(display tube) UV-99 Radiotron brass base 1920's - lights up but does not have emission
(display tube) UV-99 Radiotron brass base 1920's tarnished base - lights up
(display tube) UV-99 Unknown maker - does not work
(Read Review) 26 Sylvania branded Westinghouse NOS 1946
6AU8A GE Lafayette NOS (5 in stock)
CX-299=99 Cunningham NOS 1930 era (2.1ma)
UX-199=199 RCA Radiotron NOS 1930 era (1.7ma)
