Quality vintage soviet ceramic tube sockets PLK9-D60 (ПЛК9-Д60) for miniature 9-pin tubes. Sockets are equipped with removable steel retainer. It is suitable for tubes like EL84/6BQ5/6P14 (6П14П), EL83/EL803S/6P15P (6П15П), 6N30P-DR, QQE03/12, 6E5P (6Э5П) and many others. After very easy removal of the retainer they may be used for all noval tube types. New old stock. Made in the 70's.