{"id":47,"date":"2014-04-07T12:23:00","date_gmt":"2014-04-07T10:23:00","guid":{"rendered":"https:\/\/rerunelectronicscom.wordpress.com\/2014\/04\/07\/m-1-golden-retriever-discrete-opamp-dual-microphone-preamplifier"},"modified":"2018-11-03T10:25:12","modified_gmt":"2018-11-03T10:25:12","slug":"m-1-golden-retriever-discrete-opamp-dual-microphone-preamplifier","status":"publish","type":"post","link":"https:\/\/rerun-electronics.com\/?p=47","title":{"rendered":"M-1 Golden Retriever Discrete OpAmp Dual Microphone Preamplifier"},"content":{"rendered":"\n<ul class=\"wp-block-gallery columns-1 is-cropped wp-block-gallery-1\"><li class=\"blocks-gallery-item\"><figure><a href=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"734\" height=\"481\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022.jpg\" alt=\"\" data-id=\"2059\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=2059\" class=\"wp-image-2059 is-layout-flex wp-block-gallery-is-layout-flex\" srcset=\"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022.jpg 734w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022-300x197.jpg 300w\" sizes=\"auto, (max-width: 734px) 100vw, 734px\" \/><\/a><\/figure><\/li><\/ul>\n\n\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><i>Built For Simon Berckelman and Golden Retriever Studios<\/i><\/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;\">The M-1 Dual Microphone Preamplifier is a discrete opamp based unit that provides lots of clean gain and a very broad frequency response. &nbsp;Its design is essentially similar to that of the Duette unit I built some years ago. &nbsp;Simon has borrowed this piece many times so we thought why not build one for his studio? &nbsp;<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">&nbsp;<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">One of the interesting features of this unit are the amazing ITT 30 position switches. &nbsp;They feel very solid and it&#8217;s great to make small changes of gain which are instantly repeatable. &nbsp;As well, the top switches allow the output to be switched from transformer to unbalanced capacitor-coupled for a different sound. &nbsp; Simon has some nice vintage Quad Eight transformers that are used here. &nbsp;<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">&nbsp;<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">Of course the case itself is unique. &nbsp;It comes from military service and still has the U.S. Property badge to prove it! &nbsp;Besides having a lid for easy transport servicing the unit is very easy as the entire chassis slides out of the enclosure by releasing the front bolts. &nbsp;<\/div>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Built For Simon Berckelman and Golden Retriever Studios &nbsp; The M-1 Dual Microphone Preamplifier is a discrete opamp based unit that provides lots of clean gain and a very broad frequency response. &nbsp;Its design is essentially similar to that of the Duette unit I built some years ago. &nbsp;Simon has borrowed this piece many times &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/rerun-electronics.com\/?p=47\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;M-1 Golden Retriever Discrete OpAmp Dual Microphone Preamplifier&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2059,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","_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},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[],"class_list":["post-47","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":"https:\/\/rerun-electronics.com\/author\/rerun"},"featured_img":"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022-300x197.jpg","jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front16\u2022.jpg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/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 12 years ago","modified":"Updated 8 years ago"},"absolute_dates":{"created":"Posted on 2014-04-07","modified":"Updated on 2018-11-03"},"absolute_dates_time":{"created":"Posted on 2014-04-07 12:23","modified":"Updated on 2018-11-03 10:25"},"featured_img_caption":"","series_order":"","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/papHjQ-L","_links":{"self":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=47"}],"version-history":[{"count":4,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":2077,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions\/2077"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/media\/2059"}],"wp:attachment":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}