[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-672601-105":59,"doc-detail-672601-en":129},{"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":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","572b-high-mu-power-triode-key-specifications","572B - High-Mu Power Triode - Key Specifications","","Svetlana 572B is a high-mu power triode for class AB, B, and C RF and audio amplifiers, designed for high peak overload and high average plate dissipation up to 160 W. The tube uses a massive graphite anode with graphite-to-titanium getter system to improve vacuum performance, plus a low-loss ceramic base and bonded-ceramic plate cap thermal insulation for high-power RF transmitting capability. Electrical and mechanical data cover filament type, gain, capacitances, maximum frequency, ratings, dimensions, and operating mounting positions.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/572b-high-mu-power-triode-key-specifications/672601/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/572b-high-mu-power-triode-key-specifications/672601.png","ImageObject",300,407,{"name":92,"@type":93},"Obex","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-02",true,{"@type":101,"interactionType":102,"userInteractionCount":8},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What amplifier classes is the Svetlana 572B intended for?","Question",{"text":111,"@type":112},"It is intended for use in class AB, class B, and class C RF and audio amplifiers.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What is the Svetlana 572B’s maximum average plate dissipation?",{"text":116,"@type":112},"The maximum average plate dissipation is 160 Watts.",{"name":118,"@type":109,"acceptedAnswer":119},"How can the Svetlana 572B be mounted during operation?",{"text":120,"@type":112},"It may be operated with the axis vertical and the base down, or horizontally with pins 1 and 4 in a vertical plane.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},672601,1793600938,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":128,"read_time":24},5909898192665,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","he Svetlana572B is a high-mu power triode intended for use in class AB,class B andclass C RF and Audio amplifiers.The Svetlana 572B features a massive graphite anodefor 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 bonded-ceramic platecap thermal insulator for high power RF transmitting tube capability.  \nThe Svetlana 572B has a superior getter system based on titanium adhered to the externalsurface of the graphite anode.The titanium coating covers the entire anode area extended bythe inherent micro surface roughness of graphite.The Svetlana 572B envelope is fabricatedfrom 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-temperatureoperation and high voltage hold-off.The internal structure is well supported and is aligned withrespect to the base pins to avoid internal shorts in equipment designed for horizontal tubemounting.  \nSvetlana Outline drawing  \nNotes:  \nThe internal structure is aligned withrespect to the base pins to avoidinternal shorting problems in equip-ment designed for horizontal tubemounting.  \n572B  \nHigh-Mu Power Triode  \nThe Svetlana 572B may be used as a direct drop-in replacement in equipment designed forthe 811A,T160L or 572B.  \n\n| Characteristics   |  |\n| --- | --- |\n| Electrical   |  |\n| Filament:   | Thoriated-tungsten   |\n| Voltage (AC or DC)   | 6.3 V±0.3V   |\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| Ceramic,standard small four pin  \u003Cbr>Base   |  |\n| Standard medium cap 14 mm dia.with ceramic thermal insulation  \u003Cbr>Plate cap   |  |\n| Plate connector  \u003Cbr>S   | vetlana PC-1A or equivalent   |\n| Socket  \u003Cbr>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  \u003Cbr>V   |\n| DC plate current   | 275 mA   |\n| Plate dissipation   | W  \u003Cbr>160   |\n| DC Plate input   | W  \u003Cbr>600   |\n| DC Grid current   | 50 mA   |\n| *Intermittant commercial and ameteur service   |  |\n\n| Typical Operation,Grounded Grid Linear Amplifier   |  |  |\n| --- | --- | --- |\n| (frequencies to 30 MHz)   | ICAS**   |  |\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| *Approximate value   |  |  |\n\n# Mechanical Application\n\nMounting:The Svetlana 572B may be operated with its axisvertical and the base down,or horizontally with pins 1 and 4 ina vertical plane.  \nCURRENT(MILLIAMPERES)  \n040080012001600200024002800PLATE VOLTAGE(VOLTS)  \nVersions of the 572B designed for audio amplifier service are available.Ask for SV572 Series data.","cbCaioyye5DNe6uZ","https://ap.wps.com/l/cbCaioyye5DNe6uZ","pdf",1620012,"English","# Electrical Characteristics\n## Filament, voltage, current, gain, capacitances\n# Mechanical Characteristics\n## Base, plate cap, dimensions, operating position\n# Maximum Ratings\n## DC plate voltage and dissipation\n# Typical Operation\n## Grounded grid linear amplifier mode\n# Mechanical Application\n## Mounting and audio service variants","[{\"question\":\"What amplifier classes 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 is the Svetlana 572B’s maximum average plate dissipation?\",\"answer\":\"The maximum average plate dissipation is 160 Watts.\"},{\"question\":\"How can the Svetlana 572B be mounted during operation?\",\"answer\":\"It may be operated with the axis vertical and the base down, or horizontally with pins 1 and 4 in a vertical plane.\"}]","572B - High-Mu Power Triode - Key Specifications | PDF"]