{"id":"S85136929","label":"Transistor audio amplifiers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85136929","normalized_label":"transistor audio amplifiers","broader":["http://id.loc.gov/authorities/subjects/sh85004646","http://id.loc.gov/authorities/subjects/sh85136927"],"aliases":["Audio amplifiers, Transistor"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85136929","provider":"lcsh","revision":"dfa7f87955c5f732","taxonomy_revision":"f050b5d4780b1289","title":"Transistor audio amplifiers","url":"/topics/S85136929","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511685975957717504","address_version":"morton4x16-v1","coordinates":[0,20,19544,33792],"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}