{"id":"S85047648","label":"Feedback amplifiers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85047648","normalized_label":"feedback amplifiers","broader":["http://id.loc.gov/authorities/subjects/sh85004652"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85047648","provider":"lcsh","revision":"488ea374493e1978","taxonomy_revision":"f050b5d4780b1289","title":"Feedback amplifiers","url":"/topics/S85047648","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511607087076083204","address_version":"morton4x16-v1","coordinates":[0,20,18149,32768],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}