Details
New old stock 7 pin miniature sharp cutoff pentode. Various brands. EF95 is the European designation.
NSN/FSN = 5960001883545, 5960002965353, 5960004359801, 5960005321942, 5960007229729 (matched pair), 5960008381358 (matched pair)
HP/Agilent Number = 1923-0055, 1923-0081
Tektronix Number = 154-0014-00, 157-0063-00 (matched pair)