(!!) (Best Pair) 76 Sylvania black plate NOS mid-1940's, 1 tube branded Delco (5.2/5.3ma) 1-2% matched
(!!) (Best Pair) EL822 Mullard black plate NOS 1970-1973 (43.2ma and 44.4ma)
(!!) (Pair) EL822 Mullard black plate NOS 1973-1974 (40ma and 41ma)
(!!) (Recommended Pair) 6AQ5A Sylvania branded RCA black plate NOS 1970's (50ma and 46.5ma)
(!!) (~ Best Value Pair ~) 56 Sylvania test like new 1940's (5.3ma and 5.5ma)
(!!) 6BQ5 Sylvania black plate NOS 1960 era (51ma)
(!!) 6BQ5 Sylvania gray plate NOS 1960's (63.5ma)
(!!) EL822 Mullard black plate NOS 1974 (51ma)
(!) (PAIR) 7189 Sylvania black plate NOS and like new 1960's (52ma and 56ma)
(!) (Recommended Pair) 76 Sylvania black plate branded Tungsol and Westinghouse NOS 1946 (5.6ma and 5.4ma)
(!) (Recommended Pair) 76 Sylvania black plate NOS mid-1940's (6.6ma and 6.5ma)
(!) (Recommended Sylvania Pair) 6BQ5 Sylvania black plate 1960's and 1973 (68ma and 62.5ma) (recommended for FIXED-BIAS amp only due to high current)
(Best 12AT7 Value) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1984 (3 in stock)
(Best 12AT7 Value) JAN-12AT7WC Sylvania black plates NOS 1970's - 1982 (13 in stock)
12E1 AEI by STC England black plate NOS (120ma)
56 GE used/good 1940's (4.2ma)
56 Made in Holland NOS 1940's (5.1ma)
56 National Union engraved base used/tests like new 1930's (6.0ma)
56 National Union used/good 1940's (5.3ma)
56 National Union used/good 1940's (5.9ma)
