{"id":"S85021033","label":"Cathode ray tubes","description":"Here are entered works on the theory, construction, design, characteristics, etc. of cathode ray tubes. Works on the application of cathode ray tubes in computer terminals are entered under [Video display terminals.]","source_url":"https://id.loc.gov/authorities/subjects/sh85021033","normalized_label":"cathode ray tubes","broader":["http://id.loc.gov/authorities/subjects/sh85066140","http://id.loc.gov/authorities/subjects/sh85141746"],"aliases":["CRT's"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85021033","provider":"lcsh","revision":"ee39023112729bbc","taxonomy_revision":"f050b5d4780b1289","title":"Cathode ray tubes","url":"/topics/S85021033","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9547644421412095492","address_version":"morton4x16-v1","coordinates":[0,20,17733,41984],"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}