{"type_number":"6DQ6","canonical_url":"https://tubeofile.com/tubes/6DQ6","manufacturer":"Tung-Sol","tube_type_key":"beam_tetrode","tube_type_display_name":"Beam Tetrode","base_name":"Octal","description":"High-perveance beam power pentode designed for horizontal deflection amplifier service in television receivers. Controlled heater warm-up characteristics. Identical to 12DQ6 except for heater ratings.","is_directly_heated":false,"completeness":"medium","notes":["The 6DQ6A is a high-perveance beam power pentode for horizontal deflection. Skirted miniature glass bulb with top-cap connection for plate (JEDEC cap C1-2 or C1-3).","Horizontal deflection amplifier max ratings: plate supply 770V DC (boost+DC), plate dissipation 18W, grid #2 voltage 220V DC, grid #2 dissipation 5.6W.","Average characteristics at Eb=250V, Ec2=150V, Ec1=-22.5V: Ia=55mA, Ig2=1.5mA, gm=6600 umhos, Rp=20kΩ."],"references":["https://frank.pocnet.net/sheets/127/6/6DQ6A.pdf","https://tdsl.duncanamps.com/show.php?des=6DQ6"],"source_urls":{"r_type":null,"tdsl":"https://tdsl.duncanamps.com/show.php?des=6DQ6","radiomuseum":"https://www.radiomuseum.org/tubes/tube_6dq6a.html"},"raw_equivalents":["6DQ6A","6DQ6B","6GW6","6CU6","6BQ6GT","6BQ6GTB","6GE5"],"equivalents":[],"similar":[{"type_number":"12DQ6","reason":"Identical except 12.6V heater — not interchangeable without heater circuit modification","has_detail_page":true},{"type_number":"6CD6G","reason":"Brans lists as related — similar horizontal deflection tube but higher power ratings","has_detail_page":true},{"type_number":"6GT5","reason":"Brans lists as related horizontal deflection beam pentode","has_detail_page":true}],"pins":[{"pin_number":"1","function":"No Connection","function_code":"nc","notes":null},{"pin_number":"2","function":"Heater","function_code":"h","notes":null},{"pin_number":"3","function":"Cathode, Grid 3 (Suppressor), Beam Plates","function_code":"k_g3","notes":null},{"pin_number":"4","function":"Grid 2 (Screen)","function_code":"g2","notes":null},{"pin_number":"5","function":"Grid 1 (Control Grid)","function_code":"g1","notes":null},{"pin_number":"6","function":"No Connection","function_code":"nc","notes":null},{"pin_number":"7","function":"Heater","function_code":"h","notes":null},{"pin_number":"8","function":"Cathode, Grid 3 (Suppressor), Beam Plates","function_code":"k_g3","notes":null},{"pin_number":"TC","function":"Anode (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 Pentode","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":"Vg2_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":"18","numeric_value":"18","unit":"W","param_group":"absolute_max"},{"key":"Pg2_max","display_name":"Screen Dissipation (max)","value":"5.6","numeric_value":"5.6","unit":"W","param_group":"absolute_max"},{"key":"Va","display_name":"Anode Voltage (typical)","value":"250","numeric_value":"250","unit":"V","param_group":"typical_operating"},{"key":"Vg","display_name":"Grid 1 Bias Voltage","value":"-22.5","numeric_value":"-22.5","unit":"V","param_group":"typical_operating"},{"key":"Vg2","display_name":"Screen Voltage","value":"150","numeric_value":"150","unit":"V","param_group":"typical_operating"},{"key":"mAa","display_name":"Anode Current","value":"55","numeric_value":"55","unit":"mA","param_group":"typical_operating"},{"key":"ra","display_name":"Anode Resistance","value":"20000","numeric_value":"20000","unit":"Ω","param_group":"typical_operating"},{"key":"gm","display_name":"Transconductance","value":"6.6","numeric_value":"6.6","unit":"mA/V","param_group":"typical_operating"},{"key":"Cgp","display_name":"Grid-to-Plate Capacitance","value":"0.5","numeric_value":"0.5","unit":"pF","param_group":"capacitances"},{"key":"Cgk","display_name":"Grid-to-Cathode Capacitance","value":"15","numeric_value":"15","unit":"pF","param_group":"capacitances"},{"key":"Cak","display_name":"Anode-to-Cathode Capacitance","value":"7","numeric_value":"7","unit":"pF","param_group":"capacitances"}]}],"synced_at":"2026-04-07T12:21:53.344Z"}