{"id":1873,"date":"2013-08-27T17:13:46","date_gmt":"2013-08-27T16:13:46","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=1873"},"modified":"2013-08-27T17:21:19","modified_gmt":"2013-08-27T16:21:19","slug":"4-65a-se-amp-first-tweaks","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2013\/08\/27\/4-65a-se-amp-first-tweaks\/","title":{"rendered":"4-65A SE Amp: first tweaks"},"content":{"rendered":"

As discussed previously, I replaced the gyrator’s polypropylene\u00a0caps with better ones I had at hand which are\u00a01uF 450Vdc Mundorf Mcap EVO Silver Gold Oil Cap (EVOSGO-080). I should look at lower value. A 220nF or even 100nF one should provide a 1Hz -3dB point with the 4M7 resistor. Anyway, the sound is a tad better in the bass I would say. Nice upgrade but should listen to it more to find what other changes has this capacitor made to the amp:<\/p>\n

\"Replacing <\/a>
Replacing the capacitors <\/div> <\/div> <\/div>
\"Mu-follower <\/a>
Mu-follower gyrator boards finished <\/div> <\/div> <\/div> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"

As discussed previously, I replaced the gyrator’s polypropylene\u00a0caps with better ones I had at hand which are\u00a01uF 450Vdc Mundorf Mcap EVO Silver Gold Oil Cap (EVOSGO-080). I should look at lower value. A 220nF or even 100nF one should provide a 1Hz -3dB point with the 4M7 resistor. Anyway, the sound is a tad better … Continue reading “4-65A SE Amp: first tweaks”<\/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":[150,5],"tags":[780,105,425],"class_list":["post-1873","post","type-post","status-publish","format-standard","hentry","category-4-65a-se-amplifier-2","category-valves","tag-4-65a","tag-4-65a-dht","tag-4-65a-se-amp"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-ud","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/1873","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=1873"}],"version-history":[{"count":4,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/1873\/revisions"}],"predecessor-version":[{"id":1877,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/1873\/revisions\/1877"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=1873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=1873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=1873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}