{"type_number":"6CS6","canonical_url":"https://tubeofile.com/tubes/6CS6","manufacturer":"RCA","tube_type_key":"hexode","tube_type_display_name":"Hexode","base_name":"B7G","description":"Dual-control heptode in a miniature B7G envelope. Designed as a gated amplifier for television sync separator and AGC keying applications. Similar function to the 6BY6 but with different operating characteristics. Indirectly heated.","is_directly_heated":false,"completeness":"high","notes":["GE Essential Characteristics: Dual-Control Heptode, B7G (7CH) base. Va=100V, Vg2=30V, Vg=-1V, Ia=1mA, gm=1100 umhos, Rp=1MΩ, Pa_max=1W, Va_max=300V, Vg2_max=100V.","Philips interchange confirms 6CS6=EH90.","Sams lists 6BY6 as substitute — similar function but higher Pa_max on the 6BY6.","Muiderkring Handbook page 158 lists this type."],"references":["https://frank.pocnet.net/sheets/049/6/6CS6.pdf"],"source_urls":{"r_type":null,"tdsl":null,"radiomuseum":"https://www.radiomuseum.org/tubes/tube_6cs6.html"},"raw_equivalents":["EH90"],"equivalents":[],"similar":[{"type_number":"6BE6","reason":"Similar heptode on B7G base but designed as pentagrid converter","has_detail_page":true},{"type_number":"6BY6","reason":"Similar dual-control heptode on B7G base — same gated amplifier application, different operating points","has_detail_page":true}],"pins":[{"pin_number":"1","function":"Signal Grid (g1)","function_code":"g1","notes":null},{"pin_number":"2","function":"Cathode, Suppressor Grid (g5)","function_code":"k","notes":null},{"pin_number":"3","function":"Heater","function_code":"h","notes":null},{"pin_number":"4","function":"Heater","function_code":"h","notes":null},{"pin_number":"5","function":"Plate","function_code":"a","notes":null},{"pin_number":"6","function":"Screen Grid (g2+g4)","function_code":"g2","notes":null},{"pin_number":"7","function":"Control Grid (g3)","function_code":"g3","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":"0.3","numeric_value":"0.3","unit":"A","param_group":"heater"}],"sections":[{"section_number":1,"section_label":"Heptode","tube_type_key":"hexode","specs":[{"key":"Va_max","display_name":"Anode Voltage (max)","value":"300","numeric_value":"300","unit":"V","param_group":"absolute_max"},{"key":"Vs_max","display_name":"Screen Voltage (max)","value":"100","numeric_value":"100","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"1.0","numeric_value":"1","unit":"W","param_group":"absolute_max"},{"key":"Va","display_name":"Anode Voltage (typical)","value":"100","numeric_value":"100","unit":"V","param_group":"typical_operating"},{"key":"Vs","display_name":"Screen Voltage (typical)","value":"30","numeric_value":"30","unit":"V","param_group":"typical_operating"},{"key":"Vg","display_name":"Grid 1 Bias Voltage","value":"-1","numeric_value":"-1","unit":"V","param_group":"typical_operating"},{"key":"mAa","display_name":"Anode Current","value":"1","numeric_value":"1","unit":"mA","param_group":"typical_operating"},{"key":"ra","display_name":"Anode Resistance","value":"1000000","numeric_value":"1000000","unit":"Ω","param_group":"typical_operating"},{"key":"gm","display_name":"Transconductance","value":"1.1","numeric_value":"1.1","unit":"mA/V","param_group":"typical_operating"}]}],"synced_at":"2026-04-07T12:20:40.506Z"}