{"id":51,"date":"2013-08-22T10:54:00","date_gmt":"2013-08-22T08:54:00","guid":{"rendered":"https:\/\/rerunelectronicscom.wordpress.com\/2013\/08\/22\/micromicro-dual-tube-preamplifier"},"modified":"2018-11-03T12:08:04","modified_gmt":"2018-11-03T12:08:04","slug":"micromicro-dual-tube-preamplifier","status":"publish","type":"post","link":"http:\/\/rerun-electronics.com\/?p=51","title":{"rendered":"MicroMicro Dual Tube Preamplifier"},"content":{"rendered":"\n<ul class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-1\"><li class=\"blocks-gallery-item\"><figure><a href=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\u2022.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"919\" height=\"612\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\u2022.jpg\" alt=\"\" data-id=\"2113\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=2113\" class=\"wp-image-2113\" srcset=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\u2022.jpg 919w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\u2022-300x200.jpg 300w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\u2022-768x511.jpg 768w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1071\" height=\"723\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022.jpg\" alt=\"\" data-id=\"2114\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=2114\" class=\"wp-image-2114 is-layout-flex wp-block-gallery-is-layout-flex\" srcset=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022.jpg 1071w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022-300x203.jpg 300w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022-768x518.jpg 768w, http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/33\u2022-1024x691.jpg 1024w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/a><\/figure><\/li><\/ul>\n\n\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><i>Built for Jarno Varsted<\/i><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\"><i>\u00a0<\/i><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">The MicroMicro is a pair of simple tube preamplifiers self contained in a very small case with power supply. \u00a0Normally, I wouldn&#8217;t recommend putting everything in such a small area but the case is just too nice to pass up. \u00a0With proper shielding and spacing of the sensitive components hum and noise are kept to a minimum.<\/div>\n<div>\u00a0<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">Jarno&#8217;s wish was to have a 1950&#8217;s style microphone\/instrument preamplifier with EQ and output level, therefore I chose to use an EF86 pentode as the gain stage. \u00a0It was used extensively as the front end for microphone preamps and guitar amplifiers or just about anywhere a lot of gain was needed in a single tube.<\/div>\n<div>\u00a0<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">The MicroMicro is also relevant in the modern age however. \u00a0It uses a direct-coupled high voltage transistor to allow for a low impedance output and includes phantom power. \u00a0The output level control also ensures that the device can play nice with modern solid state equipment. \u00a0<\/div>\n<div style=\"text-align: center;\">\u00a0<\/div>","protected":false},"excerpt":{"rendered":"<p>Built for Jarno Varsted \u00a0 The MicroMicro is a pair of simple tube preamplifiers self contained in a very small case with power supply. \u00a0Normally, I wouldn&#8217;t recommend putting everything in such a small area but the case is just too nice to pass up. \u00a0With proper shielding and spacing of the sensitive components hum &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/rerun-electronics.com\/?p=51\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;MicroMicro Dual Tube Preamplifier&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":2113,"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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[],"class_list":["post-51","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\/2013\/08\/16\u2022-300x200.jpg","jetpack_publicize_connections":[],"jetpack_featured_media_url":"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2013\/08\/16\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 13 years ago","modified":"Updated 7 years ago"},"absolute_dates":{"created":"Posted on 2013-08-22","modified":"Updated on 2018-11-03"},"absolute_dates_time":{"created":"Posted on 2013-08-22 10:54","modified":"Updated on 2018-11-03 12:08"},"featured_img_caption":"","series_order":"","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/papHjQ-P","_links":{"self":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/51","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=51"}],"version-history":[{"count":3,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":2115,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions\/2115"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/media\/2113"}],"wp:attachment":[{"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}