Sylvania 5AN8 Vacuum Tube 9 Pin Plug In Cylindrical Glass Body

Sylvania's 5AN8 vacuum tube is a compact dual-section electronic valve with a 9-pin miniature base and a cylindrical glass envelope designed for plug-in installation in equipment that accepts this model. It combines a triode and a pentode in a single envelope, enabling two amplification functions within one device and making it suitable for circuits that require two gain stages without adding extra sockets. The base is a nine-pin B9A configuration and the glass body is the cylindrical form typical of mid-century miniatures. Historically, 5AN8 tubes appear in Sylvania and RCA catalogs as multi-section noval tubes used in radios, test gear, and early television sets. This model is offered by sellers and catalogs as a Sylvania 5AN8, reflecting a vintage 9-pin miniature available for compatible equipment. For buyers, ensure your socket accepts a 9-pin noval tube and that the circuit is designed for a triode/pentode combination in a single envelope.