Vintage russian 8-pin ceramic tube socket PL8-2K (ПЛ8-2К) with steel mounting bracket. These sockets are suitable for EL34, 6SN7, KT88, 6L6, 6P3S-E (6П3С-E), 6N8S (6Н8С), 6N9S (6H9C), 5C3S (5Ц3С) and many other tubes. Years of production (1959-1964) and markings on the ceramic may differ. New old stock parts.