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12DT8 RCA gray plates NOS 1970's (12.2/16.4ma)
12DT8 RCA gray plates NOS 1970's (12.6/14.0ma)
12DZ6=12EA6 NOS
12E1 AEI by STC England black plate NOS (120ma)
12E1=CV345 STC England brown base/gray plate side getter NOS (140ma)
12EM6 NOS
12F5GT NOS
12FK6
12FM6 NOS (5 in stock)
12FQ8 Realistic Lifetime by GE gray plates like new 1960's (1 in stock)
12FQ8 Wurlitzer by GE black plates "U" getter used/good 1960 (10 in stock)
12FQ8 Wurlitzer by GE black plates used/good 1961 (10 in stock)
12FQ8 Wurlitzer by RCA gray plates used/good 1964 (28 in stock)
12FR8 NOS
12FX8A GE NOS
12GB3 JAPAN NOS (0 in stock)
12H6 US Brands NOS (15 in stock)
12HG7=12GN7 RCA Big Bottle NOS 1960's (44ma) (rare)
12HG7=12GN7 RCA clear top NOS 1970's (25ma)
12HG7=12GN7A Delta Gold Seal Toshiba Japan like new (37ma)