{"id":5051,"date":"2015-12-13T19:26:22","date_gmt":"2015-12-13T19:26:22","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=5051"},"modified":"2015-12-13T19:26:22","modified_gmt":"2015-12-13T19:26:22","slug":"goodbye-814se-amp-its-been-a-fantastic-journey","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2015\/12\/13\/goodbye-814se-amp-its-been-a-fantastic-journey\/","title":{"rendered":"Goodbye 814SE Amp, it’s been a fantastic journey"},"content":{"rendered":"

After 2 years of listening pleasure, it’s time to retire the 814SE monster amp.<\/a> With its breadboard nature and high voltages around, this is not safe to have around with my daughter now being 8 months old. Sad to see this amp go and I hope to listen to it some time in the future.<\/p>\n

\"Filament <\/a>
Filament bias and winter heating system <\/div> <\/div>
\"814SE <\/a>
814SE Amp <\/div> <\/div> <\/div>
\"814 <\/a>
814 output valve <\/div> <\/div> <\/div> <\/div>
\"814SE <\/a>
814SE Amp and Lenco Turntable <\/div> <\/div> <\/div>
\"+HT <\/a>
+HT supply <\/div> <\/div> <\/div>
\"6D22S <\/a>
6D22S rectifiers <\/div> <\/div> <\/div>
\"HT <\/a>
HT power supplies <\/div> <\/div> <\/div> <\/div> <\/div>\n

What is was really painful for my back was to lift this ton of iron up to the attic. It’s so heavy and not keen to move it for some time. This amp has been a fantastic learning experience for me, as well as a huge challenge. High voltages, A2 operation, DC-coupling and the mix of sand with plenty of iron here in a 100% DHT amp was the right mix to give me several headaches along the build and testing stages. However, it’s a beauty to listen to, in particular thanks to the 46 and 814 valves which are unique in my view for this circuit and also the optimal tuning of the operating points and the iron used.<\/p>\n

Enough for now, however I’m still working on my safer 4P1L PSE amp, so watch this space \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"

After 2 years of listening pleasure, it’s time to retire the 814SE monster amp. With its breadboard nature and high voltages around, this is not safe to have around with my daughter now being 8 months old. Sad to see this amp go and I hope to listen to it some time in the future. … Continue reading “Goodbye 814SE Amp, it’s been a fantastic journey”<\/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":[476,5],"tags":[412,280,182,668,470,828,602],"class_list":["post-5051","post","type-post","status-publish","format-standard","hentry","category-814-se-amplfier","category-valves","tag-46-dht-filament-bias","tag-46-filament-bias","tag-182","tag-814-dht","tag-814-se-amplifier","tag-814se-amp","tag-class-a2-amplifier"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-1jt","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/5051","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=5051"}],"version-history":[{"count":4,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/5051\/revisions"}],"predecessor-version":[{"id":5062,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/5051\/revisions\/5062"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=5051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=5051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=5051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}