5814 / 12AU7 3 MICA JAN
Top of the line tough double triode tubes manufactured in the United States by General Electric, with 1950 or 1960 production dates. These miniature glass 9 pin amplifier tubes will sound great for a long time in your sound system, and come with gray plates, triple mica supports, and top getters. They are printed in white with GE logo, 5814A/WA MADE IN U.S.A. and are glass etched 5814A with dot codes. Some are also printed in red MADE FOR CANADIAN MARCONI COMPANY.