{"id":"S85047651","label":"Feedback oscillators","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85047651","normalized_label":"feedback oscillators","broader":["http://id.loc.gov/authorities/subjects/sh85047646","http://id.loc.gov/authorities/subjects/sh85095903"],"aliases":["Oscillators, Feedback"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85047651","provider":"lcsh","revision":"2387e65f0e6a4cea","taxonomy_revision":"f050b5d4780b1289","title":"Feedback oscillators","url":"/topics/S85047651","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511756620657460740","address_version":"morton4x16-v1","coordinates":[0,20,18149,35840],"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}