{"id":3551,"date":"2014-07-01T20:46:06","date_gmt":"2014-07-01T19:46:06","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=3551"},"modified":"2014-07-01T20:46:06","modified_gmt":"2014-07-01T19:46:06","slug":"4p1l-schade-feedback-robustiano-amplifier","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2014\/07\/01\/4p1l-schade-feedback-robustiano-amplifier\/","title":{"rendered":"4P1L Schade Feedback: “Robustiano” Amplifier"},"content":{"rendered":"

 <\/p>\n

Quick breadboard this evening after watching the world cup match.\u00a0
\n\"Robustiano<\/a><\/p>\n

 <\/p>\n

Increased screen voltage to 160V and dialed the feedback resistor to achieve minimum distortion without jumping back to 100% pentode mode.<\/p>\n

Nice to see 2W at less than 0.5% with a nice harmonic profile:<\/p>\n

\"4P1L<\/a>\"4P1L<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

  Quick breadboard this evening after watching the world cup match.\u00a0   Increased screen voltage to 160V and dialed the feedback resistor to achieve minimum distortion without jumping back to 100% pentode mode. Nice to see 2W at less than 0.5% with a nice harmonic profile:<\/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":[782,322,616,352],"class_list":["post-3551","post","type-post","status-publish","format-standard","hentry","category-valves","tag-4p1l","tag-4p1l-se","tag-robustiano","tag-schade-feedback"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-Vh","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3551","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=3551"}],"version-history":[{"count":1,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3551\/revisions"}],"predecessor-version":[{"id":3555,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3551\/revisions\/3555"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=3551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=3551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=3551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}