FU5 845 211 805 810 VT4C 4Pin Ceramic Tube Socket G U4J 1.High Quality; 2.Mini Order:100pcs 3.FOB Price: US $9-18/pc FU5 845 211 805 810 VT4C 4Pin Ceramic Tube Socket G U4J For 4pin tubes FU-5,805,845,211,GL211,810....U4J BaseTube pins:Diameter 3.2mm(2), Diameter 4.0mm(2)Tube pins distribution:Diameter 16.30mm FU5 845 211 805 810 VT4C 4Pin Ceramic Tube Socket G U4J