(!!) (BEST SINGLES) JAN-CRC-6U5 RCA NOS Tuning Eye 1952 bright eyes (4 in stock)
(!!) (Best Value Single) EF14 Telefunken Germany used/good 1950 (12.5ma)
(!!) (Best Value) 6U5 RCA NOS Tuning Eye 1950's bright eye slightly tilted glass
(!!) (Recommended Pair) 1619 RCA NOS 1952 - 1960's (52ma and 53.6ma)
(!!) (slightly microphonic) 6SL7GT RCA NOS black plates gray coated glass 1952 (2.8/2.8ma) 1% section balance
(!!) 12SN7GTA Tungsol tall bottle NOS 1960 era (7.0/8.0ma)
(!!) 5Z3G Westinghouse NOS 1957 (59/40 and 61/40)
(!!) 6F6GT Tungsol NOS 1953 (37.5ma)
(!!) 6U5 Tungsol NOS 1948 bright eye (1 in stock)
(!) (1 PAIR) 0D3 Tungsol used/test like new 1950's (argon)
(!) 244A Western Electric NOS 1952 smaller side getter (4.4ma)
(!) JAN-CLRV-6SN7WGTA GE Canada brown base NOS 1970 (7/10ma)
(slightly microphonic) 6SN7GTA GE NOS 1952 copper grid posts (7.4/10ma)
2050 GE burgundy base NOS 1952
5719 Sylvania Gold Brand NOS 1952 (similar to 6AD4) (4 in stock)
5Y4G RCA used/good 1948 (48/40 and 53/40)
5Y4GA RCA NOS 1963 (54/40 and 57/40)
5Y4GA RCA NOS 1971 (54/40 and 60/40)
5Y4GA Sylvania branded Zenith NOS 1960's (54/40 and 57/40)
5Y4GA Sylvania NOS 1960's (53/40 and 58/40)