(!!!) (Best Pair 1957) 5Z3G RCA NOS 1957 in gold colored boxes slightly tilted glass (59-60/40 and 60-60/40)
(!!!) (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) 5Z4 Raytheon NOS 1950 (54/40 and 54/40 x 2 tubes)
(!!!) (BEST PAIR) 6AL5 Tungsol rebranded GE NOS 1966 era (49-49/40 x 2 tubes)
(!!!) (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) GB-5931 Sylvania Gold Brand brown base NOS 1960's (Premium 5U4GB) (60-60/40 and 59-60/40)
(!!!) (Best Pair) JAN-CEA-5852=6X5GT Bendix NOS 1953 (63-64/40 x 2 sections) 1% matched (Best Audio Grade 6X5GT)
(!!!) (BEST PAIR) JAN-CYS-1616=1616 Sperti, Inc. NOS made by RCA 1944 (Space Tech Labs power supply STR-104)
(!!!) (Best Price) 5726=6AL5 Sylvania JAN NOS (4 for $8.99)
(!!!) (BEST PRICE) 80 US Brands used/good (10 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 Pair) 6X5GT RCA black plates NOS 1953 (50-54/40 and 50-53/40)
(!!!) (Best Single) 5U4GB CBS NOS double "D" getters 1959 (59/40 and 60/40)
