(!!!!!) (Best Overall Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (9.4/8.6ma and 9.4/8.4ma) 1-2% matched (best sounding ECC33 of all-time)
(!!!!!) (Recommended Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (10.2/8.6ma and 9.5/8.6ma) (best sounding ECC33 of all-time)
(!!!!!) (Recommended Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (8.6/9.6ma and 8/10ma) (best sounding ECC33 of all-time)
(!!!!!) (Recommended Pair) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era (9.6/9.8ma and 9.6/10.6ma) (Highest mA and Gm) (best sounding ECC33 of all-time)
(!!!) (BEST PAIR) 485 National Radio tube engraved base mesh-plate NOS 1930's (6.0ma and 6.4ma) (variant of 27)
(BEST PRICE) 3C6=XXB Philco NOS (4 for $17.99)
12BV7=12BY7A Tungsol NOS 1960 era (35ma)
12J8 NOS
12K7G US Brands NOS (sold out)
12K7GT US Brands NOS (6 in stock)
12K8=12K8Y NOS (20 in stock)
12Q7G National Union NOS (38/20)
12Q7G Sylvania used/tests like new 1940's (44/20)
12Q7GT Dumont used/good (34/20)
12Q7GT Philco used/good (35/20)
12Q7GT RCA used/strong (42/20)
12R5 NOS (3 in stock)
12S8GT NOS (3 in stock)
17C9 GE NOS
34 Tungsol NOS
