[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-detail-672600-en":59,"doc-seo-672600-105":79},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":5,"data":60},{"doc_id":61,"user_id":62,"nickname":63,"user_avatar":64,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":66,"doc_content":67,"file_id":68,"file_url":69,"file_type":70,"file_size":71,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":72,"language_code":73,"site_id":74,"html_lang":73,"table_of_contents":75,"faqs":76,"seo_title":77,"seo_description":66,"update_tm":78,"read_time":24},672600,5909897196768,"Helloiii","https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Svetlana 572B - High-Mu Power Triode - Technical Data","Technical data sheet for the Svetlana 572B high-mu power triode used in Class AB, Class B, and Class C RF and audio amplifiers. Describes graphite anode construction for peak overload and 160 W average plate dissipation, low-loss ceramic base, bonded ceramic plate-cap thermal insulation, and hard-glass envelope for high-temperature transmitting-tube operation. Includes electrical and mechanical specifications, maximum ratings, typical grounded-grid linear amplifier operation up to 30 MHz, recommended mounting orientations, and performance curves.","SVETLANA TECHNICAL DATA  \n572B  \nHigh-Mu Power Triode  \n T he Svetlana™ 572B is a high-mu power triode intended for use in class AB, class B  \nand class C RF and Audio amplifiers. The Svetlana 572B features a massive graphite  \nanode for high peak overload capability and a high average plate dissipation of 160 Watts. The Svetlana 572B also features a low loss ceramic base and a bondedceramic plate cap thermal insulator for high power RF transmitting tube capability.  \nThe Svetlana 572B has a superior getter system based on titanium adhered to the external surface of the graphite anode. The titanium coating covers the entire anode area extended by the inherent micro surface roughness of graphite. The Svetlana 572B envelope is fabricated from hard glass intended specifically for the high-temperature operation of transmitting tubes.  \nThe internal tube parts are supported by low loss ceramic insulators for high-temperature operation and high voltage hold-off. The internal structure is well supported and is aligned with respect to the base pins to avoid internal shorts in equipment designed for horizontal tube mounting.  \nThe Svetlana 572B may be used as a direct drop-in replacement in equipment designed for  \nthe 811A, T160L or 572B.  \nCharacteristics  \nElectrical  \nFilament: Thoriated-tungsten  \nSvetlana Outline drawing  \n~~ 45.7 mm ~~  \nPlate connection standard medium cap, 14 mm Dia.  \n\n| Voltage (AC or DC) |  | 6.3 V ± 0. 3V |  |\n| --- | --- | --- | --- |\n| Current |  | 4 A |  |\n| Amplification factor (average) |  | 170 |  |\n| Direct interelectrode capacitances: |  |  |  |\n| Grid to plate |  | 6.0pF |  |\n| Grid to filament |  | 5.9 pF |  |\n| Plate to filament |  | 0.8 pF |  |\n| Maximum frequency for full ratings |  | 30 MHz |  |\n| Mechanical |  |  |  |\n| Cooling | Radiation and forced air |  |  |\n| Base | Ceramic, standard small four pin |  |  |\n| Plate cap | Standard medium cap 14 mm dia. with ceramic thermal insulation |  |  |\n| Plate connector | Svetlana PC-1A or equivalent |  |  |\n| Socket | Svetlana SK4A, Standard small, four contact |  |  |\n| Operating position-Axis vertical, base down or horizontal w/ pins 1 and 4 in vertical plane |  |  |  |\n| Nominal dimensions: |  |  |  |\n| Diameter |  | 45.7 mm (1.8 in.) |  |\n| Base to plate cap |  | 147.3 mm (5. 8 in. ) |  |\n| Overall height |  | 162.6 mm (6. 4 in. ) |  |\n| Net weight |  | 113 gm |  |\n| Linear RF Power Amplifier, Class B Grounded Grid, Maximum ratings |  |  |  |\n| ICAS* |  |  |  |\n| DC plate voltage | 2750 |  | V |\n| DC plate current | 275 |  | mA |\n| Plate dissipation | 160 |  | W |\n| DC Plate input | 600 |  | W |\n| DC Grid current | 50 |  | mA |\n| *Intermittant commercial and ameteur service |  |  |  |\n\nSvetlana  \nE L E C T R O N D E V I C E S  \nHeadquarters:  \n8200 South Memorial Parkway Huntsville, AL 35802  \nUSA  \nPhone: 205 882 1344  \nFax: 205 880 8077  \n[www.svetlana.com](www.svetlana.com)  \nMarketing & Engineering:  \n3000 Alpine Road Portola Valley, CA 94028 USA  \nPhone: 415 233 0429  \nFax: 415 233 0439  \n8/97  \nCeramic thermal insulation  \n162.6 mm  \nLow loss ceramic base, small four pin  \nP  \nNC 2 3 G  \n 1 4   \nF F  \nBase pin connections, bottom view  \nNotes:  \nThe internal structure is aligned with respect to the base pins to avoid internal shorting problems in equipment designed for horizontal tube mounting.  \nSvetlana 572B  \nHigh-Mu Power Triode  \nTypical Operation, Grounded Grid Linear Amplifier  \n\n| (frequencies to 30 MHz) | ICAS** |  |\n| --- | --- | --- |\n| DC plate voltage | 2400 | V |\n| DC grid voltage | -2 | V |\n| Zero-signal DC plate current ** | 45 | mA |\n| Single-tone DC plate current | 250 | mA |\n| Driving power | 50 | W |\n| Single-tone useful output power ** | 300 | W |\n\n** Approximate value  \nSvetlana  \nE L E C T R O N D E V I C E S  \nMechanical Application  \nMounting: The Svetlana 572B may be operated with its axis vertical and the base down, or horizontally with pins 1 and 4 ina vertical plane.  \nCURRENT (MILLIAMPERES)  \n800  \n600  \n400 ","cbCaiuorWXMH7y22","https://ap.wps.com/l/cbCaiuorWXMH7y22","pdf",43950,"English","en",105,"# Characteristics\n## Electrical\n## Mechanical\n# Typical Operation\n## Grounded Grid Linear Amplifier\n# Mechanical Application\n## Mounting\n# Typical Performance Curves\n## Plate Current and Grid Current\n# Versions for Audio Service","[{\"question\":\"What amplifier classes and applications is the Svetlana 572B intended for?\",\"answer\":\"It is intended for use in Class AB, Class B, and Class C RF and audio amplifiers.\"},{\"question\":\"What key design features support high power operation?\",\"answer\":\"A massive graphite anode provides high peak overload capability and 160 W average plate dissipation, paired with a low-loss ceramic base and bonded ceramic plate-cap thermal insulation.\"},{\"question\":\"What is the typical grounded-grid operation and frequency capability?\",\"answer\":\"Typical operation is provided for grounded-grid linear amplification, with maximum frequency for full ratings up to 30 MHz and example DC operating conditions and output power values.\"}]","Svetlana 572B - 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