{"id":6939,"date":"2017-12-02T17:21:33","date_gmt":"2017-12-02T17:21:33","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=6939"},"modified":"2018-10-06T12:58:11","modified_gmt":"2018-10-06T11:58:11","slug":"4p1l-4%d0%bf1%d0%bb-siberian-gen4-in-screen-mode-part-2","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2017\/12\/02\/4p1l-4%d0%bf1%d0%bb-siberian-gen4-in-screen-mode-part-2\/","title":{"rendered":"4P1L \/ 4\u041f1\u041b Siberian Gen4 in Screen mode (part 2)"},"content":{"rendered":"

Last time<\/a> I wrote about the 4P1L in screen mode. It was great to see some DIYAudio member (Blitz) to post about his work on the 4P1L with screen as anode. I call it screen mode but probably is incorrect.<\/p>\n

His post about G3 structure remind me to post this, I have tested it but never blogged about it. Yes having G3 as part of the anode structure will increase conductance and will form a nice “mesh” anode. Here it is how I implemented:<\/p>\n

\"\"<\/a><\/p>\n

The pin 4 (G3) is now connected to 3 (G2) to form the anode. I reduced the anode voltage down to 110V to get 10mA. It could be increased, sure within the Pd limits.<\/p>\n

The response is very good:<\/p>\n

\"\"<\/a><\/p>\n

Here you have the distortion at 1kHz:<\/p>\n

\"\"<\/a><\/p>\n

How does it sound?<\/h3>\n

Well, I wrote about it before. The 4P1L is one of my favourite valves. In this mode it sounds great, with a particular clear detail in the treble. I like this valve and will play it for some time to get further impressions.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Last time I wrote about the 4P1L in screen mode. It was great to see some DIYAudio member (Blitz) to post about his work on the 4P1L with screen as anode. I call it screen mode but probably is incorrect. His post about G3 structure remind me to post this, I have tested it but … Continue reading “4P1L \/ 4\u041f1\u041b Siberian Gen4 in Screen mode (part 2)”<\/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":[5],"tags":[782,112,1081,864,44,1082],"class_list":["post-6939","post","type-post","status-publish","format-standard","hentry","category-valves","tag-4p1l","tag-4p1l-dht-pre-amp","tag-4p1l-screen-mode","tag-bartola-gyrator","tag-gyrator","tag-screen-as-anode"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-1NV","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/6939","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=6939"}],"version-history":[{"count":2,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/6939\/revisions"}],"predecessor-version":[{"id":7639,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/6939\/revisions\/7639"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=6939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=6939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=6939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}