(!!!) (Best Pair 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (51-53/40 and 51-54/40)
(!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (58-64/40 and 59-65/40)
(!!!) (BEST PAIR) 12AL5 Tungsol NOS 1960 (48-48/40 and 48-48/40)
(!!!) (BEST PAIR) 12AL5 Tungsol NOS 1960 (48-49/40 and 48-49/40)
(!!!) (Best Pair) 35W4 GE NOS 1974 (53/40 x 2 tubes)
(!!!) (Best Pair) 35W4 GE NOS 1975-1978 (54/40 x 2 tubes)
(!!!) (Best Pair) 35W4 Tungsol NOS 1960 era (54/40 x 2 tubes)
(!!!) (Best Pair) 5U4GA Raytheon double "D" getters NOS 1956 (57-60/40 and 59-60/40)
(!!!) (BEST PAIR) 6CA4 RCA NOS 1969-1970's (52/40 and 53/40 x 2 tubes)
(!!!) (Best Pair) 81 ST-19 RCA NOS original boxes 1940's (1 pair)
(!!!) (Best Pair) GB-5931 Sylvania Gold Brand brown base NOS 1960's (Premium 5U4GB) (59-59/40 and 59-60/40)
(!!!) (BEST PAIR) JAN-CYS-1616=1616 Sperti, Inc. NOS made by RCA 1944 (Space Tech Labs power supply STR-104)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (Best RCA Pair) 5V4GA RCA gray plates NOS 1963-1965 slightly tilted glass (60-62/40 and 59-60/40)
(!!!) (BEST RCA SINGLE) 6CA4 RCA NOS 1963 (53/40 and 54/40)
(!!!) (BEST SINGLE #3) GZ32 Miniwatt Dario France NOS around 1955 (62/40 and 62/40) small rattle inside base
(!!!) (Best Single 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (55/40 and 58/40)
(!!!) (Best Single 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (57/40 and 60/40)
(!!!) (Best Single) 5V4GA RCA black plates NOS 1958 slightly tilted glass (62/40 and 62/40)
(!!!) (Best Single) 5V4GA RCA gray plates NOS 1966 (58/40 and 58/40)