GJ3M Germanium Diode by AEI Package: silver plated double ended stud, 3ba and 2ba thread ( see photo) Download AEI GJ3M diode datasheet: 200v 8A comes complete with original silver plated nuts. Status: NOS (New Old Stock) predates 1967 when AEI was absorbed by GEC and "ceased to be" as a brand Tested components: YES RoHS compliant: no