Details
New old stock ruggedized 7 pin miniature sharp cutoff pentode. Various brands.
NSN/FSN = 5960001699346 (6AU6WC), 5960001793710 (6AU6WC), 5960002620152 (6AU6WC), 5960003089363, 5960005520517, 5960006155680, 5960006179304, 5960006819802 (6AU6WB/C), 5960006922980 (6AU6WB/C), 5960007761901 (6AU6WB/C), 5960008058812 (6AU6WB), 5960008347503, 5960008920815 (6AU6WB/C), 5960009127571, 5960009361544
HP/Agilent Number = 1923-0022 (6AU6WB)
Tektronix Number = 154-0284-00