{"id":10354,"date":"2021-11-21T10:27:48","date_gmt":"2021-11-21T10:27:48","guid":{"rendered":"https:\/\/www.bartola.co.uk\/valves\/?p=10354"},"modified":"2021-11-21T10:27:48","modified_gmt":"2021-11-21T10:27:48","slug":"01a-preamp-by-nash","status":"publish","type":"post","link":"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/","title":{"rendered":"01a Preamp by Nash"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>It&#8217;s always satisfying to see someone else enjoying the end result of their build work. Here&#8217;s a great example of Nash building his take on the <a href=\"https:\/\/www.bartola.co.uk\/valves\/2020\/12\/29\/01a-low-gain-dht-preamp\/\">01a low gain DHT pre-amp<\/a>:<\/p>\n<pre dir=\"ltr\" data-setdir=\"false\">Hi Ale,\n\nIts now over two months since I have been listening to your low gain version of the 01A preamp in concert with a Slagle AVC after it.\n\nOver a span of a few years I have built several preamps and I can honestly say that this one is substantially better than any of the others. As a classical music fan I value attributes like clarity, timbre, body, weight and speed and your design delivers! I would like to use the analogy of a superb cake with icing- the cake is the 01A pre and the icing is the AVC. Thank you for a great design!\n\nI have recently replaced RMu and the divider resistors with the TT Electronics PFC series SMD resistors mounted on a 1206 adapter. These are tantalum nitride resistors and they sound wonderful in this application. \n\nFurther, I am getting interested in your 300B SE builds. Are you using a preamp before these? Please send me a link to your latest work in this area which you feel I should consider.\n\nRegards,\nNash Bapasola\u00a0 in NJ<\/pre>\n<div dir=\"ltr\" data-setdir=\"false\"><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"10356\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/dsc00434-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?fit=2000%2C1500&amp;ssl=1\" data-orig-size=\"2000,1500\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;3.3&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;DSC-W730&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1362972309&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.5&quot;,&quot;iso&quot;:&quot;250&quot;,&quot;shutter_speed&quot;:&quot;0.033333333333333&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DSC00434\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?fit=840%2C630&amp;ssl=1\" class=\"aligncenter size-full wp-image-10356\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=840%2C630&#038;ssl=1\" alt=\"\" width=\"840\" height=\"630\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00434-1.jpg?w=1680&amp;ssl=1 1680w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/div>\n<p><!--more--><\/p>\n<div dir=\"ltr\" data-setdir=\"false\"><a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"10357\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/dsc00396\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?fit=2000%2C1500&amp;ssl=1\" data-orig-size=\"2000,1500\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;3.3&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;DSC-W730&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1362377099&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.5&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.04&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DSC00396\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?fit=840%2C630&amp;ssl=1\" class=\"aligncenter size-full wp-image-10357\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=840%2C630&#038;ssl=1\" alt=\"\" width=\"840\" height=\"630\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00396.jpg?w=1680&amp;ssl=1 1680w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a> <a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"10358\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/dsc00397\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?fit=2000%2C1500&amp;ssl=1\" data-orig-size=\"2000,1500\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;3.3&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;DSC-W730&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1362377153&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.5&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.05&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DSC00397\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?fit=840%2C630&amp;ssl=1\" class=\"aligncenter size-full wp-image-10358\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=840%2C630&#038;ssl=1\" alt=\"\" width=\"840\" height=\"630\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00397.jpg?w=1680&amp;ssl=1 1680w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a> <a href=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"10359\" data-permalink=\"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/dsc00450-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?fit=1149%2C531&amp;ssl=1\" data-orig-size=\"1149,531\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;3.3&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;DSC-W730&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1365992742&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.5&quot;,&quot;iso&quot;:&quot;80&quot;,&quot;shutter_speed&quot;:&quot;0.033333333333333&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DSC00450 (2)\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?fit=840%2C388&amp;ssl=1\" class=\"aligncenter size-full wp-image-10359\" src=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?resize=840%2C388&#038;ssl=1\" alt=\"\" width=\"840\" height=\"388\" srcset=\"https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?w=1149&amp;ssl=1 1149w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?resize=300%2C139&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?resize=1024%2C473&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.bartola.co.uk\/valves\/wp-content\/uploads\/2021\/11\/DSC00450-2.jpg?resize=768%2C355&amp;ssl=1 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/div>\n<div dir=\"ltr\" data-setdir=\"false\"><\/div>\n<div dir=\"ltr\" data-setdir=\"false\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; It&#8217;s always satisfying to see someone else enjoying the end result of their build work. Here&#8217;s a great example of Nash building his take on the 01a low gain DHT pre-amp: Hi Ale, Its now over two months since I have been listening to your low gain version of the 01A preamp in concert &hellip; <a href=\"https:\/\/www.bartola.co.uk\/valves\/2021\/11\/21\/01a-preamp-by-nash\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;01a Preamp by Nash&#8221;<\/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":[5],"tags":[10,309,1195,1061],"class_list":["post-10354","post","type-post","status-publish","format-standard","hentry","category-valves","tag-01a","tag-01a-preamp","tag-bartola-hybrid-mu-follower","tag-source-follower"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2r2tK-2H0","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/10354","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=10354"}],"version-history":[{"count":1,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/10354\/revisions"}],"predecessor-version":[{"id":10360,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/posts\/10354\/revisions\/10360"}],"wp:attachment":[{"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/media?parent=10354"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/categories?post=10354"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bartola.co.uk\/valves\/wp-json\/wp\/v2\/tags?post=10354"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}