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26 ST-14 Super Silvertone used/good 1930's (3.6ma, Gm=800)
26 National Union ST-14 used/like new 1940's (6.1ma)
27 National Union engraved base used/good 1930's (4.4ma)
272A Western Electric "meshplate" used/good 1963 (5.0ma Gm=600)
291A Western Electric NOS 1972 (42/25)
291A Western Electric NOS 1972 (45/25)
291A Western Electric NOS around 1940 (1 pair)
2A6 Coronado engraved base NOS 1930's (29/19)
2A6 Raytheon engraved base used/good 1930's (33/19)
2A6 RCA Cunningham used good 1930's (32/19)
2AF4=2DZ4 NOS (20 in stock)
2AS2A=2BU2 US Brands NOS (20 in stock)
2CW4 RCA Nuvistor NOS 1963 (1 in stock)
2DV4 NOS
(!!) (Best Pair) ECC40 Philips Import NOS made by La Radiotechnique, Chartres/France 1960 (6.0/6.2ma and 6.1/6.4ma) (Same Gm) 1-2% matched
(!!!!!) (Best Pair) ECL82=6BM8 Mullard NOS 1967-1970 (2.6/37.5ma and 2.3/34ma) 1-5% matched
(!!!) (BEST VALUE PAIR #1) 6SN7GTB RCA coin-base 1970-1975 (10.4/9.6ma and 9.4/10.6ma)
(!!!) (Best Single) JAN-12AT7WC Sylvania black plates NOS 1976 (13/11.5ma)
(READ REVIEW) 6SN7GT Tungsol tests like new black coated glass and black round plates 1945 (9.2/9.0ma) (close triode balance)
(!!) (Best Pair #2) 407A Western Electric D getter NOS 1966-1968 (40-40/26 and 42-43/26) 1-5% section balance
