{"type_number":"ECL82","canonical_url":"https://tubeofile.com/tubes/ECL82","manufacturer":"Philips","tube_type_key":"triode_pentode","tube_type_display_name":"Triode-Pentode","base_name":"Noval","description":"Triode-pentode compound tube in a Noval envelope. The triode section is designed as a voltage amplifier/driver, and the pentode section as an audio output stage. Widely used in European single-ended audio amplifiers and televisions. Indirectly heated.","is_directly_heated":false,"completeness":"high","notes":["The triode section: mu=70, Rp=14.5kΩ, Gm=4.8 mA/V at Va=200V, Vg=-3V. Plate dissipation max 1.5W.","The pentode section: at Va=170V, Vg2=170V, Vg1=-7.3V: Ia=34mA, Ig2=4.5mA, Rp=40kΩ, Gm=10.2 mA/V. Output power 3.4W at 5% THD with 5kΩ load. Plate dissipation max 9W, screen dissipation max 1.7W.","The 6BM8 is the American designation for the same tube with identical pinout and characteristics.","Common in European single-ended amplifiers where a single ECL82 provides both driver and output stages. Two ECL82s can be used in push-pull for approximately 8W output."],"references":["https://frank.pocnet.net/sheets/049/6/6BM8.pdf","https://tdsl.duncanamps.com/show.php?des=ECL82"],"source_urls":{"r_type":null,"tdsl":"https://tdsl.duncanamps.com/show.php?des=ECL82","radiomuseum":"https://www.radiomuseum.org/tubes/tube_ecl82.html"},"raw_equivalents":["6BM8","CV5215"],"equivalents":[],"similar":[{"type_number":"ECL85","reason":"Triode-pentode compound on Noval base but designed for frame output, not audio — different characteristics","has_detail_page":false},{"type_number":"ECL86","reason":"Similar triode-pentode compound on Noval base with higher output power (4W vs 3.4W) — different operating points, not pin-compatible","has_detail_page":false}],"pins":[{"pin_number":"1","function":"Triode Plate","function_code":"a_t","notes":null},{"pin_number":"2","function":"Triode Grid","function_code":"g1_t","notes":null},{"pin_number":"3","function":"Triode Cathode","function_code":"k_t","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":"Pentode Plate","function_code":"a_p","notes":null},{"pin_number":"7","function":"Pentode Screen Grid (g2)","function_code":"g2_p","notes":null},{"pin_number":"8","function":"Pentode Cathode","function_code":"k_p","notes":null},{"pin_number":"9","function":"Pentode Control Grid (g1)","function_code":"g1_p","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":"0.66","numeric_value":"0.66","unit":"A","param_group":"heater"}],"sections":[{"section_number":1,"section_label":"Triode","tube_type_key":"small_signal_triode","specs":[{"key":"Va_max","display_name":"Anode Voltage (max)","value":"300","numeric_value":"300","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"1.5","numeric_value":"1.5","unit":"W","param_group":"absolute_max"},{"key":"Va","display_name":"Anode Voltage (typical)","value":"200","numeric_value":"200","unit":"V","param_group":"typical_operating"},{"key":"Vg","display_name":"Grid 1 Bias Voltage","value":"-3","numeric_value":"-3","unit":"V","param_group":"typical_operating"},{"key":"mAa","display_name":"Anode Current","value":"10","numeric_value":"10","unit":"mA","param_group":"typical_operating"},{"key":"ra","display_name":"Anode Resistance","value":"14500","numeric_value":"14500","unit":"Ω","param_group":"typical_operating"},{"key":"gm","display_name":"Transconductance","value":"4.8","numeric_value":"4.8","unit":"mA/V","param_group":"typical_operating"},{"key":"mu","display_name":"Amplification Factor (μ)","value":"70","numeric_value":"70","unit":"—","param_group":"typical_operating"}]},{"section_number":2,"section_label":"Pentode","tube_type_key":"power_pentode","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":"300","numeric_value":"300","unit":"V","param_group":"absolute_max"},{"key":"Pa_max","display_name":"Anode Dissipation (max)","value":"9","numeric_value":"9","unit":"W","param_group":"absolute_max"},{"key":"Ps_max","display_name":"Screen Dissipation (max)","value":"1.7","numeric_value":"1.7","unit":"W","param_group":"absolute_max"},{"key":"Va","display_name":"Anode Voltage (typical)","value":"170","numeric_value":"170","unit":"V","param_group":"typical_operating"},{"key":"Vs","display_name":"Screen Voltage (typical)","value":"170","numeric_value":"170","unit":"V","param_group":"typical_operating"},{"key":"Vg","display_name":"Grid 1 Bias Voltage","value":"-7.3","numeric_value":"-7.3","unit":"V","param_group":"typical_operating"},{"key":"mAa","display_name":"Anode Current","value":"34","numeric_value":"34","unit":"mA","param_group":"typical_operating"},{"key":"mAs","display_name":"Screen Current","value":"4.5","numeric_value":"4.5","unit":"mA","param_group":"typical_operating"},{"key":"ra","display_name":"Anode Resistance","value":"40000","numeric_value":"40000","unit":"Ω","param_group":"typical_operating"},{"key":"gm","display_name":"Transconductance","value":"10.2","numeric_value":"10.2","unit":"mA/V","param_group":"typical_operating"},{"key":"Pout","display_name":"Output Power","value":"3.4","numeric_value":"3.4","unit":"W","param_group":"output"},{"key":"RL","display_name":"Load Resistance","value":"5000","numeric_value":"5000","unit":"Ω","param_group":"output_stage"}]}],"synced_at":"2026-04-07T12:40:16.386Z"}