{"id":3994,"date":"2014-11-22T19:10:21","date_gmt":"2014-11-22T19:10:21","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=3994"},"modified":"2014-11-22T19:10:57","modified_gmt":"2014-11-22T19:10:57","slug":"814-se-amp-upgrading-the-gyrator-loads","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2014\/11\/22\/814-se-amp-upgrading-the-gyrator-loads\/","title":{"rendered":"814 SE Amp: upgrading the gyrator loads"},"content":{"rendered":"

\"IMG_1811\"<\/a><\/p>\n

The upgrade made to the 814 SE<\/a> was quite simple, I replaced the gyrator carbon 4M7 for a Holco one and the mu resistor for a Mills 820R MRA05 5W. The capacitor was finally reduced from the outrageous 1uF Mundorf Mcap EVO Oil Gold to an 220nF 450Vdc Mundorf Mcap EVO Silver Oil.<\/p>\n

The main change was the capacitor and proved to have no loss impact on the bass. I have recently made the OT change so cannot comment on the overall impact in the sound of these changes. I can say at this stage that I cannot notice any big change. It sounds as good as before!<\/p>\n

\"IMG_0366.JPG\"<\/a><\/p>\n

I’d have expected a noticeable change by reducing the size of the cap, but in this case I didn’t.<\/p>\n","protected":false},"excerpt":{"rendered":"

The upgrade made to the 814 SE was quite simple, I replaced the gyrator carbon 4M7 for a Holco one and the mu resistor for a Mills 820R MRA05 5W. The capacitor was finally reduced from the outrageous 1uF Mundorf Mcap EVO Oil Gold to an 220nF 450Vdc Mundorf Mcap EVO Silver Oil. The main … Continue reading “814 SE Amp: upgrading the gyrator loads”<\/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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[476,12,158,5],"tags":[394,272,668,665,470,666,667,651],"class_list":["post-3994","post","type-post","status-publish","format-standard","hentry","category-814-se-amplfier","category-dht-valves","category-se-designs","category-valves","tag-46-dht","tag-46-driver","tag-814-dht","tag-814-se","tag-814-se-amplifier","tag-gyrator-load","tag-mu-follower-driver","tag-mu-follower"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-12q","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3994","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=3994"}],"version-history":[{"count":3,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3994\/revisions"}],"predecessor-version":[{"id":4015,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3994\/revisions\/4015"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=3994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=3994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=3994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}