(!!!) USN-CRC-1629=VT-138 RCA NOS 1940 (bright eye) (oldest single)
(!!) (BEST SINGLES) JAN-CRC-6U5 RCA NOS Tuning Eye 1952 bright eyes (4 in stock)
(!!) (Best Value) 6U5 RCA NOS Tuning Eye 1950's bright eye slightly tilted glass
(!!) (Recommended) JAN-CKR-1629 Ken Rad NOS 1940's bright eye
(!!) 6E5 RCA NOS 1940's (2 in stock)
(!!) 6E5 Sylvania NOS (2 in stock)
(!!) 6U5 Tungsol NOS 1948 bright eye (1 in stock)
1M3=DM70
1N3=DM71 NOS (maybe 1 Telefunken in stock soon)
6AL7GT GE NOS 1950 era
6U5 RCA like new 1970 (bright green eye)
6U5 Sylvania 1940's used/good medium brightness
6U5 Sylvania Tuning Eye NOS 1940's (4 in stock)
6U5 Sylvania Tuning Eye NOS 1940's (bright eye)
6U5 Tungsol Tuning Eye NOS 1949 (bright eye)
EM35 Telefunken Germany NOS 1957 tuning eye (recommended)
UM80 Telefunken <> bottom NOS (tuning eye)
UM80 Valvo Holland tuning eye NOS (2 in stock)
UM84 Valvo used (tuning eye)
VT-138=1629 RCA NOS 1940's 1/4" tilt bright eye
