{"id":8163,"date":"2020-01-02T16:12:27","date_gmt":"2020-01-02T16:12:27","guid":{"rendered":"http:\/\/www.bartola.co.uk\/valves\/?p=8163"},"modified":"2020-01-02T16:12:34","modified_gmt":"2020-01-02T16:12:34","slug":"6ag5-pentode","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2020\/01\/02\/6ag5-pentode\/","title":{"rendered":"6AG5 pentode"},"content":{"rendered":"\n

Here is a nice sharp cut-off RF pentode with low capacitance, high gm and nice curves: 6AG5<\/a>. <\/p>\n\n\n\n

\"6AG5<\/figure><\/div>\n\n\n\n\n\n\n\n

Also the triode curves are interesting with a mu of about 50:<\/p>\n\n\n\n

\"\"
6AG5 triode curves<\/figcaption><\/figure>\n\n\n\n

I spent a bit of time this morning developing a pentode model:<\/p>\n\n\n\n

\"\"
Spice model for the 6AG5 pentode<\/figcaption><\/figure>\n\n\n\n

There is a bit of saturation above 16mA hence the gap between curves. However, this isn’t important as the valve won’t be used near this area. <\/p>\n\n\n\n

Spice models<\/h2>\n\n\n\n

Pentode: <\/p>\n\n\n\n

6AG5-pentode<\/a>Download<\/a><\/div>\n\n\n\n

Triode:<\/p>\n\n\n\n

6AG5-triode<\/a>Download<\/a><\/div>\n\n\n\n

This valve was recommended to me by my friend Nick W. He has used it with great results as a driver to a local feedback output DHT stage. Perfect candidate which I will put in use at some point.<\/p>\n\n\n\n

Hope these curves and the models are useful to you. <\/p>\n","protected":false},"excerpt":{"rendered":"

Here is a nice sharp cut-off RF pentode with low capacitance, high gm and nice curves: 6AG5.<\/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":[24,5],"tags":[1270,1272,1273,1271,1276,1274,1275],"class_list":["post-8163","post","type-post","status-publish","format-standard","hentry","category-valve-curve-tracer","category-valves","tag-6ag5","tag-6ag5-pentode","tag-6ag5-spice-model","tag-6ag5-triode","tag-derk-model","tag-local-feedback","tag-schade-driver"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-27F","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/8163","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=8163"}],"version-history":[{"count":3,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/8163\/revisions"}],"predecessor-version":[{"id":8173,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/8163\/revisions\/8173"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=8163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=8163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=8163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}