{"type_number":"6GT5","canonical_url":"https://tubeofile.com/tubes/6GT5","manufacturer":"RCA","tube_type_key":"beam_tetrode","tube_type_display_name":"Beam Tetrode","base_name":"Novar","description":"Beam power tube on a large Novar 9-pin base, designed for TV horizontal deflection amplifier service. High-perveance type with coated unipotential cathode. Can also be triode-strapped for audio use. Indirectly heated.","is_directly_heated":false,"completeness":"low","notes":["Maximum ratings for horizontal deflection service: plate supply 770V, peak positive-pulse plate voltage 6500V, peak negative-pulse plate voltage 1500V, screen voltage 220V, plate dissipation 17.5W.","Triode-strapped (g2 tied to plate) Class A1 at Va=250V, Vg2=150V, Vg1=-22.5V: Ia=70mA, Ig2=2.1mA, Rp=15kΩ, Gm=7100 umhos, mu=4.4.","At Va=60V, Vg2=150V in triode connection: Ia=390mA, Ig2=32mA. This demonstrates the very high perveance at low plate voltages.","The Novar base is a 9-pin design similar in concept to Compactron but with a different physical form factor."],"references":["https://frank.pocnet.net/sheets/049/6/6GT5.pdf","https://tdsl.duncanamps.com/show.php?des=6GT5"],"source_urls":{"r_type":null,"tdsl":"https://tdsl.duncanamps.com/show.php?des=6GT5","radiomuseum":"https://www.radiomuseum.org/tubes/tube_6gt5.html"},"raw_equivalents":["6GT5A"],"equivalents":[],"similar":[{"type_number":"6JE6","reason":"Similar Novar horizontal deflection beam tetrode — different operating points","has_detail_page":false},{"type_number":"6LQ6","reason":"Similar Novar horizontal deflection beam tetrode — different ratings","has_detail_page":false}],"pins":[{"pin_number":"1","function":"Grid 2 (Screen)","function_code":"g2","notes":null},{"pin_number":"2","function":"Grid 1 (Control)","function_code":"g1","notes":null},{"pin_number":"3","function":"Cathode, Grid 3 (Suppressor)","function_code":"k","notes":null},{"pin_number":"4","function":"Heater","function_code":"h","notes":null},{"pin_number":"5","function":"Heater","function_code":"h","notes":null},{"pin_number":"6","function":"Grid 1 (Control)","function_code":"g1","notes":null},{"pin_number":"7","function":"Grid 2 (Screen)","function_code":"g2","notes":null},{"pin_number":"8","function":"Do Not Use","function_code":"nc","notes":null},{"pin_number":"9","function":"Plate","function_code":"a","notes":null}],"specs":[{"key":"Vh","display_name":"Heater Voltage","value":"6.3","numeric_value":"6.3","unit":"V","param_group":"heater"},{"key":"Ah","display_name":"Heater Current","value":"1.2","numeric_value":"1.2","unit":"A","param_group":"heater"}],"sections":[{"section_number":1,"section_label":"Beam Tetrode","tube_type_key":"beam_tetrode","specs":[{"key":"Va_max","display_name":"Anode Voltage (max)","value":"770","numeric_value":"770","unit":"V","param_group":"absolute_max"},{"key":"Vs_max","display_name":"Screen Voltage (max)","value":"220","numeric_value":"220","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"17.5","numeric_value":"17.5","unit":"W","param_group":"absolute_max"},{"key":"Ps_max","display_name":"Screen Dissipation (max)","value":"3.5","numeric_value":"3.5","unit":"W","param_group":"absolute_max"},{"key":"Ik_max","display_name":"Cathode Current (max)","value":"550","numeric_value":"550","unit":"mA","param_group":"absolute_max"},{"key":"Vhk_max","display_name":"Heater-to-Cathode Voltage (max)","value":"200","numeric_value":"200","unit":"V","param_group":"absolute_max"},{"key":"Cgp","display_name":"Grid-to-Plate Capacitance","value":"0.26","numeric_value":"0.26","unit":"pF","param_group":"capacitances"},{"key":"Cgk","display_name":"Grid-to-Cathode Capacitance","value":"15.0","numeric_value":"15","unit":"pF","param_group":"capacitances"},{"key":"Cak","display_name":"Anode-to-Cathode Capacitance","value":"6.5","numeric_value":"6.5","unit":"pF","param_group":"capacitances"}]}],"synced_at":"2026-04-07T12:24:32.148Z"}