{"id":"S85136927","label":"Transistor amplifiers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85136927","normalized_label":"transistor amplifiers","broader":["http://id.loc.gov/authorities/subjects/sh85004652","http://id.loc.gov/authorities/subjects/sh85136935"],"aliases":["Amplifiers, Transistor"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85136927","provider":"lcsh","revision":"7dc95b33ce4fea1a","taxonomy_revision":"f050b5d4780b1289","title":"Transistor amplifiers","url":"/topics/S85136927","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903196025727369728","address_version":"morton4x16-v1","coordinates":[0,20,19544,31744],"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}