USN-CHY-1616 Hytron USA tests like new - scratches on base 1950's (54/40)
UX-171A RCA Radiotron Balloon used/good 1930's (18ma)
UX-201-A Radiotron used/good 1930 era (2.4ma Gm=550)
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-245 RCA Balloon (display tube)
UX-245 RCA Balloon (display tube) (gassy)
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
