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257A Western Electric printed base NOS 1954
257A Western Electric printed base NOS 1960
26 Coronado by RCA tests like new 1940's (6.0ma)
26 National Union engraved base tests like new 1930's (6.0ma)
26 RCA Radiotron/Cunningham engraved used/very good 1930's (5.9ma)
26 ST-14 National Union used/good 1950 era (3.8ma, Gm=900)
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
