{"id":31,"date":"2017-02-28T18:44:00","date_gmt":"2017-02-28T18:44:00","guid":{"rendered":"https:\/\/rerunelectronicscom.wordpress.com\/2017\/02\/28\/the-messgenerator-tube-bass-amplifier"},"modified":"2018-11-02T18:56:07","modified_gmt":"2018-11-02T18:56:07","slug":"the-messgenerator-tube-bass-amplifier","status":"publish","type":"post","link":"https:\/\/rerun-electronics.com\/?p=31","title":{"rendered":"The Messgenerator Tube Bass Amplifier"},"content":{"rendered":"\n<ul class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-1\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1365\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33-1.jpg\" alt=\"\" data-id=\"1932\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=1932\" class=\"wp-image-1932\" srcset=\"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33-1.jpg 2048w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33-1-300x200.jpg 300w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33-1-768x512.jpg 768w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33-1-1024x683.jpg 1024w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1368\" src=\"http:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/back15.jpg\" alt=\"\" data-id=\"1927\" data-link=\"http:\/\/rerun-electronics.com\/?attachment_id=1927\" class=\"wp-image-1927 is-layout-flex wp-block-gallery-is-layout-flex\" srcset=\"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/back15.jpg 2048w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/back15-300x200.jpg 300w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/back15-768x513.jpg 768w, https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/back15-1024x684.jpg 1024w\" sizes=\"auto, (max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><\/ul>\n\n\n<p><i>Built for Elli Fugmann<\/i><br><i><br><\/i>The Messgenerator bass amp is another example where the case suits the end result perfectly. &nbsp;Because it is big enough, the case could accept large transformers, tubes and the main filter capacitors which are of polypropylene. &nbsp;They will last a lifetime and are very effective. &nbsp;There is no hum, the amp is absolutely silent.<\/p>\n<p>I did take some liberties in this amp to add transistors where they would improve the reliability or tone of the amp. &nbsp;That means there is an &#8220;electronic choke&#8221; to improve filtering. &nbsp;As well, the KT88 output tubes are direct coupled with source follower inputs to allow for less blocking distortion which is always a big problem with bass amps due to the large coupling capacitors.<\/p>\n<p>The amp sports a pretty classic circuit with a triode input feeding a pentode and direct coupled cathode follower. &nbsp;From there is a James tone stack with treble, mid and low controls. &nbsp;The triode section can also switch between three different bass eq settings&#8211; thin, thick and obese! &nbsp;Naturally, the normal optical compressor is also included.<\/p>\n<p>The unique touch however is a suggestion from Elli. &nbsp;She wanted to have a built-in fuzz sound that could be controlled by a footswitch. &nbsp;It&#8217;s a cool idea because it allows the amp to mix the original signal with the fuzz so there is never the problem of a weak, thin fuzz sound.<\/p>","protected":false},"excerpt":{"rendered":"<p>Built for Elli FugmannThe Messgenerator bass amp is another example where the case suits the end result perfectly. &nbsp;Because it is big enough, the case could accept large transformers, tubes and the main filter capacitors which are of polypropylene. &nbsp;They will last a lifetime and are very effective. &nbsp;There is no hum, the amp is &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/rerun-electronics.com\/?p=31\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The Messgenerator Tube Bass Amplifier&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1876,"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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-instrument-amplifiers","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\/front33-300x200.jpg","jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/rerun-electronics.com\/wp-content\/uploads\/2018\/11\/front33.jpg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/rerun-electronics.com\/?cat=5\" class=\"advgb-post-tax-term\">Instrument Amplifiers<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Instrument Amplifiers<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 9 years ago","modified":"Updated 8 years ago"},"absolute_dates":{"created":"Posted on 2017-02-28","modified":"Updated on 2018-11-02"},"absolute_dates_time":{"created":"Posted on 2017-02-28 18:44","modified":"Updated on 2018-11-02 18:56"},"featured_img_caption":"","series_order":"","jetpack_sharing_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/papHjQ-v","_links":{"self":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/31","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=31"}],"version-history":[{"count":6,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions"}],"predecessor-version":[{"id":1945,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions\/1945"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=\/wp\/v2\/media\/1876"}],"wp:attachment":[{"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rerun-electronics.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}