(!!) (#1 244A Pair 1930's - 1940) 244A Western Electric NOS ST-14 "Engraved Base" 1930's - 1940 (4.1ma and 5ma) (matched on Amplitrex)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!!) (Best VT-52 Single #2) VT-52 Western Electric engraved base early 1940's like new (65ma)
(!!) (Single) 2A3 RCA branded CBS black plates like new 1940's (103ma) (high Gm)
(!!) 286A Western Electric "top printing" NOS 1942-1945 (6.9ma) (Buy two 286A receive 5% discount)
(!!) 76 Raytheon NOS 1940's (5.5ma)
(!!) 76 Sylvania NOS 1940's (5.8ma)
(!) (PAIR) 6D6 RCA Cunningham used/good 1930's (62/40 and 62/40)
(!) 30 Philco engraved base NOS 1930's (3.7ma)
(!) 47 RCA Radiotron engraved base used/good 1930's (27.5ma Gm=2250)
(!) 80 National Union used/strong 1940's (53/40 and 56/40)
(1 Pair) 31 RCA/Cunningham NOS 1930's - 1940's (12.0ma and 13.2ma) (Same Gm)
(1 set of 4 tubes) 6D6 Mixed US Brands used/good 1930's - 1940's (set of 4)
(BEST PRICE) 42 Mixed US Brands used good (4 for $44.99)
15 Zenith engraved base used/50% output
1A4=1A4G National Union engraved base used/like new 1930's
231D Western Electric NOS 1953 (1.6ma)
24A Raytheon NOS 1940's (50/25)
24A RCA Cunningham engraved base NOS 1940 era (3 in stock)
257A Western Electric engraved base NOS 1930's (6 in stock) (257A is a 231D with a top cap grid connection)