{"type_number":"6H13C","canonical_url":"https://tubeofile.com/tubes/6H13C","manufacturer":"Svetlana","tube_type_key":"power_triode","tube_type_display_name":"Power Triode","base_name":"Octal","description":"Soviet twin power triode with separate indirectly heated cathodes and low internal resistance, designed for electronic voltage stabilizer circuits. Also used as a low-frequency power amplifier in push-pull output stages and widely adopted in OTL headphone amplifiers. Equivalent to the Western 6AS7G/6080 family.","is_directly_heated":false,"completeness":"high","notes":["Also written as 6Н13С in Cyrillic; the Latin transliteration 6N13S is used interchangeably in Western markets.","The Russian datasheet specifies typical parameters at a lower operating point (Va=90V, Vg=-30V) than Western 6AS7 datasheets (Va=135V or 250V). At Va=90V: Ia=76mA, gm=5.5 mA/V, ra<=460 Ω per triode.","Maximum ratings per triode: Va=250V (operating), Va=500V (momentary on cold tube), Pa=13W, Ia=130mA.","Grid circuit resistance must not exceed 1 MΩ. When used in compensator-type electronic stabilizers as a pass element, Rg may be up to 3 MΩ.","Rated for ambient temperature range -60 to +70 °C and relative humidity up to 98% at +20 °C. Guaranteed service life: 1000 hours."],"references":["https://frank.pocnet.net/sheets/113/6/6N13S.pdf","http://www.r-type.org/exhib/aaa0679.htm"],"source_urls":{"r_type":"http://www.r-type.org/exhib/aaa0679.htm","tdsl":null,"radiomuseum":"https://www.radiomuseum.org/tubes/tube_6n13s.html"},"raw_equivalents":["6AS7","6AS7G","6AS7GA","6080","6080WA","6080WB","6520","6N13S","CV2523","CV2984","CV10322","CK6080","E6080","ECC230","A1834","A4475","EI834","RK6080","6N5S","6N13P"],"equivalents":[{"type_number":"6080","equivalence_type":"direct","notes":null},{"type_number":"6AS7","equivalence_type":"direct","notes":null},{"type_number":"6AS7G","equivalence_type":"direct","notes":null},{"type_number":"6N13P","equivalence_type":"direct","notes":null},{"type_number":"6N5S","equivalence_type":"direct","notes":null}],"similar":[{"type_number":"5998","reason":"Same Octal pinout but approximately double the mu (5.4 vs 2.0) and gm (15.5 vs 7.0 mA/V) — changes bias points, not a drop-in","has_detail_page":true}],"pins":[{"pin_number":"1","function":"Grid (triode 2)","function_code":"g1_2","notes":null},{"pin_number":"2","function":"Anode (triode 2)","function_code":"a2","notes":null},{"pin_number":"3","function":"Cathode (triode 2)","function_code":"k2","notes":null},{"pin_number":"4","function":"Grid (triode 1)","function_code":"g1_1","notes":null},{"pin_number":"5","function":"Anode (triode 1)","function_code":"a1","notes":null},{"pin_number":"6","function":"Cathode (triode 1)","function_code":"k1","notes":null},{"pin_number":"7","function":"Heater","function_code":"h","notes":null},{"pin_number":"8","function":"Heater","function_code":"h","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":"Triode","tube_type_key":"power_triode","specs":[{"key":"Va_max","display_name":"Anode Voltage (max)","value":"250","numeric_value":"250","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"13","numeric_value":"13","unit":"W","param_group":"absolute_max"},{"key":"Ik_max","display_name":"Cathode Current (max)","value":"130","numeric_value":"130","unit":"mA","param_group":"absolute_max"},{"key":"Vhk_max","display_name":"Heater-to-Cathode Voltage (max)","value":"300","numeric_value":"300","unit":"V","param_group":"absolute_max"},{"key":"Rg_max","display_name":"Max Grid Resistor","value":"1.0","numeric_value":"1","unit":"MΩ","param_group":"absolute_max"},{"key":"Va","display_name":"Anode Voltage (typical)","value":"90","numeric_value":"90","unit":"V","param_group":"typical_operating"},{"key":"Vg","display_name":"Grid 1 Bias Voltage","value":"-30","numeric_value":"-30","unit":"V","param_group":"typical_operating"},{"key":"mAa","display_name":"Anode Current","value":"76","numeric_value":"76","unit":"mA","param_group":"typical_operating"},{"key":"ra","display_name":"Anode Resistance","value":"460","numeric_value":"460","unit":"Ω","param_group":"typical_operating"},{"key":"gm","display_name":"Transconductance","value":"5.5","numeric_value":"5.5","unit":"mA/V","param_group":"typical_operating"},{"key":"mu","display_name":"Amplification Factor (μ)","value":"2.5","numeric_value":"2.5","unit":"—","param_group":"typical_operating"},{"key":"Rk","display_name":"Cathode Resistor (self-bias)","value":"250","numeric_value":"250","unit":"Ω","param_group":"typical_operating"},{"key":"Cgp","display_name":"Grid-to-Plate Capacitance","value":"10","numeric_value":"10","unit":"pF","param_group":"capacitances"},{"key":"Cgk","display_name":"Grid-to-Cathode Capacitance","value":"8","numeric_value":"8","unit":"pF","param_group":"capacitances"},{"key":"Cak","display_name":"Anode-to-Cathode Capacitance","value":"3","numeric_value":"3","unit":"pF","param_group":"capacitances"}]}],"synced_at":"2026-04-07T19:04:05.771Z"}