{"id":"S85141747","label":"Vacuum-tubes--Grids","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85141747","normalized_label":"vacuum-tubes--grids","broader":["http://id.loc.gov/authorities/subjects/sh85042110"],"aliases":["Grids (Electronics)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85141747","provider":"lcsh","revision":"b545d30e60c30b7b","taxonomy_revision":"f050b5d4780b1289","title":"Vacuum-tubes--Grids","url":"/topics/S85141747","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088287466760045124","address_version":"morton4x16-v1","coordinates":[0,20,19619,52224],"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}