Octal plug
Q'ty: 1pcs
7Pin vacuum tube socket for FU29 FU19
9Pin noval to noval adaptor
8Pin Rimlok vacuum tube socket for EF41 EL41 ECC40
7Pin vacuum tube socket for 6J5 6H2 6X4, miniature socket
8Pin Gold Octal socket, for KT66 KT88 6SN7 6V6, etc