" 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=\"6e6p-dr performance\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?fit=835%2C679&amp;ssl=1\" class=\"alignleft size-full wp-image-3503\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?resize=835%2C679\" alt=\"6e6p-dr performance\" width=\"835\" height=\"679\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?w=835&amp;ssl=1 835w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?resize=300%2C243&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-performance.png?resize=368%2C300&amp;ssl=1 368w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/a>The 6e6p-dr can do well and provide a nice 0.17% @ 200Vpp. Not many valves can do this in triode-mode.<\/p>\n<p>Now, let&#8217;s look at the harmonic composition:<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3504\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2014\/06\/14\/6%d1%8d6%d0%bf-%d0%b4%d1%80-driver-tests\/6e6p-dr-harmonics\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?fit=1140%2C809&amp;ssl=1\" data-orig-size=\"1140,809\" 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=\"6e6p-dr harmonics\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?fit=840%2C596&amp;ssl=1\" class=\"alignleft size-large wp-image-3504\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics-1024x726.png?resize=584%2C414\" alt=\"6e6p-dr harmonics\" width=\"584\" height=\"414\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?resize=1024%2C726&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?resize=300%2C212&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?resize=422%2C300&amp;ssl=1 422w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2014\/06\/6e6p-dr-harmonics.png?w=1140&amp;ssl=1 1140w\" sizes=\"auto, (max-width: 584px) 85vw, 584px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><span style=\"text-decoration: underline;\"><strong>Edit (28th July 2014)<\/strong><\/span>: The harmonics should be read: K1=H2, K2=H3, K3=H4 and so on.<\/p><\/blockquote>\n<p>Harmonic level is very low and dominated by H2 with raising H4 above 120-130Vpp. An interesting dip takes place in H3 closer to maximum swing level. This may be due to CCS FET load interaction and harmonic cancellation I guess. Beyond 205Vpp my CCS is limited by its HT supply. It can\u00a0be boosted, but for a quick test, here is were it ends \ud83d\ude42<\/p>\n<p>This will be another valve to try as a driver in my next 300B project.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here is a quick test I did today that the 6e6p-dr is a promising valve as a driver. I&#8217;ve used 6e5p and made several tests with these fantastic valves. Anyway, looking at a single sample from my stock: The 6e6p-dr can do well and provide a nice 0.17% @ 200Vpp. Not many valves can do &hellip; <a href=\"https:\/\/www.bartola.co.uk\/valves\/2014\/06\/14\/6%d1%8d6%d0%bf-%d0%b4%d1%80-driver-tests\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;6\u042d6\u041f-\u0414\u0420 driver tests&#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_post_was_ever_published":false,"_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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[67,5],"tags":[610,609,606,605,608,607],"class_list":["post-3502","post","type-post","status-publish","format-standard","hentry","category-thd","category-valves","tag-300b","tag-300b-driver","tag-6e6p","tag-6e6p-dr","tag-6e6p-dr-thd","tag-6e6p-dr-triode"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-Uu","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3502","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=3502"}],"version-history":[{"count":5,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3502\/revisions"}],"predecessor-version":[{"id":3639,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3502\/revisions\/3639"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=3502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=3502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=3502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}