{"id":3272,"date":"2014-04-06T16:46:50","date_gmt":"2014-04-06T15:46:50","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=3272"},"modified":"2014-04-06T16:56:46","modified_gmt":"2014-04-06T15:56:46","slug":"siberian-dht-preamp-gen3-filament-supply","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2014\/04\/06\/siberian-dht-preamp-gen3-filament-supply\/","title":{"rendered":"Siberian DHT Preamp Gen3: filament supply"},"content":{"rendered":"

Time to upgrade my pre-amplifier (again) and is perfect timing to go back to 4P1L. The Siberian preamp had a fantastic bass response and detail.<\/p>\n

Here is the new filament raw supply. It has split bobbin transformers, schottky rectifier bridge and input choke LC filter stage. It also has a CM choke and EPCOS electrolytic capacitors:<\/p>\n

\"Power <\/a>
Power supply ready <\/div> <\/div> <\/div>
\"Input <\/a>
Input chokes <\/div> <\/div>
\"IMG_1560\" <\/a> <\/div> <\/div> <\/div>
\"Chokes <\/a>
Chokes and capacitor bank <\/div> <\/div>
\"Schottky <\/a>
Schottky Rectifier Bridge plus snubber <\/div> <\/div> <\/div>
\"Building <\/a>
Building the power supply <\/div> <\/div> <\/div> <\/div> <\/div>\n

Dead quiet at 16V output and 550mA which is the load used by 4P1L starved filaments in parallel with filament bias.<\/p>\n

Soon to build the preamp!<\/p>\n

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

Time to upgrade my pre-amplifier (again) and is perfect timing to go back to 4P1L. The Siberian preamp had a fantastic bass response and detail. Here is the new filament raw supply. It has split bobbin transformers, schottky rectifier bridge and input choke LC filter stage. It also has a CM choke and EPCOS electrolytic … Continue reading “Siberian DHT Preamp Gen3: filament supply”<\/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":[12,152,156,158,5],"tags":[782,142,215,6,186,583,9,114],"class_list":["post-3272","post","type-post","status-publish","format-standard","hentry","category-dht-valves","category-power-supply","category-pre-amplifier-valves","category-se-designs","category-valves","tag-4p1l","tag-4p1l-preamp","tag-4p1l-siberian","tag-dht","tag-dht-preamp","tag-dht-preamp-supply","tag-pre-amplifier","tag-siberian"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-QM","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3272","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=3272"}],"version-history":[{"count":3,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3272\/revisions"}],"predecessor-version":[{"id":3279,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/3272\/revisions\/3279"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=3272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=3272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=3272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}