{"id":"S85084952","label":"Microwave amplifiers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85084952","normalized_label":"microwave amplifiers","broader":["http://id.loc.gov/authorities/subjects/sh85084958"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85084952","provider":"lcsh","revision":"801cb61a72e17d15","taxonomy_revision":"f050b5d4780b1289","title":"Microwave amplifiers","url":"/topics/S85084952","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900790311402489344","address_version":"morton4x16-v1","coordinates":[0,20,18732,24576],"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}