UX-199=199 RCA Radiotron NOS 1930 era (1.7ma)
UX-201-A Radiotron used/very good 1930's (2.5ma Gm=700)
UX-201-A RCA Radiotron Balloon tests like new 1930's (read review)
UX-226 RCA Radiotron balloon used/good 1920's (3.7ma Gm=900)
UX-874 Radiotron Balloon tests like new 1930 era
UY-224 RCA Balloon used/good 1930's (37/25) (3.0ma Gm=700)
UY-224 RCA Balloon used/tests like new 1930's rattle inside base (50/25) (4.2ma Gm=1000)
UY-224A Champion Balloon used/very good 1930's (46/25)
UY-224A RCA Balloon used/very good 1930's (41/25) (2.6ma Gm=900)
UY41=31A3 Amperex Bugle Boy France NOS 1964 (0 in stock)
UY41=31A3 Philips Miniwatt "D" getter halo NOS 1958 (1 in stock)
V2000 Telefunken
VF14 or VF14M Telefunken NOS
VT-138=1629 RCA NOS 1940's 1/4" tilt bright eye
VT-138=JAN-CRC-1629 RCA NOS 1940's very slight glass tilt
VX-41A Victoreen NOS (4 in stock)
Wavy Washer NOS (30 in stock)
WL-0B2 Westinghouse NOS 1960 (argon gas) (1 in stock)
XXFM=7X7 Sylvania branded Philco NOS (2 in stock)
