(!!!) (Recommended Single) EF94=6AU6 Tungsol used/tests like new 1957 (10ma)
(!) (2nd Best Pair) JAN-6AU6WB Sylvania NOS 1969 (6.5ma and 6.5ma) 1-2% matched
6AU6WB Sylvania NOS 1968 (7.2ma)
6AU6WC Sylvania NOS 1970-1980 (0 in stock)
6AU6WC=6136 GE NOS 1978-1979 (7.7ma)
7543 US Brands NOS (0 in stock)
