Description JJ Electronic 5U4GB Full – wave vacuum rectifier The JJ 5U4GB is an excellent choice. This tube is for use in any 5U4 socket.5U4GB is a directly heated full wave octal base rectifier for Hi-Fi and guitar amplifiers. Base : OCTAL Uf = 5 V If = 3 A Made In Slovak Republic JJ Electronic 5U4GB Data Sheet
