{"id":32,"date":"2016-11-12T21:22:00","date_gmt":"2016-11-12T21:22:00","guid":{"rendered":"https:\/\/rerunelectronicscom.wordpress.com\/2016\/11\/12\/the-piano-88-dual-tube-microphone-preamplifier"},"modified":"2018-11-02T16:55:24","modified_gmt":"2018-11-02T16:55:24","slug":"the-piano-88-dual-tube-microphone-preamplifier","status":"publish","type":"post","link":"http:\/\/rerun-electronics.com\/?p=32","title":{"rendered":"The Piano 88 Dual Tube Microphone Preamplifier"},"content":{"rendered":"\n<ul class=\"wp-block-gallery columns-1 is-cropped wp-block-gallery-1\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"2020\" height=\"1200\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022.jpg\" alt=\"\" data-id=\"1880\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=1880\" class=\"wp-image-1880 is-layout-flex wp-block-gallery-is-layout-flex\" srcset=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022.jpg 2020w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022-300x178.jpg 300w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022-768x456.jpg 768w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022-1024x608.jpg 1024w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><\/ul>\n\n\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\n<div class=\"separator\" style=\"clear: both; text-align: left;\">&nbsp;<\/div>\n<p><i>Built for Ed Carlsen<\/i><i style=\"font-size: 1rem;\">&nbsp;<\/i><\/p>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">The latest microphone preamplifier from Rerun comes from a request from Ed Carlsen to create a unit that will respond well while recording piano. &nbsp;Most of the time condenser microphones are used to record piano in the studio. &nbsp;This means that a dedicated preamplifier doesn&#8217;t need a lot of gain but does need to be very low noise and not prone to distortion. &nbsp;For this preamp I set a goal of around 45dB of gain and tried to keep things as simple as possible. &nbsp;Due to the restrictions, a transistor-regulated power supply was a must which does add a certain amount of complication; however the benefits of doing so outweigh any hesitations.<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><i>&nbsp;<\/i><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\n<p>The name come from the fact that I used two different &#8220;88&#8221; tubes&#8211; the ECC88 as output driver and an ECC808 as gain stage. &nbsp;Of course the fact the piano has 88 keys is just a happy accident!<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>&nbsp; Built for Ed Carlsen&nbsp; The latest microphone preamplifier from Rerun comes from a request from Ed Carlsen to create a unit that will respond well while recording piano. &nbsp;Most of the time condenser microphones are used to record piano in the studio. &nbsp;This means that a dedicated preamplifier doesn&#8217;t need a lot of gain &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/rerun-electronics.com\/?p=32\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The Piano 88 Dual Tube Microphone Preamplifier&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1880,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[],"class_list":["post-32","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-microphone-preampflifiers","post_format-post-format-image"],"author_meta":{"display_name":"rerun","author_link":"http:\/\/rerun-electronics.com\/author\/rerun"},"featured_img":"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022-300x178.jpg","jetpack_publicize_connections":[],"jetpack_featured_media_url":"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2016\/11\/side19-copy\u2022.jpg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"http:\/\/rerun-electronics.com\/?cat=7\" class=\"advgb-post-tax-term\">Microphone Preampflifiers<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Microphone Preampflifiers<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 9 years ago","modified":"Updated 7 years ago"},"absolute_dates":{"created":"Posted on 2016-11-12","modified":"Updated on 2018-11-02"},"absolute_dates_time":{"created":"Posted on 2016-11-12 21:22","modified":"Updated on 2018-11-02 16:55"},"featured_img_caption":"","series_order":"","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/papHjQ-w","_links":{"self":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/32","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=32"}],"version-history":[{"count":2,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/32\/revisions"}],"predecessor-version":[{"id":1882,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/32\/revisions\/1882"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/media\/1880"}],"wp:attachment":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=32"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=32"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}