(!!) (BEST PAIR) 5Y4GA Sylvania NOS 1960's same date codes (54-59/40 and 53-58/40)
(!!) (BEST PAIR) FAA-12AL5 Sylvania NOS 1965 (48-48/40 and 48-48/40)
(!!) (Best Pair) GB-5726=6AL5 Sylvania Gold Brand Gold Pins NOS 1960's (49-49/40 and 49-49/40)
(!!) (Best Pair) GB-5726=6AL5 Sylvania Gold Brand Gold Pins NOS 1960's (49-50/40 and 50-50/40)
(!!) (Best Single) 5AS4A RCA NOS 1964 slightly tilted glass (56/40 and 56/40)
(!!) (Best Value) 5Y3GT Russian made NOS branded ULTRON 1970's (3 in stock)
(!!) (DISPLAY TUBE) 180 Arcturus Blue 1930 era (does not work - display tube only)
(!!) (Read Review) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (64-66/40 x 2 tubes)
(!!) (Recommended Pair) 5V3=5AU4 Sylvania NOS 1960's (54-54/40 and 54-56/40)
(!!) (Recommended Pair) 80 GE GT-shape NOS 1960 (56/40 and 62/40 x 2 tubes)
(!!) (Recommended Single) 5U4GA GE "D" getter NOS 1955 (57/40 and 59/50)
(!!) (Recommended Single) 5Y3GT Hytron NOS 1951 (56/40 and 60/40)
(!!) (Recommended Single) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (66/40 and 70/40)
(!!) (Recommended Single) 80 Philco by Sylvania NOS 1951 - 2 stains/blemishes inside glass (57/40 and 60/40)
(!!) (~ Best Single ~) CEA-5993 Bendix Rectifier NOS 1950's (54/40 and 54/40)
(!!) 5R4GYA GE brown base NOS 1972 (52/40 and 54/40)
(!!) 5R4GYA GE Hewlett Packard brown base "D" getter halo NOS 1959 (51/40 and 52/40)
(!!) 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40)
(!!) 5U4GB RCA NOS 1970 some white oxide flakes inside tube (55/40 and 55/40)
(!!) 5Z3G Sylvania Italy NOS 1960's (54/40 and 55/40)
