{"type_number":"6CD6G","canonical_url":"https://tubeofile.com/tubes/6CD6G","manufacturer":"Tung-Sol","tube_type_key":"beam_tetrode","tube_type_display_name":"Beam Tetrode","base_name":"Octal","description":"High-perveance beam power tube designed for horizontal deflection amplifier service in television receivers. Also used in some high-power audio amplifier designs. Octal base, glass (ST-16) bulb, indirectly heated.","is_directly_heated":false,"completeness":"low","notes":["Maximum ratings for TV horizontal deflection service (525-line, 30-frame): plate voltage 700V, peak positive-pulse plate voltage 6000V, peak negative-pulse plate voltage -1500V, screen voltage 175V, plate dissipation 15W.","Typical horizontal deflection operating conditions: plate supply 500V (350V DC + 150V boost), screen 170V, cathode bias 500Ω, plate current 90mA DC, screen current 15.5mA.","The 6CD6GA is an improved version with identical ratings.","Direct interelectrode capacitances: grid to plate 1 uuF max, input 26 uuF, output 10 uuF."],"references":["https://frank.pocnet.net/sheets/127/6/6CD6G.pdf","https://tdsl.duncanamps.com/show.php?des=6CD6G"],"source_urls":{"r_type":null,"tdsl":"https://tdsl.duncanamps.com/show.php?des=6CD6G","radiomuseum":"https://www.radiomuseum.org/tubes/tube_6cd6ga.html"},"raw_equivalents":["6CD6GA","6DN6","6EX6"],"equivalents":[],"similar":[{"type_number":"6BQ6GT","reason":"Earlier horizontal deflection beam tetrode on Octal base — lower power capability, not a drop-in","has_detail_page":false},{"type_number":"6DQ6","reason":"Similar horizontal deflection beam tetrode but different operating points — not identical","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":"Plate","function_code":"a","notes":null},{"pin_number":"4","function":"Screen Grid (g2)","function_code":"g2","notes":null},{"pin_number":"5","function":"Control Grid (g1)","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","function_code":"k","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":"2.5","numeric_value":"2.5","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":"700","numeric_value":"700","unit":"V","param_group":"absolute_max"},{"key":"Vs_max","display_name":"Screen Voltage (max)","value":"175","numeric_value":"175","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"15","numeric_value":"15","unit":"W","param_group":"absolute_max"},{"key":"Ps_max","display_name":"Screen Dissipation (max)","value":"3","numeric_value":"3","unit":"W","param_group":"absolute_max"},{"key":"Ik_max","display_name":"Cathode Current (max)","value":"170","numeric_value":"170","unit":"mA","param_group":"absolute_max"},{"key":"Vhk_max","display_name":"Heater-to-Cathode Voltage (max)","value":"135","numeric_value":"135","unit":"V","param_group":"absolute_max"},{"key":"Rg_max","display_name":"Max Grid Resistor","value":"1","numeric_value":"1","unit":"MΩ","param_group":"absolute_max"},{"key":"Cgp","display_name":"Grid-to-Plate Capacitance","value":"1.0","numeric_value":"1","unit":"pF","param_group":"capacitances"},{"key":"Cgk","display_name":"Grid-to-Cathode Capacitance","value":"26","numeric_value":"26","unit":"pF","param_group":"capacitances"},{"key":"Cak","display_name":"Anode-to-Cathode Capacitance","value":"10","numeric_value":"10","unit":"pF","param_group":"capacitances"}]}],"synced_at":"2026-04-07T12:19:48.852Z"}