{"id":279,"date":"2017-04-06T13:00:17","date_gmt":"2017-04-06T18:00:17","guid":{"rendered":"https:\/\/knm.org.uk\/blog\/?page_id=279"},"modified":"2017-04-06T13:06:28","modified_gmt":"2017-04-06T18:06:28","slug":"v86p-psu-internals","status":"publish","type":"page","link":"https:\/\/knm.org.uk\/blog\/v86p-psu-internals\/","title":{"rendered":"V86P PSU Internals"},"content":{"rendered":"<p>Internal photographs of the Victor V86P PSU, thanks to&nbsp;StickByDos on the <a href=\"https:\/\/www.vogons.org\/\">vogons.org<\/a><\/p>\n<p>ngg_shortcode_0_placeholderOther notes:<\/p>\n<ul>\n<li>The diode on the underside is an FR103<\/li>\n<li>Q1 is marked BUW13A<\/li>\n<li>Q3 is marked C3345<\/li>\n<li>Q4 is marked C2001<\/li>\n<li>D15 is marked FES8CT<\/li>\n<li>SCR1 is marked RIC126M<\/li>\n<li>SHR is marked TL431C<\/li>\n<li>R24 and R24 are 220 ohm<\/li>\n<li>R28 is 68 5% (located between SCR1 and C23)<\/li>\n<li>R31 is 68 ohm (vertically mounted by Va)<\/li>\n<li>R37 is 1k 5% (located between Q3 and Q4)<\/li>\n<li>C18 is 3.3\u00b5F 50V<\/li>\n<li>C20 and C21 are 2200\u00b5F 16V<\/li>\n<li>C23 is 1\u00b5F 50V<\/li>\n<li>Z3 markings are hard to read, but measures 8.6V<\/li>\n<\/ul>\n<p>Voltages on Va, Vb, Vc with the laptop connected, powered off, and battery disconnected:<\/p>\n<ul>\n<li>Va 8.63V<\/li>\n<li>Vb 8.11V<\/li>\n<li>Vc 7.35V<\/li>\n<\/ul>\n<p>Datasheets for semiconductors:<\/p>\n<ul>\n<li><a href=\"\/datasheets\/2SC2001.pdf\">2SC2001<\/a><\/li>\n<li><a href=\"\/datasheets\/2SC3345.pdf\">2SC3345<\/a><\/li>\n<li><a href=\"\/datasheets\/FES8CT.pdf\">FES8CT<\/a><\/li>\n<li><a href=\"\/datasheets\/TIC126M.pdf\">TIC126M<\/a><\/li>\n<li><a href=\"\/datasheets\/TL431.pdf\">TL431<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Internal photographs of the Victor V86P PSU, thanks to&nbsp;StickByDos on the vogons.org &#8221; order_by=&#8221;sortorder&#8221; order_direction=&#8221;ASC&#8221; returns=&#8221;included&#8221; maximum_entity_count=&#8221;500&#8243;]Other notes: The diode on the underside is an FR103 Q1 is marked BUW13A Q3 is marked C3345 Q4 is marked C2001 D15 is marked FES8CT SCR1 is marked RIC126M SHR is marked TL431C R24 and R24 are 220 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-279","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/pages\/279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/comments?post=279"}],"version-history":[{"count":4,"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/pages\/279\/revisions"}],"predecessor-version":[{"id":284,"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/pages\/279\/revisions\/284"}],"wp:attachment":[{"href":"https:\/\/knm.org.uk\/blog\/wp-json\/wp\/v2\/media?parent=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}