{"type_number":"5852","canonical_url":"https://tubeofile.com/tubes/5852","manufacturer":"Bendix (Red Bank Division)","tube_type_key":"rectifier","tube_type_display_name":"Rectifier","base_name":"Octal","description":"Bendix Red Bank Type TE-5 (JAN 5852). Octal heater-cathode full-wave high-vacuum rectifier from the Bendix ruggedized line, designed for aircraft, military and industrial power supplies where long life and resistance to vibration and shock are essential. Electrically a generic 6X5 with heavy construction, 45-hour run-in, triple mica and eight-pillar mount assembly. Shares its electrical ratings with two heater-voltage siblings 5839 (26.5 V) and 5838 (12.6 V).","is_directly_heated":false,"completeness":"high","notes":["JAN 5852 / Bendix Red Bank Type TE-5. The 5852 is described by Bendix as 'Generic Type 6X5' and is a pin-for-pin drop-in replacement for the 6X5GT family on the standard Octal base.","Physically shares its datasheet with two heater-voltage variants: 5839 (TE-2, 26.5 V / 0.255 A) and 5838 (TE-3, 12.6 V / 0.6 A). All three tubes are electrically identical apart from filament rating and are intended for different supply buses.","Octal base, 6 active pins (intermediate-shell octal with barriers, Melamine). Pinout is the same as 6X5GT: pin 2 = filament/heater, pin 3 = plate 2, pin 5 = plate 1, pin 7 = filament/heater, pin 8 = cathode, pins 1, 4 and 6 = open (no pin — NOT 'no connection'). Bendix specifically notes 'Do not connect leads to number 1 pin'.","Maximum ratings per Bendix datasheet: peak inverse voltage 1375 V, peak plate current 230 mA per plate, DC heater-cathode potential 450 V, total plate supply impedance 150 Ω min per plate. Max DC output current from Rating Chart: ≈70 mA with cap input or ≈75 mA with choke input at 350 V rms per plate — the curated reference table lists 65 mA DC output for the 5852 specifically.","Tube voltage drop ≈22 V at 33 mA per plate (≈65 mA DC output) derived from the Bendix 'Average Plate Characteristics' curve — the curve shows about 22 V at 30 mA and about 28 V at 40 mA per plate. Consistent with the published 6X5 Vdrop of 22 V.","Eight-pillar mount structure with button-type stem, heavy-gauge heater with pure alumina insulator, moderate-temperature large-area cathode for long life and freedom from arc-overs. 45-hour pre-run-in under overload, vibration and shock.","Frequently marketed as 'Bendix 6X5GT' in the audio rolling world — prized for its exceptional ruggedness, quiet operation and very long life relative to civilian 6X5 types.","6X5.json in this repo already lists 5852 as an equivalent — that linkage is bidirectional and correct."],"references":["https://frank.pocnet.net/sheets/131/5/5839.pdf"],"source_urls":{"r_type":null,"tdsl":"https://tdsl.duncanamps.com/show.php?des=5852","radiomuseum":"https://www.radiomuseum.org/tubes/tube_5852.html"},"raw_equivalents":["6X5","6X5G","6X5GT","6X5GT/G","6X5WGT","EZ35","U70","CV573","CV574"],"equivalents":[{"type_number":"6X5","equivalence_type":"direct","notes":null}],"similar":[{"type_number":"5838","reason":"Same Bendix Red Bank construction and ratings but 12.6 V / 0.6 A heater (Type TE-3) — not pin-compatible at 6.3 V bus","has_detail_page":false},{"type_number":"5839","reason":"Same Bendix Red Bank construction and ratings but 26.5 V / 0.255 A heater (Type TE-2) — not pin-compatible at 6.3 V bus","has_detail_page":false},{"type_number":"6X4","reason":"Same rectifier function and 6.3 V heater but B7G (7-pin miniature) base — not pin-compatible with Octal","has_detail_page":true}],"pins":[{"pin_number":"1","function":"No Pin (do not connect)","function_code":"nc","notes":null},{"pin_number":"2","function":"Heater","function_code":"h","notes":null},{"pin_number":"3","function":"Plate 2 (Anode 2)","function_code":"a2","notes":null},{"pin_number":"4","function":"No Pin","function_code":"nc","notes":null},{"pin_number":"5","function":"Plate 1 (Anode 1)","function_code":"a1","notes":null},{"pin_number":"6","function":"No Pin","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":"1.2","numeric_value":"1.2","unit":"A","param_group":"heater"}],"sections":[{"section_number":1,"section_label":"Rectifier","tube_type_key":"rectifier","specs":[{"key":"Va_max","display_name":"Anode Voltage (max)","value":"450","numeric_value":"450","unit":"V","param_group":"absolute_max"},{"key":"Vhk_max","display_name":"Heater-to-Cathode Voltage (max)","value":"450","numeric_value":"450","unit":"V","param_group":"absolute_max"},{"key":"PIV","display_name":"Peak Inverse Voltage","value":"1375","numeric_value":"1375","unit":"V","param_group":"rectifier"},{"key":"Vdrop","display_name":"Voltage Drop (typical)","value":"22","numeric_value":"22","unit":"V","param_group":"rectifier"},{"key":"Ia_peak","display_name":"Peak Anode Current (surge)","value":"230","numeric_value":"230","unit":"mA","param_group":"rectifier"},{"key":"Idc_max","display_name":"Max DC Output Current (total, not per-anode)","value":"65","numeric_value":"65","unit":"mA","param_group":"rectifier"},{"key":"Rs_min","display_name":"Min Series Resistance (C-input)","value":"150","numeric_value":"150","unit":"Ω","param_group":"rectifier"}]}],"synced_at":"2026-04-09T05:16:33.256Z"}