{"id":983,"date":"2013-01-01T17:42:42","date_gmt":"2013-01-01T17:42:42","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?page_id=983"},"modified":"2013-01-07T20:05:13","modified_gmt":"2013-01-07T20:05:13","slug":"4p1l","status":"publish","type":"page","link":"https:\/\/www.bartola.co.uk\/valves\/valve-curves\/4p1l\/","title":{"rendered":"4P1L"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"984\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/valve-curves\/4p1l\/4p1l-triode-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?fit=2606%2C2109&amp;ssl=1\" data-orig-size=\"2606,2109\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon PowerShot G10&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1357060545&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6.1&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.5&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"4P1L Triode\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?fit=840%2C679&amp;ssl=1\" class=\"alignleft size-full wp-image-984\" alt=\"4P1L Triode\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?resize=840%2C680\" width=\"840\" height=\"680\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?w=2606&amp;ssl=1 2606w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?resize=300%2C242&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?resize=1024%2C828&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?resize=370%2C300&amp;ssl=1 370w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?w=1680&amp;ssl=1 1680w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Triode.jpg?w=2520&amp;ssl=1 2520w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/p>\n<p>SPICE model for the 4P1L can be found <a title=\"4P1L SPICE model updated\" href=\"http:\/\/www.bartola.co.uk\/valves\/2013\/01\/07\/4p1l-spice-model-updated\/\">here<\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"985\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/valve-curves\/4p1l\/4p1l-pentode-vg2150v\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?fit=2675%2C2220&amp;ssl=1\" data-orig-size=\"2675,2220\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon PowerShot G10&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1357060107&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6.1&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.5&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"4P1L Pentode Vg2=150V\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?fit=840%2C696&amp;ssl=1\" class=\"alignleft size-full wp-image-985\" alt=\"4P1L Pentode Vg2=150V\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?resize=840%2C697\" width=\"840\" height=\"697\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?w=2675&amp;ssl=1 2675w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?resize=300%2C248&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?resize=1024%2C849&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?resize=361%2C300&amp;ssl=1 361w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?w=1680&amp;ssl=1 1680w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-Pentode-Vg2150V.jpg?w=2520&amp;ssl=1 2520w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/p>\n<p>SPICE model for the 4P1L in pentode mode can be found <a title=\"4P1L Pentode Spice Model\" href=\"http:\/\/www.bartola.co.uk\/valves\/2013\/01\/06\/4p1l-pentode-spice-model\/\">here<\/a><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"986\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/valve-curves\/4p1l\/4p1l-pentode-vg2100v\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?fit=2747%2C2142&amp;ssl=1\" data-orig-size=\"2747,2142\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon PowerShot G10&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1357060286&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6.1&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.5&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"4P1L pentode Vg2=100V\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?fit=840%2C655&amp;ssl=1\" class=\"alignleft size-full wp-image-986\" alt=\"4P1L pentode Vg2=100V\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?resize=840%2C655\" width=\"840\" height=\"655\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?w=2747&amp;ssl=1 2747w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?resize=300%2C233&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?resize=1024%2C798&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?resize=384%2C300&amp;ssl=1 384w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?w=1680&amp;ssl=1 1680w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2013\/01\/4P1L-pentode-Vg2100V.jpg?w=2520&amp;ssl=1 2520w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SPICE model for the 4P1L can be found here SPICE model for the 4P1L in pentode mode can be found here<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":193,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-983","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P2r2tK-fR","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/pages\/983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/types\/page"}],"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=983"}],"version-history":[{"count":3,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/pages\/983\/revisions"}],"predecessor-version":[{"id":1024,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/pages\/983\/revisions\/1024"}],"up":[{"embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/pages\/193"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}