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(!!!) (Recommended Pair) 76 Sylvania NOS - 1 tube branded National Union 1947 era same build (5.3ma and 5.6ma)
(!!!) (Recommended Single) 5691 RCA Red Base black plates used/good 1959 (2.3/2.0ma)
(!!!) USN-CRC-1629=VT-138 RCA NOS 1940 (bright eye) (oldest single)
(!!) (Best Value Single) 5U4G RCA "D" getter halo NOS 1952 - 1 small flake inside glass - tilted glass (60/40 and 60/40) 1% section balance
(!) (Best Single) 2X2 National Union NOS 1950 era (59/40)
(!) (GOOD VALUE PAIR) JAN-CRC-6AC7=VT-112 US Brands 1942-1946 used/good (6.2/6.4ma)
(!) (Recommended Pair) 76 Sylvania black plate branded Tungsol and Westinghouse NOS 1946 (5.6ma and 5.4ma)
(!) (slightly microphonic) JAN-CRC-6SL7GT RCA NOS black plates 1951 tilted glass (2.0/2.2ma)
2X2 National Union NOS (4 in stock)
