{"id":"S85051929","label":"Frequency multipliers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85051929","normalized_label":"frequency multipliers","broader":["http://id.loc.gov/authorities/subjects/sh85051921"],"aliases":["Static frequency changers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85051929","provider":"lcsh","revision":"20cf6ca1f03c8762","taxonomy_revision":"f050b5d4780b1289","title":"Frequency multipliers","url":"/topics/S85051929","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900733411675750912","address_version":"morton4x16-v1","coordinates":[0,20,18216,25600],"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}