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(!!) (Recommended Pair) 8417 Sylvania NOS 1970 era (92.6ma and 93.8ma)
(!!) (Recommended Pair) 8417 Sylvania NOS 1970 era same date codes (109ma and 104.5ma)
(!!) (Recommended Pair) ECL86=6GW8 GE and Philips by Brimar UK NOS 1968 (1.4/1.0ma and 31/33ma)
(!!) (Recommended Pair) ECL86=6GW8 Mullard UK branded GE and Sylvania NOS 1970 (1.5/1.2ma and 43.5/40ma)
(!!) (Recommended Pair) ECL86=6GW8 Mullard UK NOS 1964 and 1973 same build (1.5/1.3ma and 31/30ma)
(!!) (Recommended Pair) JAN-6146W Sylvania NOS 1966 and 1976 (105ma and 98ma)
(!!) (Recommended Pair) JEA-6094 and JAN-6094 Bendix NOS 1959-1961 (49ma and 53ma)
(!!) (Recommended Pair) UX-171A and CX-371A RCA/Cunningham Balloon used/test like new 1930 era same build (24.6ma and 27.2ma) (same Gm)
(!!) (Recommended Single) 47 Raytheon NOS 1955 (35.6ma Gm=2680)
(!!) (Recommended Single) 47 Sylvania NOS 1952 (38.6ma Gm=2750)
(!!) (Recommended Single) 5881 GE Canada NOS 1977 (75.5ma) (same build as Tungsol)
(!!) (Recommended Single) 6550A GE branded Westinghouse stapled plates NOS 1980 era (129ma)
(!!) (Recommended Single) 6550A GE rebranded RCA stapled plates NOS 1979 slightly tilted glass (136.5ma)
(!!) (Recommended Single) 6L6WGB=5881 Sylvania branded GE NOS (65ma)
(!!) (Recommended SIngle) 6V6GT Raytheon Silvertone black coated glass NOS 1940's (50.5ma)
(!!) (Recommended Single) VT-52 Sylvania NOS 1940's original box (55ma)
(!!) (Recommnded Pair) 826 Ken Rad NOS 1942-1943 (1 pair)
(!!) (Single 1962) EL84 Mullard UK NOS (rX1-B2C3=1962) (39.6ma)
(!!) (Single) 2A3 Sylvania black plates connected in middle like new 1940's (104ma)
(!!) (Single) 47 RCA Victor NOS 1940's (32ma Gm=2620)