{"id":10277,"date":"2025-02-03T08:44:43","date_gmt":"2025-02-03T08:44:43","guid":{"rendered":"https:\/\/museumkesher.org.il\/catalog\/vacuum-tubes\/"},"modified":"2025-02-03T08:55:36","modified_gmt":"2025-02-03T08:55:36","slug":"vacuum-tubes","status":"publish","type":"catalog","link":"https:\/\/museumkesher.org.il\/en\/catalog\/vacuum-tubes\/","title":{"rendered":"Vacuum Tubes"},"content":{"rendered":"<p>Vacuum tubes, based on thermal emission, were the basis for electronics and communications until the transition to solid-state technologies in the late 20th century.<br \/>\nVacuum tubes are based on a filament wire that heats the cathode, which emits electrons. The electrons are attracted to a positive voltage on the anode. Additional electrodes between the cathode and the anode are called grids, and control the current between the cathode and the anode.<br \/>\nThe most common tubes were Diode (which was used as a rectifier or detector), Triode (with one grid), Tetrode (two grids), and Pentode (three grids).<\/p>\n","protected":false},"featured_media":10266,"template":"","catalog_cat":[28],"period":[99,39,93,44,40,43],"class_list":["post-10277","catalog","type-catalog","status-publish","has-post-thumbnail","hentry","catalog_cat-other","period-pre-state","period-war-of-independence","period-sinai-campaign","period-six-day-war","period-yom-kippur-war","period-peace-for-galilee-war"],"acf":[],"_links":{"self":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog\/10277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog"}],"about":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/types\/catalog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/media\/10266"}],"wp:attachment":[{"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/media?parent=10277"}],"wp:term":[{"taxonomy":"catalog_cat","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/catalog_cat?post=10277"},{"taxonomy":"period","embeddable":true,"href":"https:\/\/museumkesher.org.il\/en\/wp-json\/wp\/v2\/period?post=10277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}