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(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) CX-331 Cunningham NOS 1920's (12ma) (rare)
(!!!) X99=UX-99 Continental Chicago by RCA NOS 1920's (2.5ma)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!!) (Best Single) 12BH7A Westinghouse Canada ribbed plates NOS 1967 (12.2/14.2ma)
(!!) (Best Single) 7AF7 Sylvania branded Hytron NOS round black plates NOS 1952 (9.6/9.4ma) 1-3% section balance
(!!) (Recommended Pair) 12AX4GTA RCA NOS 1960 (98-99/60)
(!!) (Recommended Pairs) 12AX4GTB Sylvania NOS 1960's (8 pairs)
(!!) (Single) 12BH7A GE ribbed plates NOS 1977 (9.2/11.2ma)
(!!) (Single) 6SN7GTA Philco Sylvania "chrome top" used/good 1954 (6.4/6.8ma)
(!!) (SINGLE) 6U5 RCA NOS Tuning Eye 1976 bright eye
(!!) 12AU7A Sylvania NOS 1960 era (11.6/9.4ma)
(!!) 12AU7A Sylvania NOS 1970 (8.8/9.2ma)
(!!) 12BH7A Philco Sylvania gray oval plates "O" getter halo used/good 1962 (6.5/7.3ma)
(!!) 227 National balloon used/good, rattle inside base 1930 era (5.3ma)
(!!) 6BQ5 Sylvania gray plate NOS 1960's (63.5ma)
(!!) 6BQ5 Sylvania gray plate NOS 1970's (44ma)
(!!) 6V6GT Philco by Sylvania tests like new 1957 (42.2ma)
(!!) 71A Philco used/good 1930's (18.5ma)
(!) (1 Pair) 31 Sylvania rebranded Zenith NOS 1940's (12.8ma and 13.6ma)
