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12D4 GE NOS
12D4 GE NOS 1964 (52/40)
12D4 Philco by Sylvania used/tests like new 1959 (62/40)
12D4 Raytheon used/good 1960's (46/40)
12D4 RCA NOS 1960's tilted glass (52/40)
12D4 WG Co. by Sylvania used/strong 1959 (53/40)
12DB5 US Brands NOS (6 in stock)
12DE8 NOS (5 in stock)
12DT8 RCA gray plates NOS 1970's (12.2/16.4ma)
12DT8 RCA gray plates NOS 1970's (12.6/14.0ma)
12DU7 US Brands NOS (5 in stock)
12DW4A Amperex Japan NOS 1967 (1 pair)
12DW4A GE NOS 1960's (4 in stock)
12DW7 Sylvania rebranded RCA tests like new 1961 era (1.0ma/11.2ma)
12EM6 NOS
12F5GT NOS
12FK6
12FM6 NOS (5 in stock)
12FQ7
12FQ8 Realistic Lifetime by GE gray plates like new 1960's (1 in stock)