Details
New old stock 9 pin miniature twin triode. RCA brand with side getter and clear top. ECC82 is the European designation.
NSN/FSN = 5960000271716, 5960001667663, 5960001952416, 5960004048547, 5960004220578, 5960005575419, 5960006150247, 5960006178686, 5960006268521, 5960006858993, 5960006888788, 5960007171329, 5960008149657, 5960008269421, 5960008347504, 5960008378852, 5960008381354 (matched pair), 5960008665465, 5960011314086
HP/Agilent Number = 1932--00291932-0043, 1932-0046, 1932-0057, 1932-0066, 1932-0068, 5080-0041, 5080-0406, 5080-0425, 5080-0681, 5080-7332, 5080-7333
Tektronix Number = 154-0041-00