7 pin ceramic tube socket with aluminium shields PLK7-2KE55 USSR military

7 pin ceramic tube socket with aluminium shields  PLK7-2KE55 USSR military

 Marked in rombus ♦ rusian military application

Silver plated

Shield is 55mm / 

For tubes EZ90, 6AH6, 6F36, EF93, 6ВА6, 6F31, EP93, 6CC31, 6J6A, ECC91, 6J5P, 6K4P, 6N15P, 6C4P  and other.